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Analysis of a Combination Therapy Protocol for the Treatment of Oral Mucous Membrane Pemphigoid: A Retrospective Case Series Study. 治疗口腔粘膜丘疹病的联合疗法方案分析:回顾性病例系列研究。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-08 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5524514
Simona Santonocito, Alessandro Polizzi, Marco Matarese, Rosario Caltabiano, Gaetano Isola

Mucous membrane pemphigoid (MMP) is an autoimmune-based bullous disease affecting the mucous membranes, mainly oral and ocular. One of the most common clinical manifestations is desquamative gingivitis (DG), characterized by intense symptoms and functional limitations. The dentist is among the first specialists to observe DG and, therefore, must be able to diagnose it. In this regard, the purpose of the present study was to evaluate the efficacy and safety of a clinical protocol for the topical management of patients with DG and MMP buccal lesions. Thirteen patients with clinical and histologic diagnoses of MMP-localized DG in the oral cavity were retrospectively enrolled. Each patient received topical treatment with clobetasol propionate oral gel 0.05%; nicotinamide; oral probiotic (contains Bifidobacterium lactis HN019, Kluyveromyces marxianus fragilis B0399, colostrum, and biotin); and doxycycline. Before and after 3 months of therapy, clinic records were collected for each patient. Seven patients (53.8%) had a complete response to treatment; four patients (30.8%) had a partial response to treatment; and, finally, two patients (15.4%) had no benefit from therapy. Dental management of patients presenting solely with oral manifestations of MMP may involve the use of topical corticosteroids, doxycycline, vitamin supplements, and probiotics and associating professional oral hygiene procedures.

粘膜丘疹性类风湿关节炎(MMP)是一种基于自身免疫的大疱性疾病,主要影响口腔和眼部粘膜。最常见的临床表现之一是脱屑性牙龈炎(DG),其特点是症状强烈和功能受限。牙医是最先观察到牙龈炎的专家之一,因此必须具备诊断牙龈炎的能力。因此,本研究旨在评估对 DG 和 MMP 口腔病变患者进行局部治疗的临床方案的有效性和安全性。本研究回顾性地纳入了 13 名临床和组织学诊断为口腔 MMP 定位 DG 的患者。每位患者都接受了氯倍他索丙酸酯口服凝胶 0.05%、烟酰胺、口服益生菌(含乳双歧杆菌 HN019、马克氏脆杆菌 Kluyveromyces marxianus fragilis B0399、牛初乳和生物素)和强力霉素的局部治疗。在治疗 3 个月前后,收集了每位患者的门诊记录。结果显示,7 名患者(53.8%)对治疗有完全反应;4 名患者(30.8%)对治疗有部分反应;最后,2 名患者(15.4%)没有从治疗中获益。对于仅有口腔表现的 MMP 患者,牙科治疗可包括使用局部皮质类固醇、多西环素、维生素补充剂和益生菌,以及相关的专业口腔卫生程序。
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引用次数: 0
Effectiveness of Calcium Hydroxide and Gingerols Mixture as a Novel Obturation Material for Infected Root in Primary Teeth: A Randomized Clinical Trial. 氢氧化钙和姜酚混合物作为新型牙根感染封闭材料的有效性:随机临床试验。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-08 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5528260
Fathi A Qasem, Salwa M Awad, Rizk A Elagamy

Introduction: The tendency to use dental materials of plant origin is one of the prevailing trends in dentistry to reduce exposure to materials that could have some toxic impact in the long term.

Objective: To evaluate the efficacy of calcium hydroxide combined with gingerols (Ginge-Cal) as a novel obturation material for treating infected primary teeth and decreasing the recurrence of infection.

Materials and methods: The study was conducted on 30 lower primary molars with infected pulp for children aged 4-8 years. The sample was randomly divided into two groups depending on the tested obturation material: Ginge-Cal group and the Metapex group. The evaluation was done by different parameters clinically and radiographically at various intervals up to 12 months.

Results: Based on chi-squared and McNamara's test with a 5% significance level, the clinical results indicated that Ginge-Cal group was more effective than the Metapex group in reducing or eliminating pain (P=0.467) after 1 week, sensitivity to percussion (P=0.090) at 3 months of follow-up, purulent swelling (P=0.444) at 6 and 9 months of follow-up, fistula, and tooth mobility. The radiographic results, based on the periapical and furcation area radiolucency at 12 months of follow-up, favored Ginge-Cal group over the Metapex group (P=0.683), (P=0.456), respectively. There were no statistically significant differences in pathological root resorption and periodontal space. The differences within the Ginge-Cal group were directly influenced by the time intervals in a statistically significant manner, ranging from (P=0.004) to (P < 0.001). The success percentage was 87.5% for Ginge-Cal group and 64.3% for Metapex group.

Conclusions: Ginge-Cal can be considered a promising material for treating the infected root canal when used as an obturation material for the infected root canal. This trial is registered with NCT05181813.

导言:使用源自植物的牙科材料是牙科领域的主流趋势之一,其目的是减少接触可能长期产生毒性影响的材料:目的:评估氢氧化钙与姜酚(Ginge-Cal)作为新型封闭材料治疗感染性乳牙并减少感染复发的效果:研究对象是 30 颗牙髓感染的小学下磨牙,年龄在 4-8 岁之间。根据测试的封闭材料,样本被随机分为两组:Ginge-Cal组和Metapex组。每隔 12 个月通过临床和影像学的不同参数进行评估:根据卡方检验和麦克纳马拉检验(显著性水平为 5%),临床结果显示,Ginge-Cal 组在减轻或消除 1 周后的疼痛(P=0.467)、随访 3 个月时的叩诊敏感性(P=0.090)、随访 6 个月和 9 个月时的化脓性肿胀(P=0.444)、瘘管和牙齿活动度方面比 Metapex 组更有效。根据随访 12 个月时根尖周和毛囊区的放射线结果,Ginge-Cal 组优于 Metapex 组(P=0.683)和(P=0.456)。病理根吸收和牙周间隙的差异无统计学意义。Ginge-Cal组内的差异直接受时间间隔的影响,从(P=0.004)到(P < 0.001)均有统计学意义。Ginge-Cal组的成功率为87.5%,Metapex组为64.3%:结论:如果将 Ginge-Cal 用作感染根管的封固材料,可以认为它是治疗感染根管的一种很有前景的材料。该试验已在 NCT05181813 上注册。
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引用次数: 0
Psychometric Testing of HeLD-14 in a Colombian Geriatric Population. 在哥伦比亚老年群体中对 HeLD-14 进行心理测试。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-07 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5570671
Ana Cristina Mafla, Mauricio Herrera-López, Carmen Gallardo-Pino, Falk Schwendicke

Introduction: The objective of this study was to test the validity and reliability of the Colombian version of the Health Literacy in Dentistry (HeLD-14) in older adults.

Materials and methods: A translation and validation study of HeLD-14 was conducted on 384 non-institutionalized older adults attending the Dental Clinic at Universidad Cooperativa from Pasto, Colombia. A cross-cultural adaptation of a multidimensional HeLD-14 was completed, and the psychometric properties of this scale were evaluated through a cross-validation method using an exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA). Internal consistency was measured with Cronbach's alpha (α) and Omega's McDonald (ɷ). The statistical significance was set at P < 0.05.

Results: The EFA demonstrated that a single-factor structure with 11 items explained a cumulative 59.86% of the overall variance. The CFA confirmed that goodness of fit indices of this questionnaire had optimal adequateness (χ2S-B = 109.047; χ2S-B/(44) = 2.478, P=0.001; non-normed fit index = 0.901; comparative fit index = 0.908; root mean square error of approximation = 0.079 (90% CI (0.075, 0.083)); standardized root mean residual = 0.080). The coefficients indicated a high internal consistency for the total scale (α = 0.94; ɷ = 0.96).

Conclusion: The developed adaptation of HeLD-14 for the Colombian population, HeLD-Col, is a unidimensional, reliable, and valid instrument to assess oral health literacy in older adults in Colombia.

内容简介本研究的目的是测试哥伦比亚版牙科健康素养(HeLD-14)在老年人中的有效性和可靠性:对哥伦比亚帕斯托合作大学牙科诊所的 384 名非住院老年人进行了 HeLD-14 的翻译和验证研究。对多维 HeLD-14 进行了跨文化改编,并通过探索性因子分析 (EFA) 和确认性因子分析 (CFA) 的交叉验证方法对该量表的心理测量特性进行了评估。内部一致性采用 Cronbach's alpha (α) 和 Omega's McDonald (ɷ)进行测量。统计显著性设定为 P <0.05:EFA 表明,有 11 个项目的单因素结构累计解释了 59.86% 的总体方差。CFA证实该问卷的拟合优度指数达到最佳(χ2S-B = 109.047;χ2S-B/(44) = 2.478,P=0.001;非标准化拟合指数 = 0.901;比较拟合指数 = 0.908;均方根近似误差 = 0.079 (90% CI (0.075, 0.083));标准化均方根残差 = 0.080)。系数表明总量表具有较高的内部一致性(α = 0.94;ɷ = 0.96):结论:针对哥伦比亚人群开发的 HeLD-14 改编量表 HeLD-Col 是评估哥伦比亚老年人口腔健康素养的单维度、可靠且有效的工具。
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引用次数: 0
Oral Health and Lifestyle Factors in Rural Adults of Jharkhand, India. 印度恰尔肯德邦农村成年人的口腔健康和生活方式因素。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-07 eCollection Date: 2024-01-01 DOI: 10.1155/2024/9100665
Sandeep Kumar, Anubhuti, Abhishek Gautam, Ambar Khan, Anita B, Punit Karmacharya

Background: There is a lack of health care facilities and poor oral health awareness among the rural adult population of Jharkhand which may significantly influence oral health status and lifestyle scores.

Aim: To assess the oral hygiene status, lifestyle factors, and various risk factors associated with poor lifestyle scores in the rural adult population of Jharkhand.

Materials and methods: This cross-sectional study included 400 rural adults (35-44 years) populations. Face-to-face interviews were used to collect sociodemographic data and data on oral hygiene practices. Lifestyle factors were assessed using Health Practice Index (HPI). Oral health status was assessed using the oral health assessment proforma provided by the World Health Organization (WHO).

Results: A significantly higher (p value < 0.0001) prevalence of tobacco consumption was reported by males (94.0%) compared to females (4.0%). The males (54.0%) reported significantly higher (p value < 0.0001) poor lifestyle scores compared to females (38.0%). A significantly higher (p value < 0.0001) number of oromucosal lesions (13.0%) was found in males compared to females (1.0%). There was a significant difference (p value < 0.0001) in the oral hygiene status between males and females with majority of males (60.0%) having poor oral hygiene. A bivariate analysis was performed, and unadjusted odds ratio was computed. The factors that became significant were then entered into logistic regression model (enter method). The results of logistic regression analysis showed that education (OR = 0.3, p value = 0.003), systemic diseases/long-term medication (OR = 2.9, p value = 0.004), tobacco consumption (OR = 2.9, p value = 0.006), oral hygiene status (OR = 2.4, p value = 0.007), and dental caries (OR = 2.9, p value = 0.004) were significant predictors of poor lifestyle scores.

Conclusion: The rural adult population in Jharkhand has poor oral hygiene status and poor lifestyle scores. It is important to raise awareness regarding good oral hygiene and the negative effects of tobacco consumption. The dental visit should be encouraged, and the concept of preventive care needs to be instilled.

背景:目的:评估贾坎德邦农村成年人的口腔卫生状况、生活方式因素以及与不良生活方式评分相关的各种风险因素:这项横断面研究包括 400 名农村成年人(35-44 岁)。通过面对面访谈收集社会人口学数据和口腔卫生习惯数据。使用健康实践指数(HPI)评估生活方式因素。口腔健康状况采用世界卫生组织(WHO)提供的口腔健康评估表进行评估:P值P值P值P值P值=0.003)、全身性疾病/长期服药(OR=2.9,P值=0.004)、吸烟(OR=2.9,P值=0.006)、口腔卫生状况(OR=2.4,P值=0.007)和龋齿(OR=2.9,P值=0.004)明显较高,是不良生活方式得分的重要预测因素:结论:恰尔康得邦的农村成年人口腔卫生状况不佳,生活方式评分较低。提高对良好口腔卫生和烟草消费负面影响的认识非常重要。应鼓励看牙医,并灌输预防保健的理念。
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引用次数: 0
Comparative Evaluation of Antimicrobial and Smear Layer Removal Efficacy of Mangifera indica Kernel Extract as Root Canal Irrigant in Primary Molar: An In Vitro Study. 芒果核提取物作为初级磨牙根管冲洗剂的抗菌和去除涂膜层功效的比较评估:体外研究
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-07 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5513504
S Haripriya, Jamaluddin Mohammed Farzan, Parisa Nourouzi Baghkomeh, Sivakumar Nuvvula

Background: Endodontic therapy aims to disinfect the entire root canal system. Extracts from the kernel of Mangifera indica has the potential to be a novel root canal irrigant that has yet to be studied. Hence, the present study evaluated the antimicrobial, and smear layer removal efficacy of the M. indica kernel extract as a root canal irrigant in primary molars.

Materials and methods: Methanolic extract of M. indica was prepared using the standard method. The antimicrobial efficacy of M. indica kernel extract was determined by agar diffusion method with 3% sodium hypochlorite and distilled water as controls, and the smear layer removal efficacy was assessed under the SEM after processing the root samples with different concentrations of M. indica kernel extract with 17% EDTA and distilled water as positive and negative controls, respectively.

Results: A statistically significant antimicrobial efficacy was observed with the largest mean zone of inhibition recorded with 50 μl of M. indica kernel extract at 24 hr of incubation period, when compared to sodium hypochlorite as a root canal irrigant against Enterococcus faecalis using agar diffusion method at MIC value of 0.625 mg/ml. The smear layer removal efficacy of the M. indica kernel extract was not satisfactory, when compared with EDTA as a root canal irrigant in primary molars and observed under SEM. In contrast, a complete smear layer removal was observed with 17% EDTA solution.

Conclusion: M. indica kernel extract has an enhanced antimicrobial efficacy but poor smear layer removal efficacy when used as a root canal irrigant.

背景:牙髓治疗的目的是对整个根管系统进行消毒。芒果核提取物有可能成为一种新型根管冲洗剂,但尚未进行研究。因此,本研究评估了芒果核提取物作为初级磨牙根管冲洗剂的抗菌和去除涂抹层的功效:采用标准方法制备 M. indica 的甲醇提取物。以 3% 次氯酸钠和蒸馏水为对照,用琼脂扩散法测定籼米仁提取物的抗菌功效;以 17% EDTA 和蒸馏水分别为阳性和阴性对照,用不同浓度的籼米仁提取物处理根部样本后,在扫描电镜下评估涂抹层去除功效:采用琼脂扩散法对粪肠球菌进行根管冲洗时,与次氯酸钠相比,50 μl 籼米仁提取物在 24 小时培养期的平均抑菌区最大,MIC 值为 0.625 mg/ml。在扫描电镜下观察,与作为初级磨牙根管冲洗剂的乙二胺四乙酸相比,M. indica 核提取物的涂抹层去除效果并不理想。相比之下,使用 17% EDTA 溶液可完全去除涂抹层:结论:M. indica果核提取物作为根管冲洗剂具有更强的抗菌效果,但涂抹层去除效果较差。
{"title":"Comparative Evaluation of Antimicrobial and Smear Layer Removal Efficacy of <i>Mangifera indica</i> Kernel Extract as Root Canal Irrigant in Primary Molar: An In Vitro Study.","authors":"S Haripriya, Jamaluddin Mohammed Farzan, Parisa Nourouzi Baghkomeh, Sivakumar Nuvvula","doi":"10.1155/2024/5513504","DOIUrl":"10.1155/2024/5513504","url":null,"abstract":"<p><strong>Background: </strong>Endodontic therapy aims to disinfect the entire root canal system. Extracts from the kernel of <i>Mangifera indica</i> has the potential to be a novel root canal irrigant that has yet to be studied. Hence, the present study evaluated the antimicrobial, and smear layer removal efficacy of the <i>M. indica</i> kernel extract as a root canal irrigant in primary molars.</p><p><strong>Materials and methods: </strong>Methanolic extract of <i>M. indica</i> was prepared using the standard method. The antimicrobial efficacy of <i>M. indica</i> kernel extract was determined by agar diffusion method with 3% sodium hypochlorite and distilled water as controls, and the smear layer removal efficacy was assessed under the SEM after processing the root samples with different concentrations of <i>M. indica</i> kernel extract with 17% EDTA and distilled water as positive and negative controls, respectively.</p><p><strong>Results: </strong>A statistically significant antimicrobial efficacy was observed with the largest mean zone of inhibition recorded with 50 <i>μ</i>l of <i>M. indica</i> kernel extract at 24 hr of incubation period, when compared to sodium hypochlorite as a root canal irrigant against <i>Enterococcus faecalis</i> using agar diffusion method at MIC value of 0.625 mg/ml. The smear layer removal efficacy of the <i>M. indica</i> kernel extract was not satisfactory, when compared with EDTA as a root canal irrigant in primary molars and observed under SEM. In contrast, a complete smear layer removal was observed with 17% EDTA solution.</p><p><strong>Conclusion: </strong><i>M. indica</i> kernel extract has an enhanced antimicrobial efficacy but poor smear layer removal efficacy when used as a root canal irrigant.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2024 ","pages":"5513504"},"PeriodicalIF":2.1,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10866632/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139735168","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
Do Ultraconservative Access Cavities Hinder Endodontic Reintervention in Mandibular Incisors? A Laboratory Investigation. 超保守通气孔是否会阻碍下颌切牙的牙髓再干预?一项实验室调查。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-02-03 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5516067
Caroline Meurer Luiz, Taynara Santos Goulart, Ketillyn da Silva Magalhães, Gilmar da Rosa Souza Junior, Lucas da Fonseca Roberti Garcia, Josiane de Almeida

This study assessed the influence of the type of endodontic access cavity on endodontic reintervention. Twenty mandibular central incisors were distributed into two groups (n = 10): TradAC group-traditional access cavities and UltraAC.Inc group-ultraconservative access cavities. After endodontic access, the root canals were prepared and obturated by the single cone technique. The filling material was removed with the Reciproc R25 instrument, followed by reinstrumentation with the R40 instrument. Images acquisition of each root canal hemisection was performed in a stereomicroscope to quantify the amount of remaining filling material. The amount of remaining filling material attached to the root canal walls was expressed in square millimeter (mm2). Data were statistically analyzed (one-way ANOVA and post hoc Student's t-tests). There was no statistically significant difference between TradAC and UltraAC.Inc groups (p > 0.05). None of the tested endodontics' access showed root canal walls completely free of filling material. Ultraconservative access cavities in mandibular incisors had no negative impact on the filling material removal.

本研究评估了牙髓通路洞的类型对牙髓再干预的影响。20 颗下颌中切牙被分为两组(n = 10):TradAC 组--传统通路洞,UltraAC.Inc 组--超保守通路洞。根管治疗后,采用单锥技术对根管进行预备和钝化。用 Reciproc R25器械去除充填材料,然后用 R40器械重新插入。在体视显微镜下采集每个根管半切面的图像,以量化剩余填充材料的数量。附着在根管壁上的剩余填充材料量以平方毫米(mm2)表示。对数据进行统计分析(单因素方差分析和事后学生 t 检验)。TradAC 组和 UltraAC.Inc 组之间没有明显的统计学差异(p > 0.05)。在测试的根管治疗通路中,没有一个通路的根管壁完全没有充填材料。下颌切牙的超保守通路龋洞对充填材料的清除没有负面影响。
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引用次数: 0
The Correlation between Intraorifice Distance and the Anatomical Characteristics of the Second Mesiobuccal Canal of Maxillary Molars: A CBCT Study. 上颌臼齿第二中颊面管孔内距离与解剖特征之间的相关性:CBCT 研究。
IF 2.1 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-01-29 eCollection Date: 2024-01-01 DOI: 10.1155/2024/6636637
Isabella Perondi, Silvio Taschieri, Martino Baruffaldi, Roberto Fornara, Luca Francetti, Stefano Corbella

Introduction: Missing anatomy is one of the main causes of endodontic failures, and accurate knowledge of teeth anatomy is a prerequisite for adequate root canal treatment. The aim of the present cone beam computed tomography (CBCT) study was to describe the anatomical characteristics of the mesiobuccal (MB) root canals of maxillary molars and to understand if a correlation exists between the position of the canal orifices and the anatomical features of the root.

Methods: For the purposes of the study, a total of 100 CBCT scans of maxillary molars with two MB canals were selected and studied. The features of root canal anatomy of the MB root of the same teeth were analyzed and recorded (root length, confluence, and Vertucci classification). The distance between MB1 and MB2 orifices and the palatal orifice were recorded, as well as the distance between the orifices and the line joining the palatal orifice and the others. A statistical analysis was performed by providing descriptive measures, the measure of the correlation between different parameters, and the influence of some of these measures on the presence of a confluence between MB1 and MB2.

Results: It resulted that the most frequent configuration is type II Vertucci. The length measured on the sagittal plane was significantly correlated to the presence of a confluence in the MB root. When the root length was higher than 14.56 mm, the confluence is three times more frequent than when the length is lower (OR = 3.635). The area under the curve (AUC) of the receiver operator characteristic (ROC) curve for length on the sagittal plane was 0.632 (P=0.036).

Conclusions: The presence of a confluence between the MB canals of maxillary molars is correlated to the length of the root that could be measured on the sagittal plane and to the distance between the canal orifices. The relative position of the root canal orifices in relation to anatomic landmarks needs to be further explored.

介绍:解剖结构缺失是导致牙髓治疗失败的主要原因之一,而准确了解牙齿解剖结构是进行适当根管治疗的先决条件。本锥束计算机断层扫描(CBCT)研究的目的是描述上颌磨牙中颊面(MB)根管的解剖特征,并了解根管口的位置与牙根的解剖特征之间是否存在相关性:为了进行这项研究,我们选择并研究了总共 100 个带有两个 MB 根管的上颌磨牙 CBCT 扫描图像。分析并记录了相同牙齿 MB 根的根管解剖特征(根长、汇合点和 Vertucci 分类)。记录了 MB1 和 MB2 口与腭侧口之间的距离,以及口与腭侧口连线之间的距离。通过提供描述性指标、不同参数之间的相关性指标以及其中一些指标对 MB1 和 MB2 之间是否存在汇合的影响,进行了统计分析:结果:最常见的结构是 Vertucci II 型。矢状面上测量的长度与 MB 根部是否存在汇合有显著相关性。当牙根长度大于 14.56 毫米时,汇合的频率是长度小于 14.56 毫米时的三倍(OR = 3.635)。矢状面上长度的接收者操作特征曲线(ROC)曲线下面积为 0.632(P=0.036):上颌磨牙根管之间是否存在汇合点与在矢状面上可测量到的牙根长度以及根管口之间的距离相关。根管口与解剖标志的相对位置还需要进一步探讨。
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引用次数: 0
Do the Various Indirect Bonding Techniques Provide the Same Accuracy for Orthodontic Bracket Placement? (Randomized Clinical Trial). 各种间接粘接技术为正畸托槽安装提供的精确度相同吗?(随机临床试验)。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-01-22 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5455197
Ammar Sh Al-Ubaydi, Dheaa Al-Groosh

Background: For orthodontic treatment to be effective, bracket placement must be precise to make the finishing stage easier, leading to an ideal occlusion with minimal intervention. This study aimed to evaluate the accuracy of manual and digital bracket positioning techniques utilizing computer-aided design and computer-aided manufacturing (CAD/CAM) jigs, 3D-printed indirect bonding trays (IBT), and double-layer vacuum-formed thermoplastic IBT.

Methods: This study was done by scanning the dental arch of 30 orthodontic patients. The virtual setup and bracket positioning were performed with the Insignia™ system for ten patients, and 3D Maestro® software was used for the virtual setup of the remaining 20 patients. At the same time, the bracket positioning of 10 patients was done digitally by the 3D Maestro® software and the remaining 10 patients manually through the Ray Set® device. IBT were fabricated by CAD/CAM system, 3D printer, and vacuum-formed thermoplastic machine. A virtual bracket position was compared to the actual bracket position using the best-fit method of 3D digital superimposition in Geomagic® Control X™ (CX) software to determine how accurate it was in terms of linear and angular accuracy. Statistical analyses using SPSS 26.0 including Bland-Altman plots were used to assess the intra-examiner reproducibility. Shapiro-Wilk test was used to measure normality distribution. Wilcoxon matched-pairs signed rank test was used to analyze the differences between bracket positions within each group.

Results: Although there were obvious positional discrepancies between several readings, they were still within clinically acceptable ranges.

Conclusions: All types of IBT would translate the planned position of the bracket from the digital and manual techniques to the teeth of patients with accepted precision in both linear and angular measurements; in addition, the error rate is about the same for all types of IBT. This trial is registered with NCT05549089.

背景:为了使正畸治疗有效,托槽的放置必须精确,这样才能使矫治阶段更轻松,从而以最少的干预获得理想的咬合。本研究旨在评估利用计算机辅助设计和计算机辅助制造(CAD/CAM)夹具、3D 打印间接粘接托盘(IBT)和双层真空成型热塑性 IBT 的手动和数字托槽定位技术的准确性:本研究通过扫描 30 名正畸患者的牙弓来完成。其中 10 名患者使用 Insignia™ 系统进行虚拟设置和托槽定位,其余 20 名患者使用 3D Maestro® 软件进行虚拟设置。同时,10 名患者的托槽定位由 3D Maestro® 软件以数字方式完成,其余 10 名患者的托槽定位则通过 Ray Set® 设备手动完成。IBT 由 CAD/CAM 系统、3D 打印机和真空成型热塑机制造。使用 Geomagic® Control X™ (CX) 软件中的三维数字叠加最佳拟合方法将虚拟支架位置与实际支架位置进行比较,以确定其线性和角度精度。使用 SPSS 26.0(包括 Bland-Altman 图)进行统计分析,以评估检查者内部的重现性。Shapiro-Wilk 检验用于测量正态分布。Wilcoxon 匹配对符号秩检验用于分析每组内支架位置之间的差异:尽管几个读数之间存在明显的位置差异,但仍在临床可接受的范围内:结论:所有类型的 IBT 都能将数字和手动技术中的托槽计划位置转换到患者的牙齿上,其线性和角度测量的精确度均可接受;此外,所有类型的 IBT 的误差率大致相同。该试验已在 NCT05549089 上注册。
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引用次数: 0
Laypersons' Esthetic Perception of Different Dentogingival Characteristics Based on Smile Dynamics: Cross-Sectional Study. 基于微笑动态的普通人对不同牙龈特征的审美感知:横断面研究
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-01-16 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5561640
Adriana S Malheiros, Julianne R Barboza, Sebastião M Pinheiro Neto, Daniela B Dibai, Etevaldo M Maia Filho, Célia Maio Pinzan-Vercelino, Meire C Ferreira, Rudys R J Tavarez

This study aimed to evaluate laypersons' esthetic perception of different dentogingival characteristics based on smile dynamics. Six voluntary models were selected, with only one presenting dentogingival characteristics within esthetic standards: white teeth, good alignment, and adequate gingival contour. Two videos were then produced. One video focused on the mouth, whereas the other focused on the entire face of the model, to ensure that the dynamics of the smile could be evaluated. For the evaluation, 200 laypeople were asked to rank the models from first to sixth place in their order of preference. Laypeople were required to justify their reasons for choosing the first and last places. The obtained data were subjected to descriptive and inferential statistical analyses. The results showed that smile and face dynamics influenced the perception of dentogingival characteristics and facial esthetics. No significant changes were observed. However, a gummy smile accompanied by dental alterations was observed in the video of the mouth and was masked by the facial set exposed in the video of the face. A diastema between the central incisors was decisive for negative evaluation of both the mouth and face. The standard model was rated as the most pleasing. Smiles and facial dynamics influence the perception of dentogingival characteristics. Smile and facial dynamics influence the perception of dentogingival alterations among Brazilian laypeople. Diastema is an alteration that interferes with the isolated evaluation of the lower third of the face and the facial set.

本研究旨在评估非专业人士根据微笑动态对不同牙龈特征的美学感知。研究选取了六个自愿参加的模型,其中只有一个模型的牙龈特征符合美学标准:牙齿洁白、排列整齐、牙龈轮廓适当。然后制作了两段视频。其中一个视频的重点是口腔,而另一个视频的重点是模型的整个面部,以确保能对微笑的动态进行评估。在评估过程中,200 名非专业人士被要求按照他们的喜好顺序将模型从第一名排到第六名。要求非专业人士说明选择第一名和最后一名的理由。对所获得的数据进行了描述性和推论性统计分析。结果显示,微笑和面部动态影响了人们对牙龈特征和面部美学的感知。没有观察到明显的变化。然而,在口腔视频中观察到了伴随牙齿改变的牙龈微笑,并被面部视频中的面部表情所掩盖。中切牙之间的间隙对口腔和面部的负面评价起着决定性作用。标准模型被评为最令人愉悦的模型。微笑和面部动态影响对牙龈特征的感知。微笑和面部动态影响巴西普通人对牙龈改变的感知。缺损是一种影响对面部下三分之一和面部轮廓进行单独评价的改变。
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引用次数: 0
Influence of Abutment Screw-Tightening Methods on the Screw Joint: Immediate and Long-Term Stability. 基台螺钉拧紧方法对螺钉连接的影响:即刻稳定性和长期稳定性。
IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-01-16 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5768318
Manlin Sun, Yusen Shui, Yuqiang Zhang, Ruiyang Ma, Yuwei Zhao, Hongyu Chen, Ping Yu, Zhi Li, Tingting Wu, Haiyang Yu

Objective: To evaluate the influence of screw-tightening methods on the immediate and long-term stability of dental implant screw joints. Methodology. A total of 150 implants of three different implant systems with different diameters were used in this study. Each group was divided into three subgroups (n = 5), according to the tightening methods (A-tightening with recommended torque and retorque after 10 min; B-tightening with recommended torque, then loosening and immediate retorque; C-tightening with recommended torque only once). The operating time of tightening the assemblies was recorded. Ten minutes later, the immediate removal torque (IRT) (Ncm) was measured. After retightening the assemblies, a dynamic load between 20 and 200 N was applied for 105 cycles, and the postloading removal torque (PRT) (Ncm) was measured. Scanning electron microscopy (SEM) was used to observe the surface topography of the screws.

Results: For different types of implants, the IRTs were 11.92 ± 1.04-34.12 ± 0.36 Ncm for method A, 11.64 ± 0.57-33.96 ± 0.29 Ncm for method B, and 10.30 ± 0.41-31.62 ± 0.52 Ncm for method C, and the IRTs of methods A and B were 6.28%-21.58% higher than that of method C (P ≤ 0.046). The PRTs were 4.08 ± 0.77-29.86 ± 0.65 Ncm for method A, 4.04 ± 0.40-29.60 ± 0.36 Ncm for method B, and 2.98 ± 0.26-26.38 ± 0.59 Ncm for method C, and the PRTs of methods A and B were 11.77%-44.87% higher than that of method C (P ≤ 0.016). The removal torque loss rates of methods A (12.49% ± 0.99%-65.88% ± 4.83%) and B (12.84% ± 0.96%-65.35% ± 1.95%) were 3.04%-7.74% lower than that of method C (16.58% ± 0.56%-71.10% ± 1.58%) (P ≤ 0.017). The operating time of method A was much longer than those of methods B and C (P < 0.001). The structural integrity disruption of the screw thread was observed according to the SEM results in all postloading groups.

Conclusions: Method B (torquing and then loosening and immediate retorquing) increases the screw joint immediate stability by 6.28%-21.58% and the long-term stability by 11.77%-44.87% compared with method C (torquing only once), has comparable screw joint stability compared with method A (retorquing after 10 min), saves time and is recommended in clinical settings.

目的评估螺钉拧紧方法对种植牙螺钉关节近期和长期稳定性的影响。研究方法。本研究共使用了三种不同直径的种植系统的 150 个种植体。根据拧紧方法(A-用推荐扭矩拧紧,10 分钟后重新拧紧;B-用推荐扭矩拧紧,然后松开并立即重新拧紧;C-仅用推荐扭矩拧紧一次),每组分为三个亚组(n = 5)。记录拧紧组件的操作时间。十分钟后,测量立即拆卸扭矩(IRT)(牛顿厘米)。重新拧紧组件后,施加 20 到 200 牛之间的动态负载 105 个循环,并测量加载后的移除扭矩(PRT)(牛顿厘米)。扫描电子显微镜(SEM)用于观察螺钉的表面形貌:对于不同类型的种植体,方法 A 的 IRTs 为 11.92 ± 1.04-34.12 ± 0.36 Ncm,方法 B 为 11.64 ± 0.57-33.96 ± 0.29 Ncm,方法 C 为 10.30 ± 0.41-31.62 ± 0.52 Ncm,方法 A 和 B 的 IRTs 比方法 C 高 6.28%-21.58%(P ≤ 0.046)。方法 A 的 PRT 为 4.08 ± 0.77-29.86 ± 0.65 Ncm,方法 B 为 4.04 ± 0.40-29.60 ± 0.36 Ncm,方法 C 为 2.98 ± 0.26-26.38 ± 0.59 Ncm,方法 A 和 B 的 PRT 比方法 C 高 11.77%-44.87%(P ≤ 0.016)。方法 A(12.49%±0.99%-65.88%±4.83%)和 B(12.84%±0.96%-65.35%±1.95%)的去除扭矩损失率比方法 C(16.58%±0.56%-71.10%±1.58%)低 3.04%-7.74%(P≤0.017)。方法 A 的操作时间远远长于方法 B 和 C(P < 0.001)。根据扫描电子显微镜(SEM)结果,所有加载后组均观察到螺纹结构完整性破坏:结论:与方法 C(仅扭转一次)相比,方法 B(扭转后松开并立即重新扭转)可将螺钉关节的即时稳定性提高 6.28%-21.58%,将长期稳定性提高 11.77%-44.87%;与方法 A(10 分钟后重新扭转)相比,方法 B 的螺钉关节稳定性相当,而且节省时间,值得临床推荐。
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引用次数: 0
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International Journal of Dentistry
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