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Single Implant Retained Overdenture Treatment Protocol: A Systematic Review and Meta‐Analysis
Author(s) -
Padmanabhan Harini,
Kumar S. Madhan,
Kumar V. Anand
Publication year - 2020
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/jopr.13133
Subject(s) - medicine , dentistry , implant , meta analysis , prosthesis , survival rate , dental prosthesis , orthodontics , surgery
Purpose This systematic review was undertaken to establish the most favourable protocol to treat an edentulous mandible with a single implant‐retained overdenture. The formulated PICO question was: “Which surgical and prosthetic protocols result in the highest survival and complication rates of implants and prostheses employed in a single implant retained overdenture for the rehabilitation of a completely edentulous mandibular ridge?” Materials and Methods A structured literature search was conducted using the following databases; PubMed, ScienceDirect, COCHRANE, LILACS, IndeMED, OVID, EMBASE, NIH Clinical Trials for reports related to the single implant‐retained overdenture treatment. Only English articles were included. Publications with a minimum follow up time of 1 year and above were included for meta‐analysis. A Poisson regression model was applied to estimate the survival rates of the implant and prosthesis employed. Results The electronic database search yielded 2083 titles and abstracts; and a total of 17 were selected for the systematic review, of which 11 studies were subjected to meta‐analysis. The implants showed high estimated five and 10‐year survival rates of 91.93% and 84.62%, respectively. Implants that were delayed loaded showed the greatest survival rates, while immediately loaded implants presented with higher survival rates at five ( p = 0.849) and 10 years ( p = 0.464) when compared to early loaded implants. The greatest number of fractures were associated with ball abutments with an event rate of 10.8 (95% CI: 10.5‐11.09) per 100 prosthesis years, while locator abutments showed a greater number of maintenance events with an event rate of 16.84(95% CI:16.01‐17.66) per 100 prosthesis years. Conclusion Single implant‐retained overdenture treatment is a cost‐effective, minimally invasive and simple treatment that can be used to restore function and aesthetics to edentulous patients, with relatively high implant and prosthesis success rates and minimal complications.