[Long-term observation of 920 porcelain fused to metal prostheses].
OBJECTIVE
To evaluate the long-term clinical results of porcelain fused to metal prostheses.


METHODS
Since January 1995, 920 porcelain fused to metal prostheses were fabricated. The long-term outcome were evaluated according to the condition of the prosthese, abutment and the periodontal tissue in the respects of successful rate and causes of failure.


RESULTS
74 patients were found to be during the follow up period, including 36 anterior crowns (46 units), 18 posterior crowns (22 units), 12 percentage of anterior bridges and 8 posterior bridges. The overall failure rate was 8.04%, 4.84% for crown, 8.77% for bridge. The failed prostheses was 5.39%.


CONCLUSIONS
Porcelain fused to metal prostheses is an ideal method for restoration. The standard process both for the clinician and the technician must be obeyed to improve the success rate.
Jiang
Yong-Lin
YL
Department of Prosthodontics, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
Sun
Jian
J
Weng
Wei-Min
WM
Zhang
Fu-Qiang
FQ
D003442:Crowns; D000044:Dental Abutments; D003776:Dental Porcelain / Q000627:therapeutic use*; D017266:Dental Prosthesis; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D003829:Denture, Partial; D006801:Humans; D008422:Materials Testing; D016876:Metal Ceramic Alloys; D013997:Time Factors; D016896:Treatment Outcome
D016876:Metal Ceramic Alloys; D003776:Dental Porcelain