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Evaluation of Solubility, and Volumetric and Morphological Alterations of Bioceramic Filling Material for Primary Teeth: A New Methodological Approach. 评估基牙生物陶瓷填充材料的溶解性、体积和形态变化:一种新的方法论。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-06-24 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5945033
Víctor M Ochoa-Rodríguez, Hernán Coaguila-Llerena, Leandro Fernandes, Ana B B Solcia, Juliane M Guerreiro-Tanomaru, Mário Tanomaru-Filho, Gisele Faria

Objective: To evaluate the solubility and the volumetric and morphological alterations of bioceramic filling material (Bio-CP) for primary teeth.

Materials and methods: Bio-CP, Calen thickened with zinc oxide (Calen-ZO), and with zinc oxide eugenol (ZOE) were placed in 1- or 2-mm-diameter polyethylene tubes and immersed in water or phosphate-buffered saline (PBS) for 30 days. The solubility (mass loss) was assessed using methodology modified from ISO 6876. Filling capacity, volumetric changes, and presence of voids were assessed by microcomputed tomography (micro-CT). The surface distribution of the chemical elements and the crystalline phases was evaluated by energy scattering X-ray scanning electron microscopy (SEM-EDX) and X-ray diffraction (XRD) to detect hydroxyapatite precipitate and components. The Shapiro-Wilk, Kruskal-Wallis, and Dunn's or two-way ANOVA and Tukey post hoc test were used (α = 0.05).

Results: The solubility was ZOE > Calen-ZO = Bio-CP. Calen-ZO and Bio-CP were more soluble in water than in PBS. All the materials showed greater solubility in 2-mm tube diameter in both PBS and distilled water, except for Bio-CP in distilled water, which showed no difference between both tube diameters (1 and 2 mm). Only Calen-ZO and ZOE were analyzed by micro-CT, because Bio-CP separated into two phases during scanning. Calen-ZO had greater volumetric loss and presence of voids than ZOE in water, but there was no difference in PBS. The hydroxyapatite precipitate on the surface of Bio-CP and Calen-ZO was detected after immersion in PBS.

Conclusion: Although Bio-CP had acceptable solubility and filling capacity, its composition did not allow a proper volumetric and void assessment. From a clinical perspective, Bio-CP has the potential to become a suitable material for root canal filling in primary teeth. Nonetheless, its composition must first be revised to achieve better chemical stability prior to its recommendation.

目的评估用于基牙的生物陶瓷填充材料(Bio-CP)的溶解性、体积和形态变化:将 Bio-CP、氧化锌增稠的 Calen(Calen-ZO)和氧化锌丁香酚(ZOE)放入直径为 1 毫米或 2 毫米的聚乙烯管中,在水或磷酸盐缓冲盐水(PBS)中浸泡 30 天。溶解度(质量损失)采用 ISO 6876 中修改过的方法进行评估。填充能力、体积变化和空隙的存在通过微计算机断层扫描(micro-CT)进行评估。通过能量散射 X 射线扫描电子显微镜(SEM-EDX)和 X 射线衍射(XRD)评估了化学元素和结晶相的表面分布,以检测羟基磷灰石沉淀和成分。采用 Shapiro-Wilk、Kruskal-Wallis、Dunn's 或双向方差分析和 Tukey 后检验(α = 0.05):溶解度为 ZOE > Calen-ZO = Bio-CP。Calen-ZO 和 Bio-CP 在水中的溶解度高于在 PBS 中的溶解度。除了 Bio-CP 在蒸馏水中的溶解度在两种管径(1 毫米和 2 毫米)中没有差异外,所有材料在 2 毫米管径的 PBS 和蒸馏水中的溶解度都更大。只有 Calen-ZO 和 ZOE 通过显微 CT 进行了分析,因为 Bio-CP 在扫描过程中分成了两相。与 ZOE 相比,Calen-ZO 在水中的体积损失更大,空隙也更多,但在 PBS 中没有差异。将 Bio-CP 和 Calen-ZO 浸入 PBS 后,可在其表面检测到羟基磷灰石沉淀:结论:虽然 Bio-CP 的溶解度和填充能力可以接受,但其成分无法进行适当的体积和空隙评估。从临床角度来看,Bio-CP 有可能成为一种适用于基牙根管充填的材料。不过,在推荐使用之前,必须首先对其成分进行修改,以获得更好的化学稳定性。
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引用次数: 0
Adults with Treacher Collins Syndrome Share Comparable 3D Upper Airway Dimensions with Nonsyndromic Individuals. 特雷撤-科林斯综合征成人与非综合征患者的三维上气道尺寸相当。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-06-18 eCollection Date: 2024-01-01 DOI: 10.1155/2024/6545790
Renan Jhordan Mettelziefen Dos Inocentes, Alexandre de Almeida Ribeiro, Maria Noel Marzano-Rodrigues, Marília Sayako Yatabe-Ioshida, Ivy Kiemle Trindade-Suedam

Purpose: Sleep apnea symptoms, such as snoring and daytime somnolence, are commonly observed in individuals with Treacher Collins Syndrome (TCS) and may be related to airway obstruction due to micro- and retro-gnathia. This study aims to three-dimensionally evaluate the upper airway using cone-beam computed tomography (CBCT) exams of adolescents (TCS-ADOL) and adults (TCS-ADUL) with TCS compared to a nonsyndromic group (CON).

Materials and methods: Twenty-six CBCT exams were divided into three groups: TCS-ADOL (n = 7) (13.14 ± 1.67 years): CBCT exams of TCS adolescents; TCS-ADUL (n = 10) (21.80 ± 4.39 years): CBCT exams of TCS adults; and CON (n = 9) (25.33 ± 8.57 years): CBCT exams of adult nonsyndromic individuals with Class II skeletal pattern. The variables analyzed were (1) total upper airway volume; (2) nasal cavity volume; (3) total pharyngeal volume; (4) nasopharyngeal volume; (5) oropharyngeal volume; (6) pharyngeal minimal cross-sectional area; (7) pharyngeal length; and (8) pharyngeal depth. Scans were analyzed by two examiners, and intra- and inter-rater agreement was calculated. A p-value of ≤0.05 was considered significant.

Results: Although not statistically significant, the TCS-ADUL group showed decreased airway volume and minimal cross-sectional areas compared to the CON group. There were also significant differences between TCS-ADOL and TCS-ADUL, with significantly lower airway volumes in the TCS-ADOL group. Strong positive correlations were found between certain airway measurements in the TCS-ADOL group, which were not observed in adults.

Conclusions: The upper airways of adults with TCS are dimensionally similar to those of nonsyndromic individuals, despite absolute value reductions found in the syndromic group. The reduced airway in the adolescent population suggests significant potential for growth, mainly in pharyngeal dimensions.

目的:特雷撤-科林斯综合征(TCS)患者通常会出现打鼾和白天嗜睡等睡眠呼吸暂停症状,这可能与小颌畸形和后颌畸形导致的气道阻塞有关。本研究旨在通过锥束计算机断层扫描(CBCT)对患有特雷撤-科林斯症候群的青少年(TCS-ADOL)和成人(TCS-ADUL)的上呼吸道进行三维评估,并与非综合征组(CON)进行对比:26例CBCT检查分为三组:TCS-ADOL (n = 7) (13.14 ± 1.67 岁):TCS青少年CBCT检查;TCS-ADUL(n = 10)(21.80 ± 4.39岁):TCS-ADUL(n = 10)(21.80 ± 4.39 岁):TCS 成人的 CBCT 检查;以及 CON(n = 9)(25.33 ± 8.57 岁):对具有 II 类骨骼模式的非综合征成人进行 CBCT 检查。分析的变量包括:(1) 上气道总容积;(2) 鼻腔容积;(3) 咽部总容积;(4) 鼻咽容积;(5) 口咽容积;(6) 咽部最小横截面积;(7) 咽部长度;(8) 咽部深度。由两名检查人员对扫描结果进行分析,并计算评分者内部和评分者之间的一致性。P值≤0.05为差异显著:尽管没有统计学意义,但与 CON 组相比,TCS-ADUL 组的气道容积和最小横截面积均有所减少。TCS-ADOL和TCS-ADUL之间也存在显著差异,TCS-ADOL组的气道容积明显更小。在TCS-ADOL组的某些气道测量值之间发现了很强的正相关性,而这在成人中没有观察到:结论:患有 TCS 的成年人的上气道尺寸与非综合征患者相似,尽管在综合征组中发现了绝对值降低。青少年群体的气道缩小表明他们有很大的生长潜力,主要是咽部的尺寸。
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引用次数: 0
Cardiovascular and Vector-Cardiographic Effects of Articaine Anesthesia with Epinephrine. 阿替卡因与肾上腺素麻醉对心血管和矢量心电图的影响
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-06-14 eCollection Date: 2024-01-01 DOI: 10.1155/2024/8610423
Christoph Pökel, Antina Schulze, Martin Busse

The aim was to investigate the vector-cardiographic effects in patients submitted to dental extraction under local anesthesia. Twenty-one patients aged 36.6 ± 12.4 years with a clinical and radiographic indication of mandibular or maxillary tooth extraction were enrolled. The intervention was a local or mandibular nerve block anesthesia with 4% articaine hydrochloride containing epinephrine (1 : 100,000; 40 mg/ml + 10 μg/ml). Blood pressure (BP), heart rate (HR), pulse wave transit time, and vector-cardiography data were recorded throughout 3 min before and 5 min after injection. QRS- and T-wave area under the curve (QRS AUC/T AUC) were calculated from the X/Y/Z QRS-vector or T-vector. T-wave amplitude (T AM), T AUC values, and diastolic BP decreased, and HR significantly increased 4 min after injection. A transient moderate HR drop and a corresponding small increase in T AM and T AUC immediately after the injection procedure may be explained by a decreased sympathetic tone due to psychological relief. In dental anesthesia, the systemic epinephrine effects are represented by a decrease in T AUC. These effects are most pronounced in the X- and Y-leads. The 3D determination of vector planes or amplitudes is a simple method to register the sympathetic tone in local anesthesia independently of possible effects on T-wave characteristics in single leads. In conclusion, T-wave determination may help to detect even small increases in systemic adrenaline concentration in case of accidental intravascular injection. At the same time, full rhythm and spatial ischemia control is provided.

目的是研究在局部麻醉下拔牙患者的向量心电图效应。21 名患者的年龄为 36.6 ± 12.4 岁,具有下颌或上颌拔牙的临床和影像学指征。使用含肾上腺素(1:100,000;40 毫克/毫升 + 10 微克/毫升)的 4% 盐酸阿替卡因进行局部或下颌神经阻滞麻醉。注射前 3 分钟和注射后 5 分钟全程记录血压(BP)、心率(HR)、脉搏波转运时间和矢量心电图数据。根据 X/Y/Z QRS 向量或 T 向量计算 QRS 和 T 波曲线下面积(QRS AUC/T AUC)。注射 4 分钟后,T 波振幅(T AM)、T AUC 值和舒张压下降,心率显著上升。注射过程结束后,心率立即出现短暂的中度下降,T AM 和 T AUC 也相应出现小幅上升,这可能是由于心理舒缓导致交感神经张力降低所致。在牙科麻醉中,全身性肾上腺素效应表现为 T AUC 的降低。这些影响在 X 向和 Y 向最为明显。矢量平面或振幅的三维测定是在局部麻醉中记录交感神经张力的一种简单方法,与可能对单导联 T 波特征的影响无关。总之,T 波测定有助于在发生意外血管内注射时检测全身肾上腺素浓度的微小增加。同时,还能提供完整的节律和空间缺血控制。
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引用次数: 0
The Relationship between High-Intensity Physical Activity and Traumatic Dental Injury among Young Adults in South Korea. 高强度体育锻炼与韩国年轻人牙齿外伤之间的关系。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-06-10 eCollection Date: 2024-01-01 DOI: 10.1155/2024/9678841
Ji-Young Son, Dong-Hun Han

Materials and methods: This study analyzed data collected from the 5th National Health and Nutrition Examination Survey (KNHANES V:2010-2012). The total number of participants in the 5th KNAHANES was 5,383 young adults aged 19-39 years, selected from 25,534 participants. Logistic regression analysis was performed using socioeconomic status (sex, age, education level, and income), physical activity intensity (vigorous and moderate), frequency of vigorous and moderate physical activity (days per week), and traumatic dental injuries due to exercise.

Results: A total of 5,383 participants were included in the analysis. High-intensity exercisers had a statistically different association with traumatic dental injuries due to exercise. In all models, high-intensity exercisers had more traumatic dental injuries than moderate-intensity exercisers, and participants who exercised vigorously 4 or more days per week had a significantly higher prevalence experience of traumatic dental injuries. Among adults in their 20s, men, college attendees, and those with higher incomes, the prevalence of exercising vigorously 4 or more days per week was higher.

Conclusions: Among young adults, a higher frequency of high-intensity physical activity was associated with a higher prevalence experience of traumatic tooth injury due to exercise compared with no physical activity.

材料与方法:本研究分析了第五次全国健康与营养调查(KNHANES V:2010-2012)收集的数据。第 5 次全国健康与营养状况调查从 25,534 名参与者中选出了 5,383 名 19-39 岁的年轻成年人。利用社会经济状况(性别、年龄、教育水平和收入)、体育锻炼强度(剧烈和中等)、剧烈和中等体育锻炼频率(每周天数)以及运动导致的牙外伤进行了逻辑回归分析:共有 5,383 人参与了分析。高强度运动者与运动造成的牙外伤之间存在统计学差异。在所有模型中,高强度运动者比中等强度运动者有更多的牙外伤,每周剧烈运动4天或4天以上的参与者的牙外伤发生率明显更高。在20多岁的成年人、男性、大学在校生和收入较高的人群中,每周剧烈运动4天或4天以上的比例更高:结论:在年轻人中,与不参加体育锻炼相比,参加高强度体育锻炼的频率越高,因运动而导致牙齿外伤的发生率就越高。
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引用次数: 0
Critical Evaluation of Global Infection Prevention and Control Guidelines for Dentistry Published during the First 2 Years of the COVID-19 Pandemic. 对 COVID-19 大流行头两年发布的全球牙科感染预防和控制指南进行严格评估。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-06-06 eCollection Date: 2024-01-01 DOI: 10.1155/2024/6611105
Khlood Alkurdi, Rowaina Mansouri, Aseel Ismail, Noha Seoudi

Objectives: The outbreak of the coronavirus disease (COVID-19) encouraged immediate actions by governments and healthcare associations across the world to flatten the curve and prevent health systems from being overburdened. As dentistry comprises aerosol-generating procedures (AGPs), which could increase the risk of infection, various guidelines were issued for dental services which focused on infection prevention and control (IPC) measures for COVID-19. This systematic review focuses on dental IPC guidelines, with the aim of comparing these guidelines against a gold standard.

Method: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 checklist was employed. Predefined inclusion and exclusion criteria were constructed. Information sources comprised Google Scholar, PubMed, and a manual search from December 2019 to December 2021. The Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument was used. Consensus scoring was applied for all guidelines.

Results: A total 61 guidelines were included in the review. The UK national guideline was used as a gold standard as it ranked the highest AGREE score (75 out of 84) and thus was established for comparison with each of the included guidelines. Overall, 40% of the included guidelines had a high consensus score in relation to the UK national guideline.

Conclusion: This systematic review highlighted the variability in content and quality of advice given by different organizations in response to the COVID-19 pandemic in their efforts to reduce SARS-CoV-2 transmission in dentistry. Establishing a single worldwide fast-acting dental organization would ensure that high-quality standardized guidance is available, to enhance health equality and worldwide dental clinical standards.

目标:冠状病毒疾病(COVID-19)的爆发促使世界各国政府和医疗保健协会立即采取行动,拉平曲线,防止医疗系统负担过重。由于牙科包括可能增加感染风险的气溶胶产生程序 (AGP),因此针对 COVID-19 发布了各种以感染预防和控制 (IPC) 措施为重点的牙科服务指南。本系统性综述的重点是牙科 IPC 指南,目的是将这些指南与黄金标准进行比较:方法:采用 2020 年系统综述和元分析首选报告项目(PRISMA)清单。制定了预定义的纳入和排除标准。信息来源包括谷歌学术、PubMed 和 2019 年 12 月至 2021 年 12 月的人工搜索。使用了研究与评估指南评估(AGREE II)工具。对所有指南进行了共识评分:结果:共有 61 项指南被纳入审查范围。英国国家指南被用作黄金标准,因为它的 AGREE 分数最高(84 分中的 75 分),因此被用来与每份纳入的指南进行比较。总体而言,40% 的纳入指南与英国国家指南的共识得分较高:本系统综述强调了不同组织在应对 COVID-19 大流行时为减少 SARS-CoV-2 在牙科的传播而提供的建议在内容和质量上的差异。建立一个单一的全球性快速反应牙科组织将确保提供高质量的标准化指导,以提高健康平等和全球牙科临床标准。
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引用次数: 0
Assessment of Anatomical Dentin Thickness in Mandibular First Molar: An In Vivo Cone-Beam Computed Tomographic Study. 下颌第一磨牙牙本质厚度的解剖学评估:活体锥形束计算机断层扫描研究
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-05-30 eCollection Date: 2024-01-01 DOI: 10.1155/2024/8823070
Sahil Choudhari, Kavalipurapu Venkata Teja, Sindhu Ramesh, Jerry Jose, Mariangela Cernera, Parisa Soltani, Emmanuel João Nogueira Leal da Silva, Gianrico Spagnuolo

Aim: To determine the minimum dentin thickness in the mesial and distal walls of the mesiobuccal (MB) and mesiolingual (ML) canals of the mandibular first molars using cone-beam computed tomography (CBCT).

Materials and methods: CBCT examinations of 624 mandibular first molars from an Indian subpopulation were analyzed. The mesial and distal minimum dentin thickness was evaluated in 1 mm intervals apical to the furcation area. Independent t-test was used to analyze the data (α = 0.05). Using Cohen's kappa coefficient, the interexaminer and intraexaminer reliability was evaluated.

Results: The mesial dentin thickness was significantly higher than the distal dentin thickness for MB and ML canals (P=0.01). The average dentin thickness in the distal and mesial plane of the MB canal was 1.15 ± 0.15 mm and 1.52 ± 0.19 mm at the 1 mm level and 0.83 ± 0.13 and 1.08 ± 0.18 at the 5 mm level, respectively. For the ML canal, the average dentin thickness in the distal plane and the mesial plane was 1.24 ± 0.18 mm and 1.44 ± 0.21 at the 1 mm level and 0.91 ± 0.16 and 1.01 ± 0.17 at the 5 mm level, respectively. Statistical analysis between the MB and ML canals showed significant differences in the dentin thickness at 4 and 5 mm levels in both the distal and the mesial planes (P=0.01). In more than 85% of the cases, the minimum dentin thickness was seen at the 5 mm level in both the distal and mesial planes in MB and ML canals.

Conclusion: The distal planes of the mesiolingual and mesiobuccal canals were thinner in most cases, making the distal surface more prone to iatrogenic perforations. Considerably, at 4 and 5 mm from the furcation, the distal wall was significantly thinner than the mesial walls. Understanding the anatomy of the danger zone in the mesial roots of the mandibular first molars may serve to minimize the risk of endodontic mishaps such as strip perforations.

目的:使用锥形束计算机断层扫描(CBCT)确定下颌第一磨牙中颊(MB)和中舌(ML)管中侧壁和远侧壁的最小牙本质厚度:分析了来自印度亚群的 624 颗下颌第一磨牙的 CBCT 检查结果。在窝沟区的顶端,以 1 毫米为间隔,评估中、远端最小牙本质厚度。采用独立 t 检验分析数据(α = 0.05)。使用 Cohen's kappa 系数评估检查者之间和检查者内部的可靠性:MB 和 ML 导管的牙本质中层厚度明显高于牙本质远层厚度(P=0.01)。MB 管远端和中轴平面的平均牙本质厚度在 1 mm 水平分别为 1.15 ± 0.15 mm 和 1.52 ± 0.19 mm,在 5 mm 水平分别为 0.83 ± 0.13 和 1.08 ± 0.18。对于 ML 管,远端平面和中端平面的平均牙本质厚度在 1 mm 水平分别为 1.24 ± 0.18 mm 和 1.44 ± 0.21 mm,在 5 mm 水平分别为 0.91 ± 0.16 和 1.01 ± 0.17。对 MB 和 ML 冠状沟的统计分析显示,在 4 和 5 mm 水平的牙本质厚度上,远端和中端的平面都存在显著差异(P=0.01)。在超过 85% 的病例中,MB 和 ML 导管远端和中轴平面 5 mm 处的牙本质厚度最小:结论:在大多数病例中,中叶和中颊面管的远端平面较薄,因此远端表面更容易发生先天性穿孔。值得注意的是,在距窝沟 4 毫米和 5 毫米处,远侧壁明显比中侧壁薄。了解下颌第一磨牙中牙根危险区的解剖结构可以最大程度地降低牙髓事故(如带状穿孔)的风险。
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引用次数: 0
Cross-Sectional Survey to Assess Dental Students' Perception of the Utilization of a Case Difficulty Assessment Form during Various Stages of Root Canal Therapy. 横断面调查,评估牙科学生对根管治疗各阶段病例难度评估表的使用情况。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-05-29 eCollection Date: 2024-01-01 DOI: 10.1155/2024/1217448
Lubna E Hamadah, Maha M Algofaily, Ali T Alaqla, Naif A Alrubaiq, Ghaida A Aljammaz

Background: Several endodontic difficulty assessment forms are available to help dental students and general dentists estimate the difficulty of the case before initiating the endodontic treatment.

Objectives: This study aimed to assess if the American Association of Endodontics (AAE) case difficulty assessment form affects the dental student's perception of the difficulty encountered while performing root canal treatment (RCT).

Materials and methods: This was a cross-sectional online survey. After obtaining IRB approval, an electronic questionnaire was sent to dental students enrolled in the 4th and 5th years at King Saud University (KSU) and King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia. The questionnaire was divided into informed consent, demographic data, the use of the AAE case assessment form, RCT steps, diagnosis, local anesthesia administration, tooth isolation, and endodontic procedure.

Results: A total of 195 dental students participated in the study. There were 101 (52%) females, and 139 (71%) were from KSAU-HS. A positive association was found between students who used the AAE assessment form and who did not with their ability to reach the correct diagnosis (p=0.005), tooth isolation (p=0.03), and endodontic procedure difficulty score (p=0.018).

Conclusion: The use of the AAE form by dental students enabled them to differentiate between complicated and uncomplicated cases, thus lowering the difficulty encountered during RCT.

背景:目前有几种根管治疗难度评估表可以帮助牙科学生和普通牙科医生在开始根管治疗前估计病例的难度:本研究旨在评估美国牙髓病学协会(AAE)的病例难度评估表是否会影响牙科学生对进行根管治疗(RCT)时所遇到困难的感知:这是一项横断面在线调查。在获得 IRB 批准后,我们向沙特阿拉伯利雅得沙特国王大学(KSU)和沙特本-阿卜杜勒-阿齐兹国王健康科学大学(KSAU-HS)四年级和五年级的牙科学生发送了一份电子问卷。调查问卷分为知情同意、人口统计学数据、AAE病例评估表的使用、RCT步骤、诊断、局部麻醉、牙齿分离和根管治疗过程:共有 195 名牙科学生参与了研究。其中有 101 名(52%)女生,139 名(71%)来自 KSAU-HS。研究发现,使用 AAE 评估表的学生与未使用 AAE 评估表的学生在正确诊断能力(P=0.005)、牙齿分离能力(P=0.03)和牙髓治疗过程难度评分(P=0.018)方面存在正相关:结论:牙科专业学生使用 AAE 表格能够区分复杂和不复杂的病例,从而降低 RCT 过程中遇到的困难。
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引用次数: 0
Effect of Autoclave Sterilization on the Number of Uses and Resistance to Cyclic Fatigue of WaveOne Gold and Four Replica-Like Endodontic Instruments. 高压灭菌对 WaveOne Gold 和四种仿制牙髓器械的使用次数和抗循环疲劳能力的影响。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-05-29 eCollection Date: 2024-01-01 DOI: 10.1155/2024/6628146
Gustavo Ragozzini, Amjad Abu Hasna, Fernando Antonio Siano Dos Reis, Felipe Bernardo de Moura, Tiago Moreira Bastos Campos, Carlos Eduardo Silveira Bueno, Cláudio Antonio Talge Carvalho, Alexandre Sigrist de Martin

This study aimed to evaluate the effect of autoclave sterilization on the integrity and instruments' fracture number after multiple uses and cyclic fatigue of the original WaveOne Gold (Dentsply Sirona Endodontics) compared to four replica-like instruments (TF4-Gold, Roll-Wave-Gold, W-File, and Micro-Gold). The instruments were analyzed by scanning electron microscope (SEM) before being used in root canal instrumentation (baseline). One hundred and fifty human molars, freshly extracted for orthodontic reasons or periodontal disease and with severe curvature (between 30° and 60°), were used. Fifty teeth were instrumented with 10 instruments from each group and were evaluated for integrity. After sterilization in an autoclave, the instruments were analyzed by SEM. This procedure was repeated twice more, totaling three rounds of instrumentation, sterilization, and SEM analysis. Ten unused instruments from each group were evaluated for resistance to cyclic fatigue in a static test using a motor and a device simulating a canal with a 60° curvature angle. The instruments were driven by the motor until separation, visually verified, and the time measured in seconds. Data were analyzed by Chi-square, one-way ANOVA, and Tukey analysis, considering a significance level of 5%. It was found that there was no statistically significant difference between the groups tested in the effect of sterilization on the number of uses. The SEM analysis showed distortions in the instruments after the 3rd use. There was a statistically significant difference in the cyclic fatigue test between the results of WaveOne Gold, TF4 Gold, and Roll Wave Gold compared to W File and Micro Gold (P  < 0.0001) and a statistically significant difference between the W File and Micro Gold groups (P  < 0.0001). In conclusion, this study affirmed that WaveOne Gold, TF4-Gold, and Roll-Wave-Gold instruments exhibit comparable cyclic fatigue resistance. Besides, all examined instruments can be reliably employed for up to two cases.

本研究旨在评估高压灭菌对原装 WaveOne Gold(Dentsply Sirona Endodontics 公司生产)与四种仿制器械(TF4-Gold、Roll-Wave-Gold、W-File 和 Micro-Gold)多次使用和循环疲劳后的完整性和器械折断数的影响。这些器械在用于根管器械(基线)之前都经过扫描电子显微镜(SEM)分析。150 颗人类臼齿因牙齿畸形或牙周病而刚被拔出,具有严重的弯曲度(30° 至 60°)。每组使用 10 个器械对 50 颗牙齿进行器械操作,并对其完整性进行评估。在高压灭菌器中消毒后,用扫描电镜对器械进行分析。这一过程又重复了两次,总共进行了三轮器械检查、消毒和扫描电镜分析。在静态测试中,使用电机和一个模拟 60° 弯曲角的管道的装置,对每组中 10 个未使用过的器械的抗循环疲劳能力进行评估。仪器由电机驱动直至分离,目测验证,并以秒为单位测量时间。数据采用卡方、单因素方差分析和 Tukey 分析法进行分析,显著性水平为 5%。结果发现,在灭菌对使用次数的影响方面,受测组间没有明显的统计学差异。扫描电子显微镜分析显示,器械在第 3 次使用后出现变形。在循环疲劳测试中,WaveOne Gold、TF4 Gold 和 Roll Wave Gold 的结果与 W File 和 Micro Gold 相比,差异有统计学意义(P < 0.0001),W File 和 Micro Gold 组之间的差异也有统计学意义(P < 0.0001)。总之,本研究证实了 WaveOne Gold、TF4-Gold 和 Roll-Wave-Gold 仪器具有可比的抗循环疲劳性。此外,所有检查过的器械都可以可靠地使用长达两个病例。
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引用次数: 0
Managing Cracked Teeth with Root Extension: A Prospective Preliminary Study Using Biodentine™ Material. 使用牙根扩展治疗裂纹牙:使用 Biodentine™ 材料的前瞻性初步研究
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-05-09 eCollection Date: 2024-01-01 DOI: 10.1155/2024/2234648
Kênia Maria Soares de Toubes, Isabella Sousa Corrêa, Regina Célia Lopes Valadares, Stephanie Quadros Tonelli, Fábio Fernandes Borém Bruzinga, Frank Ferreira Silveira

Purpose: The authors of this study proposed an innovative approach involving the use of Biodentine™ material as an intraorifice barrier in cracked teeth with root extension to promote internal crack sealing, preventing the possibility of microinfiltration and apical crack propagation.

Materials and methods: The dental records of 11 patients with 12 posterior cracked teeth with root extension were included with a precise protocol performed by a senior endodontist. The treatment protocol included pulp diagnosis, crack identification using a dental operating microscope (DOM), endodontic treatment, placing a Biodentine™ as an intraorifice barrier, and immediate full-coverage restoration. The effectiveness of the treatment was assessed at two intervals, 6 months, and 1-3 years posttreatment, evaluating clinical, radiographic, and tomographic aspects. The treatment was deemed successful if there were no indications of radiolucency, sinus tracts, edema, or periodontal pockets associated with the crack line.

Results: The study observed remarkably positive outcomes during the follow-up period, which spanned from 1 to 3 years. All the cracked teeth (100%) remained asymptomatic, meaning they were free of pain or discomfort. Furthermore, these teeth were in occlusal function. Both radiographic and tomographic assessments revealed the absence of bone loss along the crack line. This outcome signifies that the treatment effectively prevented further deterioration of the surrounding bone.

Conclusions: Integrating advanced biomaterials and conservative restorative techniques has paved the way for innovative approaches in dental care. This protocol suggests a proactive step for managing cracked teeth with root extension. It addresses both biological aspects by sealing internal cracks and mechanical aspects by preventing crack progression, thereby improving these teeth' prognosis and long-term survival.

目的:本研究的作者提出了一种创新方法,即使用 Biodentine™ 材料作为牙根延伸裂缝牙的孔内屏障,以促进内部裂缝封闭,防止微渗透和根尖裂缝扩展的可能性:纳入了 11 名患者的牙科记录,这些患者有 12 颗牙根延伸的后裂牙,由一名资深牙髓病学家执行精确的治疗方案。治疗方案包括牙髓诊断、使用牙科手术显微镜(DOM)识别裂缝、牙髓治疗、放置 Biodentine™ 作为孔内屏障以及即时全覆盖修复。在治疗后 6 个月和 1-3 年的两个间隔期对治疗效果进行评估,评估内容包括临床、放射学和断层扫描。如果没有出现与裂纹线相关的放射线渗出、窦道、水肿或牙周袋,则认为治疗成功:研究发现,在 1 至 3 年的随访期间,治疗效果显著。所有裂开的牙齿(100%)都没有症状,即没有疼痛或不适感。此外,这些牙齿都具有咬合功能。放射学和断层扫描评估都显示,裂纹沿线没有骨质流失。这一结果表明,治疗有效地防止了周围骨质的进一步恶化:将先进的生物材料与保守的修复技术相结合,为牙科护理的创新方法铺平了道路。该方案为处理牙根延伸的裂纹牙提出了一个积极的步骤。它通过封闭内部裂缝解决了生物方面的问题,通过防止裂缝发展解决了机械方面的问题,从而改善了这些牙齿的预后和长期存活率。
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引用次数: 0
Prevalence and Factors Influencing Post-Operative Complications following Tooth Extraction: A Narrative Review. 拔牙术后并发症的发生率和影响因素:叙述性综述。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-05-09 eCollection Date: 2024-01-01 DOI: 10.1155/2024/7712829
Peter Dignam, Mariam Elshafey, Aparna Jeganathan, Magdalen Foo, Joon Soo Park, Manorika Ratnaweera

Background: Complications from dental extractions may result in multiple post-operative visits and adversely affect the patient's life. Preventing complications may decrease post-operative morbidity for the individual as well as lower societal costs, such as lost time from work and healthcare costs.

Objectives: This narrative review aims to assess the prevalence and factors influencing post-operative complications following tooth extraction, helping clinicians minimise the risk. Data Sources. Cross-sectional studies. Study Eligibility and Participants. Patients undergoing dental extractions. Our exclusion criteria included in vitro studies, animal studies, terminally ill patients, and tooth loss not due to dental extraction. Literature was collected from "PubMed" and "Web of Science" through search criteria based on the "PICO" framework. Twenty articles were used to formulate a prevalence table, and 156 articles were included for the factors influencing complications. Study Appraisal and Synthesis Methods. This narrative review was reported using the SANRA (a scale for the quality assessment of narrative review articles) checklist. Due to the scope of our narrative review and its associated objectives, the quality of cross-sectional studies (AXIS) will be conducted from the studies outlining the prevalence.

Results: Alveolar osteitis appears to be the most prevalent post-operative complication following tooth extraction. Predisposing factors can be significant in their ability to alter the risk of postoperative complications, and clinicians should provide patient-centred care to mitigate this risk. Limitations. Due to the breadth of context, a systematic review was not feasible, as it may have introduced heterogeneity.

Conclusion: This narrative review has highlighted an array of factors which can influence the prevalence of post-operative complications. Future research would benefit from individually reporting post-operative complications, reducing the heterogeneity in definitions of the complications, and including greater detail on the predisposing factors studied.

背景:拔牙并发症可能导致术后多次就诊,并对患者的生活造成不利影响。预防并发症可降低个人术后发病率,并降低社会成本,如误工时间和医疗成本:本叙述性综述旨在评估拔牙术后并发症的发生率和影响因素,帮助临床医生将风险降至最低。数据来源:横断面研究。横断面研究。研究资格和参与者。接受拔牙手术的患者。我们的排除标准包括体外研究、动物研究、临终患者以及非因拔牙导致的牙齿缺失。通过基于 "PICO "框架的搜索标准,我们从 "PubMed "和 "Web of Science "上收集了相关文献。20篇文章被用于制定流行率表,156篇文章被用于影响并发症的因素。研究评估与综合方法。本叙事性综述采用 SANRA(叙事性综述文章质量评估量表)核对表进行报告。由于叙事性综述的范围及其相关目标,横断面研究(AXIS)的质量将从概述患病率的研究中进行评估:牙槽骨炎似乎是拔牙术后最常见的并发症。诱发因素可显著改变术后并发症的风险,临床医生应提供以患者为中心的护理,以降低这一风险。局限性。由于内容广泛,不可能进行系统性回顾,因为这可能会带来异质性:本叙述性综述强调了一系列可能影响术后并发症发生率的因素。单独报告术后并发症、减少并发症定义的异质性、更详细地介绍研究的诱发因素,都将有益于未来的研究。
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引用次数: 0
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International Journal of Dentistry
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