Peri-implant Disease: Pathogenesis, Risk Factors, Diagnosis, Prevention and Treatment
Previous Periodontal Disease

Prospective studies have shown that patients with history of generalized aggressive periodontitis are more susceptible to peri-implantitis.²⁰ Subgingival tissues around implants show higher levels of periopathogenic and superinfecting bacteria compared to sites from non-periodontal disease patients.²¹ Other studies have found that while implants are a viable treatment option in sockets affected by chronic periapical pathoses, the risk of implant failure is increased when placed adjacent to teeth with periapical radiolucencies.²²