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

Inclusion Criteria: * • Military patients who had dental implants placed at DCRD between the period of 01 Jan 2017 and 31 Dec 2023. * Patients over the age of 18 (female) and 19 (male, to allow for recommended lower age limits for implant placement due to facial growth). * Healthy and medically compromised patients (diabetes mellitus type-2 (DM2), systemic steroid usage, immune-supressed patients, smoking habits). * Implants placed with concomitant grafting or in a site where socket-preservation procedure completed. * Patients with periodontal health as well as history of periodontal disease. * Dental Implant types to include Nobel Biocare; Parallel, Active, Branemark and SpeedyGroovy. * Implants with immediate, early, delayed and late implant placement pathways. * Implants restored with single unit and multi-unit fixed prostheses. * Minimum of 12-month follow-up data available. * Pre-operative long cone periapical (LCPA) radiographs available to view at surgical placement, implant restoration and follow-up (12-month). Exclusion Criteria: * • Implants placed outside of DPHC. * Implants placed in sites where a block-grafts or sinus floor elevation procedure completed. * Implants supporting removable prostheses. * Implants placed prior to- or after- closure of trial period. * Patients under the age of 18 (female) and 19 (male). * No follow-up LCPA. * Patients that died before pathway/ follow-up was completed.