Survival and Success Rates of External- and Internal- Connection Dental Implants Placed Within the United Kingdom Armed Forces.

This is a retrospective cohort study that evaluates the survival (Outcome 1) of dental implant systems (external connection (Cohort 1) and internal connection (Cohort 2) and the effectiveness of maintaining crestal bone levels (Outcome 2), placed within United Kingdom Armed Forces personnel. The secondary objectives include: assessment of block bone grafting on outcome, assessment of restoration (bridge vs crown on outcome) and assessment of placement technique (immediate, early, delayed placement). Inclusion criteria: all military patients that received dental implants since 2014-2024. Exclusion criteria: military patients that have not received radiographic review or follow-up of the dental implant or who have left service or have a follow-up that is less than 12-months post placement of the dental implant..