Prognostic factors for autotransplanted third molars with completely formed roots: A retrospective cohort study.

IF 3.1 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of the American Dental Association Pub Date : 2024-11-23 DOI:10.1016/j.adaj.2024.10.004

Jiajia Xia, Ziyu Ge, Yanzhen Zhang, Jue Shi, Zhijian Xie

{"title":"Prognostic factors for autotransplanted third molars with completely formed roots: A retrospective cohort study.","authors":"Jiajia Xia, Ziyu Ge, Yanzhen Zhang, Jue Shi, Zhijian Xie","doi":"10.1016/j.adaj.2024.10.004","DOIUrl":null,"url":null,"abstract":"Background: The autotransplant of third molars to replace missing teeth is gaining attention. This study aimed to analyze factors influencing the success, survival, and inflammatory root resorption (IRR) of autotransplanted third molars with completely formed roots.Methods: A total of 160 patients who underwent autotransplant of third molars with completely formed roots were evaluated retrospectively, involving 168 teeth. Preoperative, intraoperative, and postoperative variables were assessed to identify prognostic factors for success, survival, and IRR.Results: The average (SD) follow-up was 5.21 (1.99) years. The success, survival, and IRR rates were 75.0%, 91.1%, and 17.3%, respectively. Cox proportional hazards regression analysis revealed that both apical resection and retrofilling (ARR) (P < .001) and donor tooth replicas (P < .001 for success and IRR; P = .013 for survival) were associated significantly with success, survival, and IRR. Furthermore, root canal treatment timing and patient age significantly affected success and survival, respectively (P = .006 and P = .036). The use of donor tooth replicas significantly reduced both the surgical time (P < .001) and extraoral time of the donor tooth (P < .001), whereas ARR increased the extraoral time of the donor tooth (P = .002). The use of a single root donor tooth was associated with a reduced surgical time (P = .003).Conclusions: Using donor tooth replicas and avoiding ARR contributed to increased success and survival rates and prevented IRR.Practical implications: Third molars with completely formed roots are suitable donors for replacing missing teeth, provided that appropriate preoperative, intraoperative, and postoperative indications are considered.","PeriodicalId":17197,"journal":{"name":"Journal of the American Dental Association","volume":" ","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Dental Association","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.adaj.2024.10.004","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Background: The autotransplant of third molars to replace missing teeth is gaining attention. This study aimed to analyze factors influencing the success, survival, and inflammatory root resorption (IRR) of autotransplanted third molars with completely formed roots.

Methods: A total of 160 patients who underwent autotransplant of third molars with completely formed roots were evaluated retrospectively, involving 168 teeth. Preoperative, intraoperative, and postoperative variables were assessed to identify prognostic factors for success, survival, and IRR.

Results: The average (SD) follow-up was 5.21 (1.99) years. The success, survival, and IRR rates were 75.0%, 91.1%, and 17.3%, respectively. Cox proportional hazards regression analysis revealed that both apical resection and retrofilling (ARR) (P < .001) and donor tooth replicas (P < .001 for success and IRR; P = .013 for survival) were associated significantly with success, survival, and IRR. Furthermore, root canal treatment timing and patient age significantly affected success and survival, respectively (P = .006 and P = .036). The use of donor tooth replicas significantly reduced both the surgical time (P < .001) and extraoral time of the donor tooth (P < .001), whereas ARR increased the extraoral time of the donor tooth (P = .002). The use of a single root donor tooth was associated with a reduced surgical time (P = .003).

Conclusions: Using donor tooth replicas and avoiding ARR contributed to increased success and survival rates and prevented IRR.

Practical implications: Third molars with completely formed roots are suitable donors for replacing missing teeth, provided that appropriate preoperative, intraoperative, and postoperative indications are considered.

查看原文本刊更多论文

牙根完全成形的自体移植第三磨牙的预后因素：一项回顾性队列研究。

背景：自体移植第三磨牙以替代缺失牙的方法正受到越来越多的关注。本研究旨在分析影响牙根完全成形的第三磨牙自体移植的成功率、存活率和炎性牙根吸收（IRR）的因素：回顾性评估了160名牙根完全成形的第三磨牙自体移植患者，共涉及168颗牙齿。对术前、术中和术后变量进行了评估，以确定成功率、存活率和IRR的预后因素：平均（标清）随访 5.21（1.99）年。成功率、存活率和IRR分别为75.0%、91.1%和17.3%。Cox 比例危险回归分析表明，根尖切除和再充填（ARR）（P < .001）和供体牙复型（成功率和 IRR 均为 P < .001；存活率为 P = .013）与成功率、存活率和 IRR 显著相关。此外，根管治疗时机和患者年龄分别对成功率和存活率有显著影响（P = .006 和 P = .036）。供体牙复制品的使用大大缩短了手术时间（P < .001）和供体牙的口外时间（P < .001），而 ARR 则增加了供体牙的口外时间（P = .002）。使用单根供体牙可缩短手术时间（P = .003）：结论：使用供体牙复制品和避免 ARR 有助于提高成功率和存活率，并防止 IRR：实际意义：只要考虑到适当的术前、术中和术后适应症，牙根完全成形的第三磨牙是替代缺失牙的合适供体。

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分钟内获得全文求助全文

来源期刊

Journal of the American Dental Association 医学-牙科与口腔外科

CiteScore

5.30

自引率

10.30%

发文量

221

审稿时长

34 days

期刊介绍： There is not a single source or solution to help dentists in their quest for lifelong learning, improving dental practice, and dental well-being. JADA+, along with The Journal of the American Dental Association, is striving to do just that, bringing together practical content covering dentistry topics and procedures to help dentists—both general dentists and specialists—provide better patient care and improve oral health and well-being. This is a work in progress; as we add more content, covering more topics of interest, it will continue to expand, becoming an ever-more essential source of oral health knowledge.