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Survival analysis of implants after surgical treatment of peri-implantitis based on bone loss severity and surgical technique: a retrospective study.
- Source :
- BMC Oral Health; 5/22/2023, Vol. 23 Issue 1, p1-10, 10p
- Publication Year :
- 2023
-
Abstract
- Background: Few trials have compared the results of surgical treatment for peri-implantitis based on severity of peri-implantitis and surgical method. This study investigated the survival rate of implants based on type of surgical method used and initial severity of peri-implantitis. Classification of severity was determined based on bone loss rate relative to fixture length. Methods: Medical records of patients who underwent peri-implantitis surgery from July 2003 to April 2021 were identified. Classification of peri-implantitis was divided into 3 groups (stage 1: bone loss < 25% (of fixture length), stage 2: 25% < bone loss < 50%, stage 3: bone loss > 50%) and performance of resective or regenerative surgery was investigated. Kaplan-Meier survival curves and Cox hazards proportional models were used to analyze the cumulative survival rate of implants. Median survival time, predicted mean survival time, hazard ratio (HR), and 95% confidence interval (CI) were calculated. Results: Based on Kaplan-Meier analysis, 89 patients and 227 implants were included, and total median postoperative survival duration was 8.96 years. Cumulative survival rates for stage 1, 2, and 3 were 70.7%, 48.9%, and 21.3%, respectively. The mean survival time for implants in stage 1, 2, and 3 was 9.95 years, 7.96 years, and 5.67 years, respectively, with statistically significant difference (log-rank p-value < 0.001). HRs for stage 2 and stage 3 were 2.25 and 4.59, respectively, with stage 1 as reference. Significant difference was not found in survival time between resective and regenerative surgery groups in any peri-implantitis stage. Conclusions: The initial bone loss rate relative to the fixture length significantly correlated with the outcome after peri-implantitis surgery, demonstrating a notable difference in the long-term survival rate. Difference was not found between resective surgery and regenerative surgery in implant survival time. Bone loss rate could be utilized as a reliable diagnostic tool for evaluating prognosis after surgical treatment, regardless of surgical method used. Trial registration: Retrospectively registered. (KCT0008225) [ABSTRACT FROM AUTHOR]
- Subjects :
- DENTAL implants
CONFIDENCE intervals
BONE resorption
PERIODONTITIS
TIME
ACQUISITION of data
RETROSPECTIVE studies
SEVERITY of illness index
SURVIVAL rate
SURVIVAL analysis (Biometry)
MEDICAL records
KAPLAN-Meier estimator
DESCRIPTIVE statistics
ELECTRONIC health records
ODDS ratio
PERI-implantitis
PROPORTIONAL hazards models
DISEASE complications
EVALUATION
Subjects
Details
- Language :
- English
- ISSN :
- 14726831
- Volume :
- 23
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- BMC Oral Health
- Publication Type :
- Academic Journal
- Accession number :
- 163850156
- Full Text :
- https://doi.org/10.1186/s12903-023-02981-5