Survivability of Lithium Disilicate CAD/CAM Restorations Delivered by Predoctoral Students

IF 1.6 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Dental Education Pub Date : 2025-03-03 DOI:10.1002/jdd.13875

Cecilia Tran, Sunshine Lee, Feng Gao, Sunil Philip, Allan Pan, Charlotte Bolch, John Mitchell, Marcela R. Carrilho, Timothy Toepke

{"title":"Survivability of Lithium Disilicate CAD/CAM Restorations Delivered by Predoctoral Students","authors":"Cecilia Tran, Sunshine Lee, Feng Gao, Sunil Philip, Allan Pan, Charlotte Bolch, John Mitchell, Marcela R. Carrilho, Timothy Toepke","doi":"10.1002/jdd.13875","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Objectives</h3>\n \n <p>With the increasing incorporation of digital workflows into the daily procedures of dental schools, it becomes essential to assess the competence of new generations of dentists to provide the best care when using these technologies. The aim of this retrospective study was to evaluate the survivability of monolithic lithium disilicate (LiDi) restorations prepared and delivered by predoctoral dental students. The primary variable investigated was the service time of the restorations, that is, the time the restorations were in clinical function, encompassing the time from the moment they were placed until failure and/or the last follow-up evaluation. Additionally, as secondary variables, the luting agent used, the cause of failure or replacement, as well as the determinants related to predoctoral student provider and patient were also evaluated.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>After IRB protocol approval, a list of patients who received 4515 CAD/CAM restorations between January 2014 and September 2022 was mined from Axium. A total of 3700 cases were selected based on the criteria of inclusion, monolithic LiDi restorations designed and delivered by predoctoral junior and senior students. Survivability was calculated for included patient charts using Kaplan-Meier survival analysis. The effect of student-provider year, restoration type, tooth restored, cement used, and patient age, sex, and reported bruxism behavior was evaluated using Cox regression models.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>At 98 months, out of those 3700 restorations, 26 did not show any record as follow-up and, therefore, were excluded from analysis, and 288 failed (i.e., 7.8% of total included in the study). The survival rate was 92.2%, and the survival probability for LiDi CAD/CAM restorations was greater than 84%. Failure modes were as follows: 31.6% debonding, 20% LiDi fracture, 14.6% recurrent caries, 14% endodontic complication, 10.4% open margin, and 9.4% for other reasons.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Provider and patient-related factors affected survivability of LiDi CAD/CAM restorations. Survivability of LiDi CAD/CAM restorations designed and delivered by predoctoral students resulted in comparable survivability to that of practicing clinicians.</p>\n </section>\n </div>","PeriodicalId":50216,"journal":{"name":"Journal of Dental Education","volume":"89 10","pages":"1495-1505"},"PeriodicalIF":1.6000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Dental Education","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jdd.13875","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Objectives

With the increasing incorporation of digital workflows into the daily procedures of dental schools, it becomes essential to assess the competence of new generations of dentists to provide the best care when using these technologies. The aim of this retrospective study was to evaluate the survivability of monolithic lithium disilicate (LiDi) restorations prepared and delivered by predoctoral dental students. The primary variable investigated was the service time of the restorations, that is, the time the restorations were in clinical function, encompassing the time from the moment they were placed until failure and/or the last follow-up evaluation. Additionally, as secondary variables, the luting agent used, the cause of failure or replacement, as well as the determinants related to predoctoral student provider and patient were also evaluated.

Methods

After IRB protocol approval, a list of patients who received 4515 CAD/CAM restorations between January 2014 and September 2022 was mined from Axium. A total of 3700 cases were selected based on the criteria of inclusion, monolithic LiDi restorations designed and delivered by predoctoral junior and senior students. Survivability was calculated for included patient charts using Kaplan-Meier survival analysis. The effect of student-provider year, restoration type, tooth restored, cement used, and patient age, sex, and reported bruxism behavior was evaluated using Cox regression models.

Results

At 98 months, out of those 3700 restorations, 26 did not show any record as follow-up and, therefore, were excluded from analysis, and 288 failed (i.e., 7.8% of total included in the study). The survival rate was 92.2%, and the survival probability for LiDi CAD/CAM restorations was greater than 84%. Failure modes were as follows: 31.6% debonding, 20% LiDi fracture, 14.6% recurrent caries, 14% endodontic complication, 10.4% open margin, and 9.4% for other reasons.

Conclusions

Provider and patient-related factors affected survivability of LiDi CAD/CAM restorations. Survivability of LiDi CAD/CAM restorations designed and delivered by predoctoral students resulted in comparable survivability to that of practicing clinicians.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

博士生提供的二硅酸锂CAD/CAM修复的存活率。

随着数字工作流程越来越多地纳入牙科学校的日常程序，评估新一代牙医在使用这些技术时提供最佳护理的能力变得至关重要。本回顾性研究的目的是评估整体二硅酸锂（LiDi）修复体的存活率，这些修复体是由牙科博士生准备和交付的。研究的主要变量是修复体的使用时间，即修复体处于临床功能的时间，包括从放置到失效和/或最后一次随访评估的时间。此外，作为次要变量，使用的治疗剂，失败或更换的原因，以及与博士前学生提供者和患者相关的决定因素也进行了评估。方法：在IRB方案批准后，从Axium提取了2014年1月至2022年9月期间接受4515例CAD/CAM修复的患者名单。根据纳入标准，由博士预科学生设计和交付的单片LiDi修复体共选择3700例。采用Kaplan-Meier生存分析计算纳入患者图表的生存能力。使用Cox回归模型评估学生提供年份、修复类型、修复的牙齿、使用的骨水泥、患者年龄、性别和报告的磨牙行为的影响。结果：在98个月时，3700个修复体中，26个没有任何随访记录，因此被排除在分析之外，288个失败（即占研究总数的7.8%）。成活率为92.2%，LiDi CAD/CAM修复体成活率大于84%。失效方式为：脱粘31.6%，利地骨折20%，复发龋14.6%，牙髓并发症14%，开缘10.4%，其他原因9.4%。结论：提供者和患者相关因素影响LiDi CAD/CAM修复体的存活率。由博士生设计和交付的LiDi CAD/CAM修复体的存活率与执业临床医生的存活率相当。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Dental Education 医学-牙科与口腔外科

CiteScore

3.50

自引率

21.70%

发文量

274

审稿时长

3-8 weeks

期刊介绍： The Journal of Dental Education (JDE) is a peer-reviewed monthly journal that publishes a wide variety of educational and scientific research in dental, allied dental and advanced dental education. Published continuously by the American Dental Education Association since 1936 and internationally recognized as the premier journal for academic dentistry, the JDE publishes articles on such topics as curriculum reform, education research methods, innovative educational and assessment methodologies, faculty development, community-based dental education, student recruitment and admissions, professional and educational ethics, dental education around the world and systematic reviews of educational interest. The JDE is one of the top scholarly journals publishing the most important work in oral health education today; it celebrated its 80th anniversary in 2016.