抄録
Clinical analysis of 24 patients who had removed dental implant due to failure at the department of Oral and Maxillofacial Surgery, Asahi University School of Dentistry from June 1983 through July 1998 was reported. They had been treated dental implant therapy at other clinics.
The results were as follows:
1. Twenty-four patients were 15 males and 9 females aged 17 to 74 years.
2. Thirty-five implants had been removed from 24 patients.Those implants included 20 plate type, 10 cylinder type,and 5 pin type implants. The superstructures of implants were connected to natural teeth in 26 cases and individual implants in 9 cases. Only 2 implants in this study were osseointegration implants.
3. The most (19 cases) of reasons to remove were mobility of implants and/or fibrous tissue with surrounding inflammation. Other reasons were maxillary sinusitis (2 cases), paralysis of the inferior alveolar nerve (2 cases), and severe sensitivity (1 case).
4. Nine patients in this study have systemic diseases.
