Long-term observation of porous sapphire dental implants.
We used porous sapphire dental implants made of alumina clinically for 4 years 1 month, commencing September, 1984 until September, 1988. Subjects consisted of 18 men and 42 women 20-71 years old (mean age: 35 years). Sixty-five implants were inserted in 60 patients. Of these, 20 were clinical cases of an implant connected with natural teeth and 45 were free-standing cases. We conducted a follow-up study on these patients over a 23-year period. One implant in 1 patient had to be removed because of postoperative infection and 8 implants in 7 patients had to be removed because of fracturing or detachment of the porous-part. This paper reports 3 cases where implants remained in place for 21-23 years. These cases have all shown good long-term clinical progress.
Takahashi
Toshiyuki
T
Chiba Hospital General Dentistry, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba, Japan. totakaha@tdc.ac.jp
Sato
Toru
T
Hisanaga
Ryuichi
R
Miho
Otoaki
O
Suzuki
Yuta
Y
Tsunoda
Masatake
M
Nakagawa
Kan-Ichi
K
D000328:Adult; D000368:Aged; D000537:Aluminum Oxide; D003442:Crowns; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D003830:Denture, Partial, Fixed; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D016876:Metal Ceramic Alloys; D008875:Middle Aged; D016062:Porosity; D011379:Prognosis
D015921:Dental Implants; D016876:Metal Ceramic Alloys; D003776:Dental Porcelain; D000537:Aluminum Oxide