[A three-year clinical evaluation of galvano-ceramic bridges made by Ni-Cr pontic bonding galvano caps].
OBJECTIVE
To evaluate the clinical effect of galvano-ceramic bridges made by Ni-Cr pontic fired bonding galvano caps with highly temperature-resistant adhesive based on three-year clinical trials.


METHODS
A total of 29 galvano-ceramic bridges made by Ni-Cr pontic fired bonding on the galvano caps were used for 26 patients. Abutment teeth plaque indices (PI) were compared according to Silness and Löe standards and their papillary bleeding indices (PBI) according to Mazza standards before restoration and after 36 months' restoration. At the same time, the integrity and marginal fitness of galvano-ceramic bridges were observed.


RESULTS
The PBI at abutment teeth were higher than those before restoration, Wilcoxon test revealed significant difference. Their PI were lower than those before restoration, Wilcoxon test revealed significant difference. All the galvano-ceramic bridges were perfect in marginal fitness and color. The rate of integrity was 89.7% in the period of observation.


CONCLUSIONS
Galvano-ceramic bridges made by Ni-Cr pontic fired bonding galvano caps with highly temperature-resistant adhesive hold out good prospects for clinical use in fixed restoration.
Zhou
Tuan-feng
TF
Peking University School of Stomatology, Beijing 100034, China.
Zhang
Gui-rong
GR
Sun
Ping
P
Wang
Xin-zhi
XZ
D000328:Adult; D000044:Dental Abutments; D003764:Dental Materials; D017269:Dental Prosthesis Repair / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D016876:Metal Ceramic Alloys; D008875:Middle Aged; D055815:Young Adult
D003764:Dental Materials; D016876:Metal Ceramic Alloys