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- Title
Clinical outcomes and risk factor analysis of dental implants inserted with lateral maxillary sinus floor augmentation: A 3‐ to 8‐year retrospective study.
- Authors
Zhang, Liefen; Zhou, Chuan; Jiang, Jimin; Chen, Xiaoyu; Wang, Yaoqiong; Xu, Antian; He, Fuming
- Abstract
Aim: To evaluate the 3‐ to 8‐year outcomes of dental implants placed with lateral sinus floor augmentation (LSFA) and to identify factors affecting implant survival. Materials and Methods: This retrospective study was performed by screening all implants placed with LSFA procedures, which were conducted between January 2012 and December 2016. Subantral bone gain (SABG) and apical bone height (ABH) were assessed using panoramic radiographs. The cumulative survival rate of implants was analysed using life‐table analysis and Kaplan–Meier survival curves. The influential risk factors affecting survival were assessed using univariate log‐rank tests and multivariable mixture cure rate model. Implant complications were recorded. Results: Based on the established criteria, a total of 449 patients (760 implants) were included in this study. In the 3‐ to 8‐year follow‐up (mean ± SD, 5.81 ± 1.33 years), 15 implants in 14 patients failed, with a CRS of 96.81% on an implant basis and 95.07% on a patient basis. A history of periodontitis and poor compliance with supportive periodontal treatment was associated with a significantly higher risk of implant failure at both implant and patient levels. Significant decreases in ABH occurred during each yearly interval except for 3 years. A similar trend has been observed for SABG at 1, 2, 6 and 8 years. The total complication rate was 31.84% on implant basis, with peri‐implant mucositis (21.58%) being the most frequent biologic complication and porcelain cracking (5.00%) being the most common technical complication. Conclusions: Implant with LSFA is a reliable treatment option in atrophic maxilla. A history of periodontitis without regular supportive periodontal treatment was identified as a predictor for implant failure. Slight but significant shrinkage of vertically augmented bone can be observed after implant placement.
- Subjects
MAXILLARY sinus surgery; RISK factors of periodontal disease; DENTAL implants; RISK assessment; MUCOSITIS; SURVIVAL rate; RESEARCH funding; TREATMENT effectiveness; DESCRIPTIVE statistics; RETROSPECTIVE studies; SURGICAL complications; KAPLAN-Meier estimator; LOG-rank test; BONE grafting; STATISTICS; DENTAL ceramics; TIME; PERIODONTITIS; DISEASE risk factors
- Publication
Journal of Clinical Periodontology, 2024, Vol 51, Issue 5, p652
- ISSN
0303-6979
- Publication type
Article
- DOI
10.1111/jcpe.13947