Introduction: Crestal bone loss is the bone resorption which occurs around the implant neck. Early crestal bone loss during the healing phase is considered an acceptable physiological change but, when the bone loss continues, it may result in increased mobility, leading to failure of the implant. Aim: The aim of the present study is to assess the crestal bone level changes between two dental implant systems in edentulous posterior mandible. Materials and methods: The study included patients who had undergone implant placement in the posterior mandible, between November 2020 to January 2021 in Saveetha Dental College and Hospitals, Chennai, India. Data was tabulated and entered in Excel, then was analysed using SPSS package software. p<0.05 was considered to be the level of statistical significance. Results and discussion: The study evidenced no significant difference between the two implant systems and the amount of bone loss. The implants placed equicrestally had a higher amount of crestal bone loss, compared to those placed subcrestally.Conclusions: Within the limitations of this study, no significant difference was observed between the two implant systems and the crestal bone loss. The amount of crestal bone loss determines the success of the implant.
Keywords:- crestal bone loss
- edentulous posterior mandible
- implant systems