2018 Volume 31 Issue 2 Pages 170-179
Implant survival rate is often used to determine the long-term success of implant treatment. However, it is not enough to understand the real conditions of patients. The purpose of this study was to clarify the long-term conditions of patients treated by dental implants. We sent a questionnaire to patients for whom at least 20 years had passed since their implant treatment. The patients were treated by a dentist of the Kyushu Implant Research Group. The questionnaire was sent to 1,168 patients and 509 patients responded (44%). Seventy-eight percent of patients reported having no trouble with their implant at all, 68% had no trouble with their own teeth, and 84% answered that they could eat well. Ninety-three percent of patients were satisfied with their implant treatment.
