Long-term marginal bone loss in 217 machined-surface implants placed in 68 patients with 5 to 9 years of follow-up: a retrospective study.

Purpose: The aim of the present study was to evaluate marginal bone loss (mBL) adjacent to dental implants with a machined surface with at least 5 years of function.

Materials And Methods: Machined-surface implants with a minimum follow-up of 5 years were included in the study. Recorded clinical parameters included plaque and gingival bleeding indices, smoking habit (nonsmoker, 0 to 10 cigarettes/day, or more than 10 cigarettes/day), presence of periodontal disease (healthy or periodontally compromised), and compliance with periodontal maintenance.

Prevalence of peri-implant diseases. A cross-sectional study based on a private practice environment.

Aim: To determine the prevalence of peri-implant diseases in private practice patients enrolled in a periodontal maintenance programme.

Material And Methods: A cross-sectional study was carried out in patients with dental implants attending the dental clinic to comply with a periodontal maintenance programme between January and June 2010. Implants with at least 1 year of loading time (range: 1-18 years) were included.