他院で埋入後経過不良のためインプラントを撤去した症例の臨床的検討および撤去後の補綴処置について

抄録

From April 1996 to March 2003, 34 patients with unsuccessful implants, which had been placed at other clinics,were treated in the Section of Oral Implantology of the Facilitated Hospital of Fukuoka Dental College.
The subjects were 23 females and 11 males, ranging inage from 48 to 80 years. Sixteen of the patients were in their 50s and 12 were in their 60s. In total, 62 implants were removed from 34 patients. These 62 implants included 13 Sapphire screw implants,13 metal blade implants, 5 Sapphire blade implants, 14 titanium endosseous implants, 15 hand-made metal implants, one subperiosteal frame implant and one bioglass implant.
After removal of these unsuccessful implants, 20 patients wanted their dentition to be restored with implant supported prostheses. Sixteen underwent implant restoration, 2 are currently waiting for wound healing, and 2 received removable dentures because of economic conditions and severe bone loss.
In total, 109 implants were placed in these 16 patients. Twenty-seven were placed in the same place as the implants that were removed and the length of these 17 implants was under 10 mm. One implant, which had been placed in the mandibular first molar site after removal of an infected implant, was lost because of infection 1 month after placement.