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Evaluation of cutting efficiency, surface roughness, and diameter of diamond rotary instruments on laboratory and computer-aided designed and computer-aided manufactured resin composite materials. 在实验室和计算机辅助设计和计算机辅助制造的树脂复合材料上评价金刚石旋转仪器的切割效率、表面粗糙度和直径。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-09 DOI: 10.1016/j.adaj.2025.11.007
Selva Malar Munusamy, Yee Shien Chung, Mohideen Salihu Farook, Siti Fauzza Ahmad, Zubaidah Zanul Abidin

Background: Replacement of diamond rotary instruments is critical for optimizing cutting efficiency. The authors aimed to assess and compare the cutting efficiency, surface roughness, and diameter of coarse-grit and medium-grit diamond rotary instruments after repeated cuts on indirect composite materials.

Methods: Medium-grit (115 μm) and coarse-grit (150 μm) diamond rotary instruments (NTI; Kahla GmbH) were tested on 2-mm-thick Ceramage (Shofu) (CM) and Lava Ultimate (3M ESPE) (LU) specimens and divided into 4 groups of 8 samples per group: LU-coarse, LU-medium, CM-coarse, and CM-medium. A high-speed handpiece with a cutting load of 0.9 N, speed of 400,000 rpm, and water flow rate of 25 mL/min was used. Cutting efficiency was assessed by measuring cutting time and surface roughness (roughness average) was measured using a surface analyzer and diameter was measured using calipers. Data were analyzed statistically using 2-way analysis of variance (ANOVA), followed by 1-way ANOVA with Tukey honestly significant difference post hoc test (P < .05). For comparison between cuts, 1-way repeated measures ANOVA was used for cutting time and surface roughness and paired samples t test was used for diameter (P < .05).

Results: Coarse-grit diamond rotary instruments had significantly higher (P < .05) cutting efficiency than medium-grit diamond rotary instruments at cut 1. At cut 10, significant differences (P < .05) in mean cutting time, surface roughness, and diameter were observed, with coarse-grit diamond rotary instruments having pronounced wear patterns compared with medium-grit diamond rotary instruments.

Conclusions: Differences in cutting time, surface roughness, and diameter after repeated cuts on indirect composite materials was instrument dependent. Coarse-grit rotary instruments had greater deterioration and wear than medium-grit rotary instruments.

Practical implications: Medium-grit diamond rotary instruments can be suggested for prolonged use (cut 10) on computer-aided designed and computer-aided manufactured composites. Diamond rotary instruments are recommended for replacement after cut 10 or 5 minutes of use on indirect composite materials.

背景:金刚石旋转仪器的更换是优化切割效率的关键。作者旨在评估和比较粗粒和中粒金刚石旋转仪器在间接复合材料上重复切割后的切割效率、表面粗糙度和直径。方法:采用中粒度(115 μm)和粗粒度(150 μm)的金刚石旋转仪器(NTI; Kahla GmbH)对2mm厚的陶瓷(Shofu) (CM)和Lava Ultimate (3M ESPE) (LU)试样进行检测,并将其分为4组,每组8个试样:LU-粗、LU-中、CM-粗、CM-中。采用高速机头,切割载荷为0.9 N,速度为40000rpm,水流速度为25ml /min。通过测量切割时间来评估切割效率,使用表面分析仪测量表面粗糙度(平均粗糙度),使用卡尺测量直径。资料采用2-way方差分析(ANOVA)进行统计学分析,随后采用1-way ANOVA与Tukey诚实显著差异事后检验(P < 0.05)。对于切口间的比较,切割时间和表面粗糙度采用单向重复测量方差分析,直径采用配对样本t检验(P < 0.05)。结果:粗粒度金刚石旋转器械在切割1处的切割效率显著高于中粒度金刚石旋转器械(P < 0.05)。在切割10次时,观察到平均切割时间、表面粗糙度和直径的显著差异(P < 0.05),粗粒度金刚石旋转仪器与中粒度金刚石旋转仪器相比具有明显的磨损模式。结论:间接复合材料重复切割后的切割时间、表面粗糙度和直径的差异与仪器有关。粗粒度旋转仪器比中粒度旋转仪器劣化和磨损更大。实际意义:建议在计算机辅助设计和计算机辅助制造的复合材料上长期使用(切割10)中粒度金刚石旋转仪器。对于间接复合材料,建议切割10分钟或5分钟后更换金刚石旋转仪器。
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引用次数: 0
Identification of predictors for bone regeneration at the distal aspect of the second molar after impacted mandibular third-molar extraction. 下颌阻生第三磨牙拔除后第二磨牙远端骨再生预测因子的鉴定。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-09 DOI: 10.1016/j.adaj.2025.11.002
Sooshin Hwang, Jeong-Kui Ku, Pil-Young Yun

Background: The authors evaluated predictive factors for alveolar bone regeneration at the distal aspect of the second molar after mandibular third-molar extraction.

Methods: Cone-beam computed tomography (CBCT) data from 146 patients (161 cases) who underwent horizontal or mesioangular impacted mandibular third-molar extractions were analyzed. Preoperative and postoperative scans using CBCT obtained at least 6 months apart were evaluated; the mean (SD) follow-up period was 37.3 (24.6) months. Multiple linear regression analysis was performed to determine predictors of bone regeneration. Multicollinearity was assessed and regression assumptions were verified via residual analysis.

Results: The mean (SD) initial defect depth was 5.42 (2.07) mm, final defect depth was 3.89 (1.75) mm, healing ratio was 27.3% (17.7%), and age of patients was 25.7 (9.0) years (72 male, 74 female). Regression analysis identified initial defect depth, patient age, and distance from ramus to second molar (ramus class) as significant predictors (R2 = 0.713; P < .001); all variance inflation factor values were less than 2.0, indicating no significant multicollinearity. The predictive equation is: Y (final depth) = 0.243 + 0.636 × X₁ (initial depth) + 0.045 × X₂ (age) - 0.676 × X₃ (ramus class). Cases with initial defects greater than 6 mm or from 5 through 6 mm combined with a ramus Class I had a higher likelihood of limited bone recovery (> 4 mm final defect depth).

Conclusions: These findings emphasize the limited natural recovery of alveolar bone and the importance of initial defect depth, ramus class, and age in predicting outcomes and optimizing postoperative management.

Practical implications: Preoperative CBCT assessment of defect depth, ramus proximity, and patient age can help identify patients at risk of having limited bone regeneration.

背景:作者评估了下颌第三磨牙拔除后第二磨牙远端牙槽骨再生的预测因素。方法:对146例(161例)行水平或中角阻生下颌第三磨牙拔除术的患者进行锥形束计算机断层扫描(CBCT)分析。术前和术后CBCT扫描间隔至少6个月进行评估;平均(SD)随访时间为37.3(24.6)个月。采用多元线性回归分析确定骨再生的预测因素。评估多重共线性,并通过残差分析验证回归假设。结果:平均(SD)初始缺损深度5.42 (2.07)mm,最终缺损深度3.89 (1.75)mm,愈合率27.3%(17.7%),患者年龄25.7(9.0)岁,其中男性72例,女性74例。回归分析发现,初始缺陷深度、患者年龄和分支到第二臼齿(分支类别)的距离是重要的预测因素(R2 = 0.713; P < 0.001);所有方差膨胀因子值均小于2.0,说明多重共线性不显著。预测方程为:Y(最终深度)= 0.243 + 0.636 × X₁(初始深度)+ 0.045 × X₂(年龄)- 0.676 × X₃(分支类)。初始缺损大于6mm或5 - 6mm并伴有I级分支的病例骨恢复受限的可能性更高(最终缺损深度为4mm)。结论:这些发现强调了牙槽骨自然恢复的局限性,以及初始缺损深度、分支类型和年龄在预测预后和优化术后处理中的重要性。实际意义:术前CBCT评估缺损深度、分支接近程度和患者年龄可以帮助识别有骨再生受限风险的患者。
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引用次数: 0
An enlarging pigmented lesion of the bilateral hard palatal mucosa. 双侧硬腭黏膜色素病变扩大。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-08 DOI: 10.1016/j.adaj.2025.10.018
Leonardo Finotello, Jeffrey Goetz, Uzma Farooq, Alessandro Villa
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引用次数: 0
Navigating the complex regulatory landscape of some fluoride caries therapies in the United States: The burden to clinicians. 在美国对一些氟化物龋齿治疗的复杂监管环境进行导航:临床医生的负担。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-07 DOI: 10.1016/j.adaj.2025.04.013
Margherita Fontana, John Timothy Wright, Katrin Loeschner, Domenick T Zero
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引用次数: 0
Lost in translation: Naming, identity, and public perception in oral and maxillofacial surgery. 迷失在翻译中:口腔颌面外科的命名、身份和公众认知。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-07 DOI: 10.1016/j.adaj.2025.11.009
Tal Robbins Sastow, George Rumman, Harry Dym
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引用次数: 0
Association Directory 协会目录
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-01 DOI: 10.1016/S0002-8177(25)00698-1
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引用次数: 0
Satisfaction and quality of life of patients rehabilitated with digital complete dentures 全指义齿康复患者的满意度和生活质量:一项系统回顾和荟萃分析。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-01 DOI: 10.1016/j.adaj.2025.09.020
Beatriz de Camargo Poker MS, Helena Cristina Aguiar DDS, Arthur Augusto Martins e Silva MS, Lorena Mosconi Clemente MS, Pillar Gonçalves Pizziolo MS, Adriana Barbosa Ribeiro MS, PhD, Vinícius Sabedra DDS, Valdir Antônio Muglia MS, PhD, Cláudia Helena Silva-Lovato MS, PhD

Background

In this systematic review, the authors compared digital complete dentures with conventional complete dentures from the perspectives of patients and dentists.

Types of Studies Reviewed

Randomized clinical trials or nonrandomized studies in which the primary variables were the satisfaction and oral health–related quality of life of patients and secondary variables were dentist’s assessment of the quality of the dentures, masticatory efficiency, maximum voluntary bite force, and need for prosthetic maintenance. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were used, and the electronic search was conducted in 5 databases (ie, Embase, PubMed/MEDLINE, Web of Science, Scopus, and Google Scholar). The inclusion criteria were clinical randomized trials or nonrandomized studies in which researchers investigated computer-aided design and computer-aided manufacturing mucosa-supported complete dentures compared with conventional dentures in fully edentulous patients older than 18 years, of both sexes, and with good general and cognitive health. A risk of bias analysis was conducted using the Risk of Bias in Non-Randomised Studies of Interventions and Version 2 of the Cochrane risk of bias tool for randomized trials, in addition to a random-effects meta-analysis using standardized mean difference with 95% CI to quantitatively assess oral health–related quality of life and patient satisfaction scores.

Results

Twelve studies were included. The risk of bias was considered low in most studies. On the basis of the meta-analysis results, no significant differences were found between digital and conventional methods regarding quality of life and most satisfaction criteria, although satisfaction with milled, printed, and conventional complete dentures varied among studies.

Conclusions and Practical Implications

The findings suggest that digital complete dentures have been accepted by patients and encourage future clinical research. This systematic review is registered with PROSPERO, an international systematic review registry. The registration number is CRD42024543061.
背景:在这篇系统综述中,作者从患者和牙医的角度比较了指式全口义齿和传统全口义齿。综述的研究类型:随机临床试验或非随机研究,其中主要变量为患者的满意度和口腔健康相关生活质量,次要变量为牙医对假牙质量、咀嚼效率、最大自主咬合力和修复体维护需求的评估。采用系统评价和meta分析指南的首选报告项目,并在5个数据库(即Embase、PubMed/MEDLINE、Web of Science、Scopus和谷歌Scholar)中进行电子检索。纳入标准是临床随机试验或非随机研究,研究人员调查了计算机辅助设计和计算机辅助制造粘膜支持全口义齿与传统义齿在18岁以上无牙患者中的比较,不分性别,一般和认知健康状况良好。使用非随机干预研究的偏倚风险和Cochrane随机试验偏倚风险工具第2版进行偏倚风险分析,并使用95% CI的标准化平均差进行随机效应荟萃分析,定量评估口腔健康相关生活质量和患者满意度评分。结果:纳入12项研究。在大多数研究中,偏倚风险被认为很低。在荟萃分析结果的基础上,数字方法和传统方法在生活质量和大多数满意度标准方面没有发现显著差异,尽管对研磨、印刷和传统全口义齿的满意度在研究中有所不同。结论和实际意义:研究结果提示全口义齿已被患者所接受,并鼓励进一步的临床研究。本系统综述已在普洛斯彼罗注册,普洛斯彼罗是一家国际系统综述注册机构。注册号为CRD42024543061。
{"title":"Satisfaction and quality of life of patients rehabilitated with digital complete dentures","authors":"Beatriz de Camargo Poker MS,&nbsp;Helena Cristina Aguiar DDS,&nbsp;Arthur Augusto Martins e Silva MS,&nbsp;Lorena Mosconi Clemente MS,&nbsp;Pillar Gonçalves Pizziolo MS,&nbsp;Adriana Barbosa Ribeiro MS, PhD,&nbsp;Vinícius Sabedra DDS,&nbsp;Valdir Antônio Muglia MS, PhD,&nbsp;Cláudia Helena Silva-Lovato MS, PhD","doi":"10.1016/j.adaj.2025.09.020","DOIUrl":"10.1016/j.adaj.2025.09.020","url":null,"abstract":"<div><h3>Background</h3><div>In this systematic review, the authors compared digital complete dentures with conventional complete dentures from the perspectives of patients and dentists.</div></div><div><h3>Types of Studies Reviewed</h3><div>Randomized clinical trials or nonrandomized studies in which the primary variables were the satisfaction and oral health–related quality of life of patients and secondary variables were dentist’s assessment of the quality of the dentures, masticatory efficiency, maximum voluntary bite force, and need for prosthetic maintenance. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were used, and the electronic search was conducted in 5 databases (ie, Embase, PubMed/MEDLINE, Web of Science, Scopus, and Google Scholar). The inclusion criteria were clinical randomized trials or nonrandomized studies in which researchers investigated computer-aided design and computer-aided manufacturing mucosa-supported complete dentures compared with conventional dentures in fully edentulous patients older than 18 years, of both sexes, and with good general and cognitive health. A risk of bias analysis was conducted using the Risk of Bias in Non-Randomised Studies of Interventions and Version 2 of the Cochrane risk of bias tool for randomized trials, in addition to a random-effects meta-analysis using standardized mean difference with 95% CI to quantitatively assess oral health–related quality of life and patient satisfaction scores.</div></div><div><h3>Results</h3><div>Twelve studies were included. The risk of bias was considered low in most studies. On the basis of the meta-analysis results, no significant differences were found between digital and conventional methods regarding quality of life and most satisfaction criteria, although satisfaction with milled, printed, and conventional complete dentures varied among studies.</div></div><div><h3>Conclusions and Practical Implications</h3><div>The findings suggest that digital complete dentures have been accepted by patients and encourage future clinical research. This systematic review is registered with PROSPERO, an international systematic review registry. The registration number is CRD42024543061.</div></div>","PeriodicalId":17197,"journal":{"name":"Journal of the American Dental Association","volume":"157 1","pages":"Pages 57-69.e7"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145604759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Silent nights 寂静的夜晚
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-01 DOI: 10.1016/j.adaj.2025.11.008
Davis Thomas BDS, DDS, MSD, MSc Med, MSc , Mitchell Levine DMD, MS
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引用次数: 0
Do not let oral jewelry tarnish your smile 不要让口腔珠宝玷污了你的笑容
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-01 DOI: 10.1016/j.adaj.2025.11.004
Anita M. Mark
{"title":"Do not let oral jewelry tarnish your smile","authors":"Anita M. Mark","doi":"10.1016/j.adaj.2025.11.004","DOIUrl":"10.1016/j.adaj.2025.11.004","url":null,"abstract":"","PeriodicalId":17197,"journal":{"name":"Journal of the American Dental Association","volume":"157 1","pages":"Page 114"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patient values and preferences 患者的价值观和偏好:更好地共同决策的途径。
IF 3.5 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-01 DOI: 10.1016/j.adaj.2025.05.014
Julia Pimentel DDS, Alonso Carrasco-Labra DDS, MSc, PhD, Lyubov Lytvyn MSc, Abdullah Alalyani MSc, Michael Glick DMD
{"title":"Patient values and preferences","authors":"Julia Pimentel DDS,&nbsp;Alonso Carrasco-Labra DDS, MSc, PhD,&nbsp;Lyubov Lytvyn MSc,&nbsp;Abdullah Alalyani MSc,&nbsp;Michael Glick DMD","doi":"10.1016/j.adaj.2025.05.014","DOIUrl":"10.1016/j.adaj.2025.05.014","url":null,"abstract":"","PeriodicalId":17197,"journal":{"name":"Journal of the American Dental Association","volume":"157 1","pages":"Pages 3-5"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144649726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Journal of the American Dental Association
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