Dental Implant Survival Rates: Comprehensive Insights from a Large-Scale Electronic Dental Registry
Guy Tobias, Tali Chackartchi, Doron Haim, Jonathan Mann, Mordechai Findler
Abstract
Background: This descriptive study aimed to assess the survival rates and outcomes of dental implants in one of the four national HMOs in Israel. Data are provided for the period from 1 January 2014 to 31 December 2022. Materials and Methods: This retrospective analysis utilized electronic medical records of patients who underwent dental implant placement during the specified period. Statistical analyses included chi-squared tests, Student’s t-tests, and generalized estimating equation (GEE) analyses to identify potential risk factors associated with early and late implant failures. Results: A total of 158,824 dental implants were placed in 53,874 patients. The overall implant failure rate was 2.21%, while the early failure rate during the osseointegration phase—before prosthetic reconstruction—was 1.56%. Significant associations with implant failure were observed for male patients (2.53% failure rate), implants in the maxillary molar region (3%), and the central incisor region (3.37%), approximately double the failure rates seen in other implant sites (p < 0.001). Conclusions: This extensive data analysis demonstrates a low overall failure rate for dental implants. The highest failure incidence occurred within the first year post-implantation, declining in subsequent years irrespective of rehabilitation status. Early failure risk factors differ based on various factors and should be carefully integrated into presurgical planning.