Clinical and Experimental Dental Research最新文献_第4页

Australian Dentists' Knowledge of the Consequences of Interpretive Errors in Dental Radiographs and Potential Mitigation Measures 澳大利亚牙医对牙科 X 射线照片判读错误后果的认识及潜在缓解措施

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-10-17 DOI: 10.1002/cre2.70027

Shwetha Hegde, Shanika Nanayakkara, Stephen Cox, Rajesh Vasa, Jinlong Gao

Objectives

Dental radiographs, typically taken and interpreted by dentists, are essential for diagnosis and effective treatment planning. Interpretive errors in dental radiographs, stemming from failures of visual and cognitive processes, can affect both patients and clinicians. This survey aimed to assess the dental practitioners' perceptions of the consequences of these errors and potential measures to minimize them.

Materials and Methods

This online anonymized survey assessed Australian dental practitioners' perceptions of the consequences of these errors and potential mitigation measures using ranking, Likert scale, and open-ended questions. The data were analyzed using descriptive statistics and bivariate analysis.

Results

Participants identified undertreatment (72%) and legal implications (82%) as the most significant consequences of interpretive errors, whereas severe harm to patients was deemed the least likely. Dental practitioners placed a greater emphasis on maintaining a high level of competence and the well-being of their patients. Utilizing high-quality images (63.9%) and appropriate radiographs (59.7%) were identified as the most effective measures to minimize interpretive errors. Participants showed hesitancy regarding the reliance on machine learning as a clinical decision-making tool.

Conclusions

The survey provides valuable practical insights into the consequences and targeted measures to minimize the occurrence of interpretive errors. Efforts to minimize interpretive errors should address patient safety and practitioners' concerns about professional reputation and business viability. The study also suggests further research into the role of machine learning algorithms in reducing interpretive errors in dentistry.

目的牙科 X 光片通常由牙科医生拍摄和判读，对于诊断和有效的治疗计划至关重要。由于视觉和认知过程的失误而导致的牙科 X 光片判读错误会对患者和临床医生造成影响。本调查旨在评估牙科医生对这些错误后果的看法以及减少这些错误的潜在措施。材料与方法该在线匿名调查采用排序、李克特量表和开放式问题的方式，评估了澳大利亚牙科医生对这些错误的后果和潜在缓解措施的看法。采用描述性统计和双变量分析法对数据进行了分析。结果参与者认为治疗不足（72%）和法律影响（82%）是解释性错误最主要的后果，而对患者造成严重伤害的可能性最小。牙科医生更重视保持高水平的能力和患者的健康。使用高质量的图像（63.9%）和适当的射线照片（59.7%）被认为是减少判读错误的最有效措施。参与者对依赖机器学习作为临床决策工具表示犹豫。结论该调查提供了宝贵的实用见解，帮助人们了解最大限度减少判读错误发生的后果和有针对性的措施。尽量减少解释性错误的努力应解决患者安全问题以及从业人员对专业声誉和商业可行性的担忧。这项研究还建议进一步研究机器学习算法在减少牙科口译错误中的作用。

{"title":"Australian Dentists' Knowledge of the Consequences of Interpretive Errors in Dental Radiographs and Potential Mitigation Measures","authors":"Shwetha Hegde, Shanika Nanayakkara, Stephen Cox, Rajesh Vasa, Jinlong Gao","doi":"10.1002/cre2.70027","DOIUrl":"https://doi.org/10.1002/cre2.70027","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Dental radiographs, typically taken and interpreted by dentists, are essential for diagnosis and effective treatment planning. Interpretive errors in dental radiographs, stemming from failures of visual and cognitive processes, can affect both patients and clinicians. This survey aimed to assess the dental practitioners' perceptions of the consequences of these errors and potential measures to minimize them.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>This online anonymized survey assessed Australian dental practitioners' perceptions of the consequences of these errors and potential mitigation measures using ranking, Likert scale, and open-ended questions. The data were analyzed using descriptive statistics and bivariate analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Participants identified undertreatment (72%) and legal implications (82%) as the most significant consequences of interpretive errors, whereas severe harm to patients was deemed the least likely. Dental practitioners placed a greater emphasis on maintaining a high level of competence and the well-being of their patients. Utilizing high-quality images (63.9%) and appropriate radiographs (59.7%) were identified as the most effective measures to minimize interpretive errors. Participants showed hesitancy regarding the reliance on machine learning as a clinical decision-making tool.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The survey provides valuable practical insights into the consequences and targeted measures to minimize the occurrence of interpretive errors. Efforts to minimize interpretive errors should address patient safety and practitioners' concerns about professional reputation and business viability. The study also suggests further research into the role of machine learning algorithms in reducing interpretive errors in dentistry.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142449176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association of Periodontal Condition With Impaired Glucose Tolerance: Results of a 15-Year Follow-Up Study 牙周状况与葡萄糖耐量受损的关系：15 年随访研究结果

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-10-13 DOI: 10.1002/cre2.70023

Ville Myllymäki, Pekka Ylöstalo, Anna Liisa Suominen, Matti Knuuttila, Ulla Rajala, Sirkka Keinänen-Kiukaanniemi, Sirpa Anttila, Tuomas Saxlin

Objectives

The aim of this study was to investigate whether periodontal condition is associated with the development of impaired glucose tolerance (IGT).

Material and Methods

This study was based on a subpopulation of a cohort of persons born in 1935 and living in Oulu, Finland, on October 1, 1990. The participants were normoglycemic (no previously diagnosed diabetes mellitus and a 2-h oral glucose tolerance test [OGTT] blood glucose < 7.8 mmol/L) in the baseline examinations (1990–1992) and had fasting blood glucose < 7.0 mmol/L in the follow-up examinations (2007–2008) (n = 225). The outcome was IGT on follow-up, measured by a blood glucose level of ≥ 7.8 mmol/L after OGTT. The exposure was the periodontal condition at baseline categorized into four groups: 0, 1–6, ≥ 7 sites with deepened (≥ 4 mm) periodontal pockets, and edentulousness.

Results

A total of 23% of the participants developed IGT. The adjusted incidence rate ratios with 95% confidence intervals (CI) for dentate participants with 1–6 sites and ≥ 7 sites with deepened periodontal pockets, and edentate participants (reference category dentate participants without deepened periodontal pockets) were 1.5 (95% CI, 0.6–4.0), 1.8 (95% CI, 0.7–4.4), and 1.6 (95% CI, 0.6–4.0), respectively.

Conclusions

Poor periodontal condition may predispose individuals to IGT; however, further studies on this matter are warranted.

目的本研究旨在探讨牙周状况是否与糖耐量受损（IGT）的发生有关。材料与方法本研究的对象是 1935 年出生、1990 年 10 月 1 日居住在芬兰奥卢的人群中的一个亚群。参与者在基线检查（1990-1992 年）中血糖正常（既往未确诊糖尿病，2 小时口服葡萄糖耐量试验 [OGTT] 血糖为 7.8 mmol/L），在随访检查（2007-2008 年）中空腹血糖为 7.0 mmol/L（n = 225）。随访结果为 IGT，测量指标为 OGTT 后血糖水平≥ 7.8 mmol/L。暴露是基线时的牙周状况，分为四组：0、1-6、≥ 7 个部位牙周袋加深（≥ 4 毫米）和无牙缝。结果共有 23% 的参与者患上了 IGT。牙周袋加深 1-6 个部位和≥ 7 个部位的无牙者和无牙齿者（参照类别为无牙周袋加深的无牙者）的调整后发病率比（95% 置信区间）分别为 1.5（95% CI，0.6-4.0）、1.8（95% CI，0.7-4.4）和 1.6（95% CI，0.6-4.0）。结论牙周状况不佳可能会导致胰岛素抵抗，但还需要进一步研究。

{"title":"Association of Periodontal Condition With Impaired Glucose Tolerance: Results of a 15-Year Follow-Up Study","authors":"Ville Myllymäki, Pekka Ylöstalo, Anna Liisa Suominen, Matti Knuuttila, Ulla Rajala, Sirkka Keinänen-Kiukaanniemi, Sirpa Anttila, Tuomas Saxlin","doi":"10.1002/cre2.70023","DOIUrl":"https://doi.org/10.1002/cre2.70023","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>The aim of this study was to investigate whether periodontal condition is associated with the development of impaired glucose tolerance (IGT).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>This study was based on a subpopulation of a cohort of persons born in 1935 and living in Oulu, Finland, on October 1, 1990. The participants were normoglycemic (no previously diagnosed diabetes mellitus and a 2-h oral glucose tolerance test [OGTT] blood glucose < 7.8 mmol/L) in the baseline examinations (1990–1992) and had fasting blood glucose < 7.0 mmol/L in the follow-up examinations (2007–2008) (<i>n</i> = 225). The outcome was IGT on follow-up, measured by a blood glucose level of ≥ 7.8 mmol/L after OGTT. The exposure was the periodontal condition at baseline categorized into four groups: 0, 1–6, ≥ 7 sites with deepened (≥ 4 mm) periodontal pockets, and edentulousness.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A total of 23% of the participants developed IGT. The adjusted incidence rate ratios with 95% confidence intervals (CI) for dentate participants with 1–6 sites and ≥ 7 sites with deepened periodontal pockets, and edentate participants (reference category dentate participants without deepened periodontal pockets) were 1.5 (95% CI, 0.6–4.0), 1.8 (95% CI, 0.7–4.4), and 1.6 (95% CI, 0.6–4.0), respectively.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Poor periodontal condition may predispose individuals to IGT; however, further studies on this matter are warranted.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Periodontal Evaluation for a New Alkasite Restorative Material in Noncarious Cervical Lesions: A Randomized-Controlled Clinical Trial 新型 Alkasite 修复材料对非龋性牙颈部病变的牙周评估：随机对照临床试验

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-10-13 DOI: 10.1002/cre2.70025

Khattab Mustafa, Ghaith Alfakhry, Hussam Milly

Objectives

This study aims to evaluate the periodontal condition adjacent to Cention N (CN) restorations applied for noncarious cervical lesions (NCCL) compared with resin-modified glass ionomer cement (RM-GIC) restorations in terms of plaque accumulation, attachment loss, and gingival inflammation.

Materials and Methods

This is a double-blind split-mouth three-armed randomized-controlled clinical trial. The study arms are RM-GIC (FUJI II LC), CN + adhesive system, and CN + retentive groove. The study included 25 restorations per arm. Follow-ups were performed at 1 week, 3, 6, and 9 months after the application of the restorations. The periodontal condition was evaluated using the plaque index (PI), the bleeding on probing index (BOP), and the probing depth (PD). Appropriate tests were used to perform statistical analyses (α = 0.05).

Results

There was no significant difference between Cention N and RM-GIC regarding the studied variables. However, after the application of the restorations, it was noted that the PI and the PD mean values increased. The average increase after 9 months was 0.06 and 0.34 for PI and PD, respectively, with that of PD being significant. It was also noted that the percentage of positive BOP sites increased at the 1-week follow-up for all study groups and afterward dropped to near preintervention values at the 3-month and later follow-ups.

Conclusions

The two ion-releasing materials Cention N and RM-GIC have a comparable and clinically acceptable effect on the gingival tissue when restoring NCCLs. The combined effect of the gingival retraction cord and the rubber dam clamp on the periodontal tissues might be more important to consider, especially in relation to the probing depth. Future long-term studies are needed to evaluate the effect of Cention N on the subgingival biofilm in comparison with nonion-releasing restorative materials, and subsequently, its effect on gingival inflammation.

Clinical Trial Registration

This clinical trial was registered in clinicaltrial.gov clinical registry under protocol #NCT05593159.

目的本研究旨在从菌斑累积、附着丧失和牙龈炎症等方面评估用于治疗非龋性颈椎病（NCCL）的 Cention N（CN）修复体与树脂改性玻璃离子水泥（RM-GIC）修复体的邻近牙周情况。材料和方法这是一项双盲分口三臂随机对照临床试验。研究臂为 RM-GIC（富士二代 LC）、CN + 粘接系统和 CN + 固位槽。每组包括 25 个修复体。在使用修复体后的 1 周、3、6 和 9 个月进行随访。使用牙菌斑指数（PI）、探诊出血指数（BOP）和探诊深度（PD）对牙周状况进行评估。使用适当的检验进行统计分析（α = 0.05）。结果 Cention N 和 RM-GIC 在研究变量方面没有明显差异。然而，在使用修复体后，我们注意到 PI 和 PD 的平均值有所增加。9 个月后，PI 和 PD 的平均值分别增加了 0.06 和 0.34，其中 PD 显著增加。同时还注意到，在 1 周的随访中，所有研究组的 BOP 阳性点的百分比都有所增加，之后在 3 个月和更长时间的随访中，BOP 阳性点的百分比下降到接近干预前的数值。结论 Cention N 和 RM-GIC 这两种离子释放材料在修复 NCCL 时对牙龈组织的效果相当，临床上可以接受。牙龈牵引带和橡胶坝夹对牙周组织的综合影响可能更值得考虑，尤其是与探诊深度有关的影响。今后还需要进行长期研究，评估 Cention N 与非离子释放修复材料相比对龈下生物膜的影响，以及对牙龈炎症的影响。临床试验注册该临床试验已在 clinicaltrial.gov 临床注册中心注册，注册号为 #NCT05593159。

{"title":"Periodontal Evaluation for a New Alkasite Restorative Material in Noncarious Cervical Lesions: A Randomized-Controlled Clinical Trial","authors":"Khattab Mustafa, Ghaith Alfakhry, Hussam Milly","doi":"10.1002/cre2.70025","DOIUrl":"https://doi.org/10.1002/cre2.70025","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aims to evaluate the periodontal condition adjacent to Cention N (CN) restorations applied for noncarious cervical lesions (NCCL) compared with resin-modified glass ionomer cement (RM-GIC) restorations in terms of plaque accumulation, attachment loss, and gingival inflammation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>This is a double-blind split-mouth three-armed randomized-controlled clinical trial. The study arms are RM-GIC (FUJI II LC), CN + adhesive system, and CN + retentive groove. The study included 25 restorations per arm. Follow-ups were performed at 1 week, 3, 6, and 9 months after the application of the restorations. The periodontal condition was evaluated using the plaque index (PI), the bleeding on probing index (BOP), and the probing depth (PD). Appropriate tests were used to perform statistical analyses (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>There was no significant difference between Cention N and RM-GIC regarding the studied variables. However, after the application of the restorations, it was noted that the PI and the PD mean values increased. The average increase after 9 months was 0.06 and 0.34 for PI and PD, respectively, with that of PD being significant. It was also noted that the percentage of positive BOP sites increased at the 1-week follow-up for all study groups and afterward dropped to near preintervention values at the 3-month and later follow-ups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The two ion-releasing materials Cention N and RM-GIC have a comparable and clinically acceptable effect on the gingival tissue when restoring NCCLs. The combined effect of the gingival retraction cord and the rubber dam clamp on the periodontal tissues might be more important to consider, especially in relation to the probing depth. Future long-term studies are needed to evaluate the effect of Cention N on the subgingival biofilm in comparison with nonion-releasing restorative materials, and subsequently, its effect on gingival inflammation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Trial Registration</h3>\u0000 \u0000 <p>This clinical trial was registered in clinicaltrial.gov clinical registry under protocol #NCT05593159.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 6","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toward Wearables for Bruxism Detection: Voluntary Oral Behaviors Sound Recorded Across the Head Depend on Transducer Placement 开发用于检测磨牙症的可穿戴设备：通过头部记录的自愿口腔行为取决于传感器的位置。

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-22 DOI: 10.1002/cre2.70001

Mohammad Khair Nahhas, Jens Christoph Türp, Philippe Cattin, Nicolas Gerig, Elisabeth Wilhelm, Georg Rauter

Objectives

Bruxism is a parafunctional orofacial behavior. For diagnosis, wearable devices that use sounds as biomarkers can be applied to provide the necessary information. Human beings emit various verbal and nonverbal sounds, making it challenging to identify bruxism-induced sounds. We wanted to investigate whether the acoustic emissions of different oral behaviors have distinctive characteristics and if the placement of the transducer has an impact on recording the sound signals.

Material and Methods

Sounds from five oral behaviors were investigated: jaw clenching, teeth grinding, reading, eating, and drinking. Eight transducers were used; six were attached to the temporal, frontal, and zygomatic bones with the aid of medical tape, and two were integrated into two commercial earphones. The data from 15 participants were analyzed using time-domain energy, spectral flux, and zero crossing rate (ZCR).

Results

In summary, all oral behaviors showed distinct characteristic features except jaw clenching, though there was a peak in the recording, possibly due to tooth tapping, before its expected onset. For teeth grinding, the transducer placement did not have a significant impact (p > 0.05) based on energy, spectral flux, and ZCR. For jaw clenching, the transducer placement had an impact with regard to spectral flux (p < 0.01). For reading and eating, the transducer placement had a significant impact with regard to energy (p < 0.05 for reading, p < 0.01 for eating), spectral flux (p < 0.001 for reading, p < 0.01 for eating), and ZCR (p < 0.001 for both reading and eating). For drinking, the transducer placement only had a significant impact with regard to ZCR (p < 0.01).

Conclusions

We were able to record the sounds of various oral behaviors from different locations on the head. However, the ears were an advantageous location to place the transducer, since they could compensate for various head movements and ear devices are socially tolerable.

目的：磨牙症是一种副功能性口颌行为。在诊断时，可将声音作为生物标记的可穿戴设备可提供必要的信息。人类会发出各种语言和非语言的声音，因此识别磨牙症引起的声音具有挑战性。我们希望研究不同的口腔行为发出的声音是否具有不同的特征，以及传感器的位置是否会对声音信号的记录产生影响：我们调查了五种口腔行为发出的声音：下颌紧咬、磨牙、阅读、进食和饮水。共使用了八个换能器，其中六个用医用胶带粘贴在颞骨、额骨和颧骨上，另外两个集成在两个商用耳机中。使用时域能量、频谱通量和过零率（ZCR）对 15 名参与者的数据进行了分析：总之，除下颌紧握外，所有口腔行为都表现出明显的特征，但在其预期开始前，记录中出现了一个峰值，可能是由于牙齿敲击造成的。对于磨牙，根据能量、频谱通量和 ZCR，换能器的位置没有显著影响（p > 0.05）。对于下颌紧咬，换能器的位置对频谱通量有影响（p 结论：对于下颌紧咬，换能器的位置对频谱通量有影响：我们能够从头部的不同位置记录各种口腔行为的声音。不过，耳朵是放置传感器的一个有利位置，因为耳朵可以补偿头部的各种运动，而且耳部装置在社会上是可以容忍的。

{"title":"Toward Wearables for Bruxism Detection: Voluntary Oral Behaviors Sound Recorded Across the Head Depend on Transducer Placement","authors":"Mohammad Khair Nahhas, Jens Christoph Türp, Philippe Cattin, Nicolas Gerig, Elisabeth Wilhelm, Georg Rauter","doi":"10.1002/cre2.70001","DOIUrl":"10.1002/cre2.70001","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Bruxism is a parafunctional orofacial behavior. For diagnosis, wearable devices that use sounds as biomarkers can be applied to provide the necessary information. Human beings emit various verbal and nonverbal sounds, making it challenging to identify bruxism-induced sounds. We wanted to investigate whether the acoustic emissions of different oral behaviors have distinctive characteristics and if the placement of the transducer has an impact on recording the sound signals.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>Sounds from five oral behaviors were investigated: jaw clenching, teeth grinding, reading, eating, and drinking. Eight transducers were used; six were attached to the temporal, frontal, and zygomatic bones with the aid of medical tape, and two were integrated into two commercial earphones. The data from 15 participants were analyzed using time-domain energy, spectral flux, and zero crossing rate (ZCR).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In summary, all oral behaviors showed distinct characteristic features except jaw clenching, though there was a peak in the recording, possibly due to tooth tapping, before its expected onset. For teeth grinding, the transducer placement did not have a significant impact (<i>p</i> > 0.05) based on energy, spectral flux, and ZCR. For jaw clenching, the transducer placement had an impact with regard to spectral flux (<i>p</i> < 0.01). For reading and eating, the transducer placement had a significant impact with regard to energy (<i>p</i> < 0.05 for reading, <i>p</i> < 0.01 for eating), spectral flux (<i>p</i> < 0.001 for reading, <i>p</i> < 0.01 for eating), and ZCR (<i>p</i> < 0.001 for both reading and eating). For drinking, the transducer placement only had a significant impact with regard to ZCR (<i>p</i> < 0.01).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>We were able to record the sounds of various oral behaviors from different locations on the head. However, the ears were an advantageous location to place the transducer, since they could compensate for various head movements and ear devices are socially tolerable.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142281233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Needle Insertion Angle on Pain During Labial Infiltration Anesthesia of the Anterior Maxilla: A Randomized Clinical Trial 上颌骨前唇浸润麻醉时针头插入角度对疼痛的影响：随机临床试验

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-19 DOI: 10.1002/cre2.70008

Amirhossein Moaddabi, Tahereh Molania, Alireza Arezoumandi, Sahar Ghaedsharaf, Mariangela Cernera, Roya Nikbakht, Parisa Soltani, Gianrico Spagnuolo, Shirin Shahnaseri

Objectives

This study aimed to assess the effect of needle insertion angle on pain during labial infiltration anesthesia in the anterior maxillary region.

Material and Methods

In this parallel-design randomized clinical trial, participants were randomly assigned to four groups for labial infiltration anesthesia of the anterior maxilla. Local anesthesia was performed with needle orientation parallel to the longitudinal axis of the tooth using a conventional syringe (Syringe-0), needle at α angle with a conventional syringe (Syringe-α), computer-controlled local anesthetic delivery (CCLAD) device parallel to the longitudinal axis of the tooth (CCLAD-0), and CCLAD at α angle (CCLAD-α). The heart rate (HR), blood pressure (BP), and respiratory rate (RR) of participants were measured before needle insertion, immediately after needle insertion, and immediately after the injection by a vital signs monitor. The level of pain experienced by participants was quantified using a numerical rating scale (NRS). Data were analyzed by repeated-measures ANOVA and regression models (α = 0.05).

Results

Thirty-six participants aged from 21 to 60 years, with a mean age of 35.36 years were recruited. The mean pain scores were 7.44, 4.67, 2.89, and 0.67 in groups Syringe-0, Syringe-α, CCLAD-0, and CCLAD-α, respectively (p < 0.001). Age and sex had no significant effect on pain scores (p = 0.914 and p = 0.702, respectively). The four groups had no significant difference in vital signs (p > 0.05).

Conclusions

Injection at an α angle and the application of CCLAD can be used in clinical practice to decrease the pain experienced by participants during labial infiltration anesthesia of the anterior maxilla.

Trial Registration

Iranian Registry of Clinical Trials: IRCT20230719058849N1.

目的本研究旨在评估针插入角度对上颌前部唇管浸润麻醉时疼痛的影响。材料和方法在这项平行设计的随机临床试验中，参与者被随机分配到四组，分别进行上颌前牙唇管浸润麻醉。进行局部麻醉时，使用传统注射器（Syringe-0），针头方向与牙齿纵轴平行；使用传统注射器（Syringe-α），针头与牙齿纵轴成 α 角；使用计算机控制的局部麻醉剂给药（CCLAD）装置，针头方向与牙齿纵轴平行（CCLAD-0）；使用计算机控制的局部麻醉剂给药（CCLAD-α）装置，针头与牙齿纵轴成 α 角（CCLAD-α）。参与者的心率（HR）、血压（BP）和呼吸频率（RR）分别在进针前、进针后和注射后立即由生命体征监测仪测量。参与者的疼痛程度通过数字评分量表（NRS）进行量化。数据采用重复测量方差分析和回归模型（α = 0.05）进行分析。结果共招募了 36 名参与者，年龄从 21 岁到 60 岁不等，平均年龄为 35.36 岁。Syringe-0、Syringe-α、CCLAD-0 和 CCLAD-α 组的平均疼痛评分分别为 7.44、4.67、2.89 和 0.67（p < 0.001）。年龄和性别对疼痛评分没有明显影响（分别为 p = 0.914 和 p = 0.702）。四组患者的生命体征无明显差异（p > 0.05）。结论在临床实践中，以 α 角注射和应用 CCLAD 可以减轻参与者在上颌骨前唇浸润麻醉时的疼痛。试验注册伊朗临床试验注册处：IRCT20230719058849N1.

{"title":"Effect of Needle Insertion Angle on Pain During Labial Infiltration Anesthesia of the Anterior Maxilla: A Randomized Clinical Trial","authors":"Amirhossein Moaddabi, Tahereh Molania, Alireza Arezoumandi, Sahar Ghaedsharaf, Mariangela Cernera, Roya Nikbakht, Parisa Soltani, Gianrico Spagnuolo, Shirin Shahnaseri","doi":"10.1002/cre2.70008","DOIUrl":"https://doi.org/10.1002/cre2.70008","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aimed to assess the effect of needle insertion angle on pain during labial infiltration anesthesia in the anterior maxillary region.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>In this parallel-design randomized clinical trial, participants were randomly assigned to four groups for labial infiltration anesthesia of the anterior maxilla. Local anesthesia was performed with needle orientation parallel to the longitudinal axis of the tooth using a conventional syringe (Syringe-0), needle at <i>α</i> angle with a conventional syringe (Syringe-α), computer-controlled local anesthetic delivery (CCLAD) device parallel to the longitudinal axis of the tooth (CCLAD-0), and CCLAD at <i>α</i> angle (CCLAD-<i>α</i>). The heart rate (HR), blood pressure (BP), and respiratory rate (RR) of participants were measured before needle insertion, immediately after needle insertion, and immediately after the injection by a vital signs monitor. The level of pain experienced by participants was quantified using a numerical rating scale (NRS). Data were analyzed by repeated-measures ANOVA and regression models (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Thirty-six participants aged from 21 to 60 years, with a mean age of 35.36 years were recruited. The mean pain scores were 7.44, 4.67, 2.89, and 0.67 in groups Syringe-0, Syringe-<i>α</i>, CCLAD-0, and CCLAD-<i>α</i>, respectively (<i>p</i> < 0.001). Age and sex had no significant effect on pain scores (<i>p</i> = 0.914 and <i>p</i> = 0.702, respectively). The four groups had no significant difference in vital signs (<i>p</i> > 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Injection at an <i>α</i> angle and the application of CCLAD can be used in clinical practice to decrease the pain experienced by participants during labial infiltration anesthesia of the anterior maxilla.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Trial Registration</h3>\u0000 \u0000 <p>Iranian Registry of Clinical Trials: IRCT20230719058849N1.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142275107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Removable Complete Denture on Pro-Oxidant Antioxidant Balance and Redox-Sensitive Inflammation Biomarker NF-ĸB in the Oral Cavity: An Interventional Follow-Up Study 可摘全口义齿对口腔中促氧化剂抗氧化剂平衡和氧化还原敏感性炎症生物标志物 NF-ĸB 的影响：干预性随访研究

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-19 DOI: 10.1002/cre2.70007

Mirjana Bošković, Dušan Sokolović, Saša Stanković, Ivan Ristić, Jordan Popović, Gordana Kocić

Objectives

Oxidative stress, an imbalance between the body's natural antioxidant defenses and the production of reactive oxygen species (ROS), can result in serious oral diseases, including oral cancer, periodontal diseases, and oral lichen planus, through the activation of the redox-sensitive transcription factors and inflammation. The purpose of this study was to assess the potential effects of a removable complete denture on the levels of oxidative stress markers, such as lipid peroxidation (MDA), advanced oxidation protein products (AOPP), and catalase, and the quantitative expression of the redox-sensitive transcription factor NF-κB p65 subunit.

Materials and Methods

This interventional follow-up study enrolled 40 participants of both sexes aged 28–78 years, with a median age of 56 years, where unstimulated saliva was collected before denture placement, immediately after the denture placement, and 24 h, 7 days, and 30 days after the denture placement. The most prominent ROS overproduction was reported on the seventh day (p < 0.05), followed by a significant fall in antioxidative defense.

Results

The NF-κB p65 subunit, whose expression pattern was highest in the same time period on the seventh day, serves as a signaling molecule for redox imbalance due to ROS production. Over the next 30 days, its levels remained moderately increased compared to the basal value, which may influence pro-inflammatory pathways and the integrity of oral tissue components. These alterations may be induced by the dentures, which can produce high pressures on the supporting tissues or by the synthetic materials used for producing the dentures.

Conclusion

Our research may help to clarify the potential pathways by which oxidative stress and redox-sensitive inflammatory mediators, as well as mechanical and chemical irritants, may serve as risk factors for premalignant lesions in the mouth. Further research on this topic is required to understand the molecular mechanisms behind the relationship between inflammation and oral premalignant lesions caused by mechanical and chemical irritation.

目的氧化应激是人体天然抗氧化防御系统与活性氧（ROS）产生之间的失衡，可通过激活氧化还原敏感转录因子和炎症而导致严重的口腔疾病，包括口腔癌、牙周病和口腔扁平苔藓。本研究的目的是评估可摘全口义齿对氧化应激标志物（如脂质过氧化物（MDA）、高级氧化蛋白产物（AOPP）和过氧化氢酶）水平的潜在影响，以及对氧化还原反应敏感的转录因子 NF-κB p65 亚基的定量表达。材料与方法这项干预性随访研究共纳入 40 名参与者，男女不限，年龄在 28-78 岁之间，中位年龄为 56 岁，研究人员在义齿安装前、义齿安装后立即、义齿安装后 24 小时、7 天和 30 天收集未刺激唾液。第七天时，ROS 的过量产生最为明显（p <0.05），随后抗氧化防御能力显著下降。结果 NF-κB p65 亚基的表达模式在第七天的同一时段最高，它是 ROS 产生导致氧化还原失衡的信号分子。在接下来的 30 天中，其水平与基础值相比保持适度增加，这可能会影响促炎途径和口腔组织成分的完整性。这些变化可能是由假牙引起的，因为假牙会对支持组织产生高压力，也可能是由制作假牙的合成材料引起的。结论我们的研究可能有助于阐明氧化应激和氧化还原敏感性炎症介质以及机械和化学刺激物可能成为口腔癌前病变风险因素的潜在途径。要了解炎症与机械和化学刺激引起的口腔恶性病变之间关系背后的分子机制，还需要对这一课题进行进一步的研究。

{"title":"The Influence of Removable Complete Denture on Pro-Oxidant Antioxidant Balance and Redox-Sensitive Inflammation Biomarker NF-ĸB in the Oral Cavity: An Interventional Follow-Up Study","authors":"Mirjana Bošković, Dušan Sokolović, Saša Stanković, Ivan Ristić, Jordan Popović, Gordana Kocić","doi":"10.1002/cre2.70007","DOIUrl":"https://doi.org/10.1002/cre2.70007","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Oxidative stress, an imbalance between the body's natural antioxidant defenses and the production of reactive oxygen species (ROS), can result in serious oral diseases, including oral cancer, periodontal diseases, and oral lichen planus, through the activation of the redox-sensitive transcription factors and inflammation. The purpose of this study was to assess the potential effects of a removable complete denture on the levels of oxidative stress markers, such as lipid peroxidation (MDA), advanced oxidation protein products (AOPP), and catalase, and the quantitative expression of the redox-sensitive transcription factor NF-<i>κ</i>B p65 subunit.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>This interventional follow-up study enrolled 40 participants of both sexes aged 28–78 years, with a median age of 56 years, where unstimulated saliva was collected before denture placement, immediately after the denture placement, and 24 h, 7 days, and 30 days after the denture placement. The most prominent ROS overproduction was reported on the seventh day (<i>p</i> < 0.05), followed by a significant fall in antioxidative defense.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The NF-<i>κ</i>B p65 subunit, whose expression pattern was highest in the same time period on the seventh day, serves as a signaling molecule for redox imbalance due to ROS production. Over the next 30 days, its levels remained moderately increased compared to the basal value, which may influence pro-inflammatory pathways and the integrity of oral tissue components. These alterations may be induced by the dentures, which can produce high pressures on the supporting tissues or by the synthetic materials used for producing the dentures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Our research may help to clarify the potential pathways by which oxidative stress and redox-sensitive inflammatory mediators, as well as mechanical and chemical irritants, may serve as risk factors for premalignant lesions in the mouth. Further research on this topic is required to understand the molecular mechanisms behind the relationship between inflammation and oral premalignant lesions caused by mechanical and chemical irritation.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of the Effects of Different Palatal Morphology on Maxillary Expansion via RME and MSE: A Finite Element Analysis 通过 RME 和 MSE 比较不同腭部形态对上颌骨扩张的影响：有限元分析

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-19 DOI: 10.1002/cre2.70005

Yaohui Pan, Wenjing Peng, Yanyu Wang

Objectives

This study aims to compare and analyze the biomechanical effect and the displacement trend of RME and MSE on the maxillofacial complex under different palatal shapes by using finite element analysis.

Methods

The three-dimensional model of maxillofacial complex was obtained from a computed tomography image of a person with a normal palate. Then, we modified the shape of the palate to obtain the model with a high palate. Additionally, two expander devices were considered. MSE and RME were created and four models were made: Model 1: Normal-palate craniomaxillofacial complex with RME expander; Model 2: Normal-palate craniomaxillofacial complex with MSE expander; Model 3: High-palate craniomaxillofacial complex with RME expander; Model 4: High-palate craniomaxillofacial complex with MSE expander. Then, lateral forced displacement was applied and the analysis results were obtained.

Results

The lateral displacement of the palatal suture of Model 3 is greater than that of Model 1, and the maxilla has more rotation. The crown/root ratio of Model 1 is significantly greater than that of the other three groups. Compared with Model 1, Model 3 has greater stress concentration in the superstructure of the craniomaxillofacial complex. Both of them have greater stress in the anchorage area than Model 2 and Model 4.

Conclusion

Different shapes of the palate interfere with the effects of RME and MSE, and its influence on the stress distribution and displacement of the craniomaxillary complex when using RME is greater than MSE. The lateral displacement of the palatal suture of MSE is significantly larger than that of RME. It is more prone to tipping movement of the anchor teeth using RME under normal palate, and MSE may manage the vertical control better due to the smaller crown/root ratio than RME and intrusive movement of molars.

目的本研究旨在通过有限元分析，比较和分析在不同腭部形状下，RME 和 MSE 对颌面复合体的生物力学效应和位移趋势。方法根据正常腭部的计算机断层扫描图像获得颌面复合体的三维模型。然后，我们修改了腭部的形状，得到了高腭部模型。此外，我们还考虑了两种扩张器装置。我们创建了 MSE 和 RME，并制作了四个模型：模型1：使用RME扩张器的正常腭颅颌面复合体；模型2：使用MSE扩张器的正常腭颅颌面复合体；模型3：使用RME扩张器的高腭颅颌面复合体；模型4：使用MSE扩张器的高腭颅颌面复合体。然后进行侧向强迫位移，得出分析结果。结果型号 3 的腭缝侧向位移大于型号 1，上颌骨旋转幅度更大。模型 1 的牙冠/牙根比明显大于其他三组。与模型 1 相比，模型 3 在颅颌面复合体上部结构中的应力集中程度更高。与模型 2 和模型 4 相比，模型 3 在锚固区的应力更大。结论不同的腭部形状会干扰 RME 和 MSE 的效果，在使用 RME 时，其对颅颌面复合体应力分布和位移的影响大于 MSE。MSE 的腭缝侧向位移明显大于 RME。在上腭正常的情况下，使用RME更容易发生锚牙的倾覆移动，而MSE由于冠根比小于RME和磨牙的侵入性移动，可能会更好地控制垂直方向。

{"title":"Comparison of the Effects of Different Palatal Morphology on Maxillary Expansion via RME and MSE: A Finite Element Analysis","authors":"Yaohui Pan, Wenjing Peng, Yanyu Wang","doi":"10.1002/cre2.70005","DOIUrl":"https://doi.org/10.1002/cre2.70005","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aims to compare and analyze the biomechanical effect and the displacement trend of RME and MSE on the maxillofacial complex under different palatal shapes by using finite element analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The three-dimensional model of maxillofacial complex was obtained from a computed tomography image of a person with a normal palate. Then, we modified the shape of the palate to obtain the model with a high palate. Additionally, two expander devices were considered. MSE and RME were created and four models were made: Model 1: Normal-palate craniomaxillofacial complex with RME expander; Model 2: Normal-palate craniomaxillofacial complex with MSE expander; Model 3: High-palate craniomaxillofacial complex with RME expander; Model 4: High-palate craniomaxillofacial complex with MSE expander. Then, lateral forced displacement was applied and the analysis results were obtained.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The lateral displacement of the palatal suture of Model 3 is greater than that of Model 1, and the maxilla has more rotation. The crown/root ratio of Model 1 is significantly greater than that of the other three groups. Compared with Model 1, Model 3 has greater stress concentration in the superstructure of the craniomaxillofacial complex. Both of them have greater stress in the anchorage area than Model 2 and Model 4.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Different shapes of the palate interfere with the effects of RME and MSE, and its influence on the stress distribution and displacement of the craniomaxillary complex when using RME is greater than MSE. The lateral displacement of the palatal suture of MSE is significantly larger than that of RME. It is more prone to tipping movement of the anchor teeth using RME under normal palate, and MSE may manage the vertical control better due to the smaller crown/root ratio than RME and intrusive movement of molars.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142275106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Vitro Effect of Anodization of Titanium Abutments on Color Parameters and Color Difference of Lithium Disilicate All-Ceramic Crowns 钛基台阳极氧化对二硅酸锂全瓷冠颜色参数和色差的体外影响

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-19 DOI: 10.1002/cre2.70002

Sotude Khorshidi, Arash Zarbakhsh, Shirin Lawaf, Shaghayegh Golalipour, Maryam Sayyari, Alireza Mahmoudi Nahavandi

Objective

This study assessed the effect of the anodization of titanium abutments on the color parameters and color difference of lithium disilicate (LDS) all-ceramic crowns.

Materials and Methods

In this study, 19 straight abutments were divided into two groups: anodized (n = 9) and non-anodized control (n = 9), with one hybrid zirconia abutment as a reference. Anodization was achieved by applying 63 V energy using seven 9 V flat batteries in series, with an electrolyte solution comprising 1 g trisodium phosphate in 250 mL distilled water for 5 s, resulting in a gold-yellow color. Abutments were then scanned, and full-contour monolithic IPS e.max maxillary central incisor crowns were fabricated with 2 mm thickness and glazed. Reflectance was measured using a spectroradiometer, and color coordinates (L*, a*, b*, h*, and C*) were calculated using CS-10W software. Color differences of the crowns in both groups were quantified using the CIEDE2000 (ΔE₀₀) color difference formula and analyzed by t-test (α = 0.05) compared to the standard sample.

Results

The L*, a*, b*, and c* parameters in anodized abutments were significantly higher than those in non-anodized abutments, while the h* parameter in anodized abutments was significantly lower than that in non-anodized abutments (p < 0.001 for all). There was a significant difference in ΔE₀₀ of the two groups (p = 0.043).

Conclusion

Anodization of titanium abutments improved the color parameters of LDS all-ceramic crowns and significantly decreased their ΔE compared with non-anodized abutments.

目的本研究评估了钛基台阳极氧化对二硅酸锂（LDS）全瓷牙冠颜色参数和色差的影响。材料和方法在这项研究中，19 个直基台被分为两组：阳极氧化组（n = 9）和非阳极氧化对照组（n = 9），还有一个混合氧化锆基台作为参照。阳极氧化是通过使用七节串联的 9 V 平板电池，在 250 mL 蒸馏水中加入 1 g 磷酸三钠的电解质溶液，施加 63 V 的能量，持续 5 s，使其呈现金黄色。然后对基台进行扫描，制作厚度为 2 毫米的全轮廓整体式 IPS e.max 中切牙牙冠并上釉。使用分光辐射计测量反射率，并使用 CS-10W 软件计算色坐标（L*、a*、b*、h* 和 C*）。使用 CIEDE2000（ΔE00）色差公式量化两组牙冠的色差，并与标准样本进行 t 检验（α = 0.05）分析。结果阳极氧化基台的 L*、a*、b* 和 c* 参数明显高于非阳极氧化基台，而阳极氧化基台的 h* 参数明显低于非阳极氧化基台（均为 p <0.001）。两组的 ΔE00 存在明显差异（p = 0.043）。结论与未经阳极氧化处理的基台相比，钛基台阳极氧化处理可改善 LDS 全瓷冠的颜色参数，并显著降低其 ΔE。

{"title":"In Vitro Effect of Anodization of Titanium Abutments on Color Parameters and Color Difference of Lithium Disilicate All-Ceramic Crowns","authors":"Sotude Khorshidi, Arash Zarbakhsh, Shirin Lawaf, Shaghayegh Golalipour, Maryam Sayyari, Alireza Mahmoudi Nahavandi","doi":"10.1002/cre2.70002","DOIUrl":"https://doi.org/10.1002/cre2.70002","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This study assessed the effect of the anodization of titanium abutments on the color parameters and color difference of lithium disilicate (LDS) all-ceramic crowns.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>In this study, 19 straight abutments were divided into two groups: anodized (<i>n</i> = 9) and non-anodized control (<i>n</i> = 9), with one hybrid zirconia abutment as a reference. Anodization was achieved by applying 63 V energy using seven 9 V flat batteries in series, with an electrolyte solution comprising 1 g trisodium phosphate in 250 mL distilled water for 5 s, resulting in a gold-yellow color. Abutments were then scanned, and full-contour monolithic IPS e.max maxillary central incisor crowns were fabricated with 2 mm thickness and glazed. Reflectance was measured using a spectroradiometer, and color coordinates (<i>L</i>*, <i>a</i>*, <i>b</i>*, <i>h</i>*, and <i>C</i>*) were calculated using CS-10W software. Color differences of the crowns in both groups were quantified using the CIEDE2000 (Δ<i>E</i><sub>00</sub>) color difference formula and analyzed by <i>t</i>-test (<i>α</i> = 0.05) compared to the standard sample.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The <i>L</i>*, <i>a</i>*, <i>b</i>*, and <i>c</i>* parameters in anodized abutments were significantly higher than those in non-anodized abutments, while the <i>h</i>* parameter in anodized abutments was significantly lower than that in non-anodized abutments (<i>p</i> < 0.001 for all). There was a significant difference in Δ<i>E</i><sub>00</sub> of the two groups (<i>p</i> = 0.043).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Anodization of titanium abutments improved the color parameters of LDS all-ceramic crowns and significantly decreased their Δ<i>E</i> compared with non-anodized abutments.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Knowledge and Attitude of General Dentists, Senior Dental Students, and Orthodontic Residents Toward Obstructive Sleep Apnea 普通牙科医生、高年级牙科学生和正畸专业住院医师对阻塞性睡眠呼吸暂停的认识和态度

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-18 DOI: 10.1002/cre2.931

Mina Shekarian, Masood Feizbakhsh, Mehdi Rafie

Objective

The main objective of this study was to compare the knowledge and attitude of general dentists, senior dental students, and orthodontic residents toward obstructive sleep apnea (OSA).

Materials and Methods

A questionnaire was designed and administered among 73 senior dental students, 84 general dentists, and 50 orthodontic residents. The questionnaire asked for demographic information of the participants and assessed their knowledge and attitude toward OSA. The validity and reliability of the questionnaire were confirmed by experts. Data were analyzed by the Kruskal−Wallis and Bonferroni tests using SPSS (α = 0.05).

Results

The mean knowledge scores of general dentists and senior dental students were significantly lower than those of orthodontic residents (p < 0.001). However, there was no significant difference in the knowledge score of senior dental students and general dentists (p = 1). The mean knowledge score was significantly higher in dentists with 1–3 years of professional clinical experience (p = 0.02). The knowledge score was the highest in dentists working in private clinics followed by private offices and public clinics. The mean attitude score was the highest in orthodontic residents followed by general dentists and dental students. There was no significant difference in attitude based on the attended university, age, or time of graduation.

Conclusion

According to the results, general dentists had insufficient knowledge about OSA, which could result in under-diagnosis or misdiagnosis of patients with OSA. This finding highlights the need for further education and training for dentists to properly identify and refer OSA patients to orthodontists or sleep specialists.

目的本研究的主要目的是比较普通牙科医生、高年级牙科学生和正畸住院医师对阻塞性睡眠呼吸暂停（OSA）的认识和态度。材料和方法设计了一份调查问卷，并对 73 名高年级牙科学生、84 名普通牙科医生和 50 名正畸住院医师进行了问卷调查。问卷调查了参与者的人口统计学信息，并评估了他们对 OSA 的认识和态度。问卷的有效性和可靠性得到了专家的确认。数据采用 SPSS 进行 Kruskal-Wallis 和 Bonferroni 检验（α = 0.05）。结果普通牙医和牙科高年级学生的平均知识得分明显低于正畸住院医师（p <0.001）。然而，牙科高年级学生和普通牙科医生的知识得分没有明显差异（p = 1）。拥有 1-3 年专业临床经验的牙科医生的平均知识得分明显更高（p = 0.02）。在私人诊所工作的牙医的知识得分最高，其次是私人诊所和公立诊所的牙医。正畸科住院医师的平均态度得分最高，其次是普通牙医和牙科学生。就读大学、年龄或毕业时间在态度上没有明显差异。结论根据研究结果，普通牙医对 OSA 的认识不足，这可能导致对 OSA 患者的诊断不足或误诊。这一结果突出表明，有必要对牙医进行进一步的教育和培训，以正确识别 OSA 患者并将其转诊给正畸医生或睡眠专科医生。

{"title":"Knowledge and Attitude of General Dentists, Senior Dental Students, and Orthodontic Residents Toward Obstructive Sleep Apnea","authors":"Mina Shekarian, Masood Feizbakhsh, Mehdi Rafie","doi":"10.1002/cre2.931","DOIUrl":"https://doi.org/10.1002/cre2.931","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>The main objective of this study was to compare the knowledge and attitude of general dentists, senior dental students, and orthodontic residents toward obstructive sleep apnea (OSA).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>A questionnaire was designed and administered among 73 senior dental students, 84 general dentists, and 50 orthodontic residents. The questionnaire asked for demographic information of the participants and assessed their knowledge and attitude toward OSA. The validity and reliability of the questionnaire were confirmed by experts. Data were analyzed by the Kruskal−Wallis and Bonferroni tests using SPSS (<i>α </i>= 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The mean knowledge scores of general dentists and senior dental students were significantly lower than those of orthodontic residents (<i>p</i> < 0.001). However, there was no significant difference in the knowledge score of senior dental students and general dentists (<i>p</i> = 1). The mean knowledge score was significantly higher in dentists with 1–3 years of professional clinical experience (<i>p</i> = 0.02). The knowledge score was the highest in dentists working in private clinics followed by private offices and public clinics. The mean attitude score was the highest in orthodontic residents followed by general dentists and dental students. There was no significant difference in attitude based on the attended university, age, or time of graduation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>According to the results, general dentists had insufficient knowledge about OSA, which could result in under-diagnosis or misdiagnosis of patients with OSA. This finding highlights the need for further education and training for dentists to properly identify and refer OSA patients to orthodontists or sleep specialists.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.931","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Vitro Fracture Strength of Primary Canine Teeth Reinforced With Prefabricated and Customized Fiber-Reinforced Post Systems 用预制和定制纤维加固桩系统加固的犬原牙的体外断裂强度

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research

Pub Date : 2024-09-18 DOI: 10.1002/cre2.930

Faeze Behzadpour, Nilgoon Pasdar, Ghazaleh Ahmadizenouz, Ali Bijani

Objective

The demand for esthetics has increased in today's world and most parents prefer to preserve their children's primary anterior teeth until their natural exfoliation. However, an intracanal post is required to provide retention for reconstruction of severely damaged anterior teeth due to caries or trauma. Various materials and methods may be used for the fabrication of intracanal posts. This study assessed the fracture strength and fracture mode of primary canine teeth reconstructed with prefabricated and customized polyethylene and glass fiber posts.

Materials and Methods

This in vitro study evaluated 60 extracted primary canine teeth in four groups (n = 15). After pulpectomy and post space preparation with 4 mm depth, composite resin post, prefabricated glass fiber post (Whitepost), customized glass fiber post (Interlig), or customized polyethylene fiber post (Ribbond) were placed in the root canals to provide retention, and the tooth crown was restored with bulk-fill composite resin. The fracture strength was then measured in a universal testing machine. The fracture mode was also evaluated visually.

Results

The mean fracture strength was 22.45 ± 5.06, 33.10 ± 8.5, 30.20 ± 7.33, and 32.61 ± 5.73 N/mm² in the composite resin post, Whitepost, Interlig, and Ribbond groups, respectively. The fracture strength was significantly lower in the composite group than in the remaining three groups (p = 0.000). No other significant differences were found (p > 0.05). Also, no significant difference was observed among the study groups in the fracture mode (p = 0.241).

Conclusion

The composite resin post yielded a significantly lower fracture strength than the prefabricated and customized glass and polyethylene fiber posts, but the fracture mode was not significantly different among the four groups.

目的当今世界对美观的要求越来越高，大多数家长都希望保留孩子的初级前牙，直到其自然脱落。然而，在重建因龋齿或外伤而严重受损的前牙时，需要使用龋内桩来提供固位。制作龋内桩可使用多种材料和方法。本研究评估了使用预制和定制的聚乙烯和玻璃纤维柱重建的犬基牙的断裂强度和断裂模式。材料和方法这项体外研究评估了四组 60 颗拔出的犬基牙（n = 15）。在进行髓腔切除术和深度为 4 毫米的桩间隙预备后，将复合树脂桩、预制玻璃纤维桩（Whitepost）、定制玻璃纤维桩（Interlig）或定制聚乙烯纤维桩（Ribbond）植入根管以提供固位，并用大量填充的复合树脂修复牙冠。然后在万能试验机上测量断裂强度。还对断裂模式进行了目测评估。结果复合树脂桩组、Whitepost 组、Interlig 组和 Ribbond 组的平均断裂强度分别为 22.45 ± 5.06、33.10 ± 8.5、30.20 ± 7.33 和 32.61 ± 5.73 N/mm2。复合树脂组的断裂强度明显低于其余三组（p = 0.000）。没有发现其他明显差异（p > 0.05）。此外，各研究组在断裂模式上也没有发现明显差异（p = 0.241）。结论复合树脂桩的断裂强度明显低于预制和定制的玻璃纤维和聚乙烯纤维桩，但四组之间的断裂模式没有明显差异。

{"title":"In Vitro Fracture Strength of Primary Canine Teeth Reinforced With Prefabricated and Customized Fiber-Reinforced Post Systems","authors":"Faeze Behzadpour, Nilgoon Pasdar, Ghazaleh Ahmadizenouz, Ali Bijani","doi":"10.1002/cre2.930","DOIUrl":"https://doi.org/10.1002/cre2.930","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>The demand for esthetics has increased in today's world and most parents prefer to preserve their children's primary anterior teeth until their natural exfoliation. However, an intracanal post is required to provide retention for reconstruction of severely damaged anterior teeth due to caries or trauma. Various materials and methods may be used for the fabrication of intracanal posts. This study assessed the fracture strength and fracture mode of primary canine teeth reconstructed with prefabricated and customized polyethylene and glass fiber posts.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>This in vitro study evaluated 60 extracted primary canine teeth in four groups (<i>n</i> = 15). After pulpectomy and post space preparation with 4 mm depth, composite resin post, prefabricated glass fiber post (Whitepost), customized glass fiber post (Interlig), or customized polyethylene fiber post (Ribbond) were placed in the root canals to provide retention, and the tooth crown was restored with bulk-fill composite resin. The fracture strength was then measured in a universal testing machine. The fracture mode was also evaluated visually.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The mean fracture strength was 22.45 ± 5.06, 33.10 ± 8.5, 30.20 ± 7.33, and 32.61 ± 5.73 N/mm<sup>2</sup> in the composite resin post, Whitepost, Interlig, and Ribbond groups, respectively. The fracture strength was significantly lower in the composite group than in the remaining three groups (<i>p</i> = 0.000). No other significant differences were found (<i>p</i> > 0.05). Also, no significant difference was observed among the study groups in the fracture mode (<i>p</i> = 0.241).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The composite resin post yielded a significantly lower fracture strength than the prefabricated and customized glass and polyethylene fiber posts, but the fracture mode was not significantly different among the four groups.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.930","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142275059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0