Risk factors for the failure of re-implanted dental implants: A 20-year retrospective study.

IF 4.2 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE
Cheol-Min Kim, Jong-Bin Lee, Heung-Sik Um, Jae-Kwan Lee
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引用次数: 0

Abstract

Background: Re-implantation of failed implants is common to maintain the original prosthetic plan; however, it may not always be ideal due to various factors. Few studies have thoroughly investigated the outcomes of re-implanted implants, while considering factors that can enhance their survival rates. Therefore, this study aimed to identify the risk factors that may contribute to the refailure of implants placed the second time by analyzing previously failed implants and evaluating their survival.

Methods: Of 10,666 dental implants placed in 4063 patients at the Department of Periodontics of the Gangneung-Wonju National University Dental Hospital between December 1999 and March 2021, 259 failed implants in 170 patients were evaluated through clinical and radiographic records for patient-, surgical-, implant-, and prosthesis-related factors; survival analysis was conducted for implants that met the inclusion criteria.

Results: Of the 259 failed implants, 80 second-time-placed implants met the inclusion criteria. Survival analysis showed that the 1-year survival rate of second-time-placed implants was 88.1%. Smoking (hazard ratio [HR] = 5.066, p = 0.081), implant surface (HR = 18.776, p < 0.01), and timing of reimplantation (HR = 0.086, p < 0.01) were identified as risk factors influencing the refailure of second-time-placed implants.

Conclusions: The survival rate of second-time-placed implants was lower than that of first-time-placed implants. The risk factors for second-time-placed implant failure were smoking, implant surface, and timing of reimplantation. To prevent further failure, previous failure factors should be analyzed and modifiable risk factors must be controlled before reimplantation.

再植牙失败的风险因素:一项为期 20 年的回顾性研究。
背景:为了保持原有的修复计划,对失败的种植体进行再植入是很常见的做法;然而,由于各种因素的影响,再植入的效果并不总是很理想。很少有研究对再次植入种植体的结果进行深入调查,同时考虑可提高其存活率的因素。因此,本研究旨在通过分析以前失败的种植体并评估其存活率,找出可能导致第二次种植失败的风险因素:在 1999 年 12 月至 2021 年 3 月期间,国立江陵-原州大学牙科医院牙周科为 4063 名患者植入了 10666 个种植体,通过临床和影像记录对 170 名患者的 259 个失败种植体进行了患者、手术、种植体和修复体相关因素的评估,并对符合纳入标准的种植体进行了存活率分析:结果:在 259 个失败的种植体中,有 80 个二次植入的种植体符合纳入标准。生存分析表明,二次植入种植体的 1 年生存率为 88.1%。吸烟(危险比 [HR] = 5.066,P = 0.081)、种植体表面(HR = 18.776,P二次植入种植体的存活率低于首次植入种植体。二次植入失败的风险因素是吸烟、植入体表面和再次植入的时间。为防止再次失败,应分析之前的失败因素,并在再次植入前控制可改变的风险因素。
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来源期刊
Journal of periodontology
Journal of periodontology 医学-牙科与口腔外科
CiteScore
9.10
自引率
7.00%
发文量
290
审稿时长
3-8 weeks
期刊介绍: The Journal of Periodontology publishes articles relevant to the science and practice of periodontics and related areas.
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