[Clinical evaluation of ceramic and titanium abutment for implant-supported all-ceramic single crown].
OBJECTIVE
To evaluate clinical performances of ceramic and titanium abutments for implant-supported all-ceramic single crown.


METHODS
Nineteen patients with loss of maxillary anterior teeth were restored with implant-supported In-Ceramic all-ceramic single crowns. They were divided into two groups based on the type of abutment adopted, 8 in CerAdapt abutment group (group A) and 11 in TiAdapt abutment group (group B). Esthetic results were evaluated with modified USPHS standard. Mucosal bleeding and marginal bone loss of each crown were recorded at 6, 12, 18, and 24 months after restoration respectively. All data were analyzed in SPSS 10.0 using Chi-square test and t-test.


RESULTS
None of implants and all-ceramic crowns failed. One CerAdapt abutment fractured at 15 months after restoration. Eight crowns scored A in group A and 10 in group B. Soft tissues around implant appeared healthy. Mean value of marginal bone loss in 2 years was 0.70 mm for group A and 0.77 mm for group B. There was no significant differences in the esthetic results, mucosal bleeding, and marginal bone loss between group A and group B (P > 0.05).


CONCLUSIONS
Satisfactory esthetic results could be achieved with both CerAdapt ceramic abutment and TiAdapt titanium abutment for implant-supported all-ceramic single crown. No negative influence produced by abutments on peri-implant tissue was observed during short-term restoration.
Li
Zhi-Yong
ZY
Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.
Niu
Wei
W
Fang
Wei
W
Hu
Jian
J
Wang
Yi-Ning
YN
D000328:Adult; D003442:Crowns; D000044:Dental Abutments; D019250:Dental Implants, Single-Tooth; D003776:Dental Porcelain; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D014025:Titanium; D055815:Young Adult
D003776:Dental Porcelain; D014025:Titanium