Inclusion Criteria:  Inclusion criteria All patients (>18 years old), who were undergoing antiretroviral therapy at the same hos-pital, who had undergone prosthetic rehabilitation using one or more dental implants, with at least one year of follow-up after loading, and who had returned for a maintenance ap-pointment were considered for inclusion.  Exclusion Criteria:  Exclusion criteria Patients who discontinued antiretroviral therapy, patients not undergoing therapy, patients whose previous radiographs and data on bleeding on probing and PPD at gingival level were unknown, patients with decompensated systemic diseases (for example, decompen-sated diabetes mellitus), patients treated with drugs that affect the bone turnover (for ex-ample, bisphosphonates), and patients under 18 years of age were not included in this study.