Dental implant failure rates and associated risk factors.

To guide treatment planning by analyzing the rates of dental implant failure to determine associated risk factors.All consecutively treated patients from January 1982 until January 2003 were included in a retrospective cohort study, as defined in the hierarchy of evidence for dental implant literature. Data regarding gender, age, implant location, bone quality, bone volume, and medical history were recorded. Correlations between these data and...