Long-term results and survival rate of implant placed simultaneously with guided bone regeneration: a 2-year case series prospective study

Abstract

Abstract:

Research background and aim: The presence of appropriate dimensions of the available alveolar bone is one of the key factors that help in achieving osseointegration of dental implants. In cases where resorption of alveolar bone occurs horizontally or vertically; The application of bone augmentation using the guided bone regeneration (GBR) simultaneously with the application of dental implants or in a staged approach may be an acceptable treatment to achieve the success of these dental implants. This prospective case series study aimed to evaluate the long-term success and survival rate of implants placed in alveolar ridges grafted horizontally with guided bone regeneration simultaneously with the dental implant.

Materials and methods: A prospective case series study was conducted on 10 alveolar ridges in 10 patients who had 18 dental implants treated and followed up from September 2020 to November 2022. The dental implants were placed into these resorbed alveolar ridges horizontally, and then a beta-tricalcium phosphate graft with a resorbable collagen membrane was applied. The survival rate and success of dental implants were studied during the mentioned follow-up period, as well as the level of the proximal marginal bone after six months and 18 months of prosthetic phase.

Results: The results of the follow-up of this long-term study showed that all implants placed in the alveolar ridges that underwent guided bone regeneration met the success criteria for dental implants, and no failure cases were recorded for any of the implants placed. Therefore, the success rate of dental implants was 100%. The mean resorption of the proximal marginal bone after six months of prosthesis was 0.28±0.35 mm, and after 18 months was 0.45±0.50 mm.

Conclusions: Within the limits of this study, it can be concluded that the application of the guided bone regeneration technique using beta-tricalcium phosphate graft with resorbable collagen membrane and simultaneous with the placement of dental implants is an acceptable treatment for horizontally resorbed alveolar ridges.