インプラント撤去症例の臨床的検討

抄録

Clinical evaluation of cases with unfavorable postoperative course after placement of implants at other dental clinics were performed at our department of oral and maxillofacial surgery.
The subjects were ten patients (four females, six males, aged 44 to 76 years), treated at our department from 1992 to 1997. The total number of removed implants were thirty, which were intraosseous implants. Implants were made of the following materials:eleven of alumina ceramic and nineteen of metal. Shape of implants were six of screw type, six of blade type, three of T type, five of pin type and eight of hand-made type. All cases suffered from osteitis around the implants, of which two were complicated with maxillary sinusitis and inferior alveolar nerve palsy. Ten of the fourteen cases, which visited our department, underwent removal of the complicated implants in our outpatient clinic and four were sent to the dental offices at which the implants were placed. It is necessary to establish a trust relationship in order to obtain preoperative informed consent and carry out follow-up after the prostheses is worn.