Mucositis, Periimplantitis, Implant success and survival in periodontally diseased patients

The aim of this prospective study was to evaluate the prevalence of mucositis, periimplantitis, implant success and survival in partially edentulous subjects treated for generalized aggressive periodontitis (GAP) and in periodontally healthy subjects. Thirty five patients treated for GAP and eighty periodontally healthy patients orally rehabilitated with osseointegrated implants participated in the study. They were first examined 2 to 4 weeks before extraction of the non-retainable teeth (baseline), and 3 weeks after insertion of the final abutments. All further examinations were performed during a 3-month recall schedule over a 5 to 16 year period (mean 8.25 years). At every session clinical parameters were recorded. At 1, 3, 5, 10, and 15 years after insertion of the superstructure, a microbiological and radiographic examination was performed.The results showed implant survival rates of 100% in periodontally healthy subjects versus 96% in GAP subjects. The implant success rate was 33% in GAP subjects and 50% in periodontally healthy subjects. In GAP subjects, mucositis was present in 56% and periimplantitis in 26% of the implants. In periodontally healthy subjects, 40% of the implants showed mucositis and 10% periimplantitis. GAP subjects had a 5 times greater risk of implant failure, a 3 times greater risk of mucositis, and a 14 times greater risk of periimplantitis. These results suggest that subjects with treated GAP are more susceptible to mucositis and periimplantitis, with lower implant survival and success rates.

dental implants - mucositits - periimplantitis - success