Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.
Department of Periodontics, University of Louisville School of Dentistry, Louisville, Kentucky, USA.
J Periodontol. 2021 Nov;92(11):1522-1535. doi: 10.1002/JPER.21-0012. Epub 2021 Apr 5.
The aim of this study was to determine if a previous history of periodontitis according to the preset definitions of the 2017 World Workshop is correlated with increased implant failure, and occurrence and severity of peri-implantitis (PI).
A retrospective analysis of patients with a history of periodontitis who received nonsurgical and, if indicated, surgical corrective therapy prior to implant placement was performed. Periodontitis stage and grade were determined for each included patient based on data from the time of initiation of active periodontal therapy. Cox Proportional Hazard Frailty models were built to analyze the correlation between stage and grade of periodontitis at baseline with implant failure, as well as occurrence and severity of PI.
Ninety-nine patients with a history of periodontitis receiving 221 implants were followed for a mean duration of 10.6 ± 4.5 years after implant placement. Six implants (2.7%) failed and a higher rate of implant failure due to PI was found for Grade C patients (P < 0.05), whereas only an increased trend was seen for Stages III and IV compared with I and II. Grading significantly influenced the risk of marginal bone loss (MBL) >25% of the implant length (P = 0.022) in PI-affected implants. However, a direct correlation between higher-level stage and grade and PI prevalence was not recorded.
No statistically significant association between periodontitis stage or grade and the prevalence of PI was found. However, when PI was diagnosed, there was a relationship between periodontitis grade and severity of PI or the occurrence of implant failure.
本研究旨在确定根据 2017 年世界研讨会预设定义的牙周炎既往史是否与种植体失败增加以及种植体周围炎（PI）的发生和严重程度相关。
对患有牙周炎病史的患者进行回顾性分析，这些患者在植入前接受了非手术治疗，如果需要，还接受了手术矫正治疗。根据开始积极牙周治疗时的数据，为每位纳入患者确定牙周炎的阶段和等级。建立 Cox 比例风险脆弱性模型，以分析基线时牙周炎的阶段和等级与种植体失败以及 PI 的发生和严重程度之间的相关性。
99 例患有牙周炎病史的患者在植入后接受了 221 个种植体，平均随访 10.6±4.5 年。有 6 个种植体（2.7%）失败，C 级患者的种植体失败因 PI 导致的比例较高（P<0.05），而 III 期和 IV 期与 I 期和 II 期相比，仅呈现出增加的趋势。分级显著影响 PI 受累种植体的边缘骨丧失（MBL）>25%种植体长的风险（P=0.022）。然而，并未记录到较高阶段和等级与 PI 患病率之间存在直接相关性。
未发现牙周炎阶段或等级与 PI 患病率之间存在统计学显著关联。然而，当诊断出 PI 时，牙周炎等级与 PI 的严重程度或种植体失败的发生之间存在关系。
