Marginal fit of titanium metal-ceramic crowns.
OBJECTIVE
This study aimed to compare the marginal fit of 2 kinds of metal-ceramic crowns-crowns cast from commercially pure titanium and Procera titanium crowns.


METHODS
Ten copings of each type were prepared, veneered with low-fusing porcelain, and bonded with glass-ionomer cement. Marginal fit was assessed before and after cementation, and the data were analyzed statistically.


RESULTS
There were significant differences among mean values of marginal fit between the groups. Cementation increases discrepancies in both groups.


CONCLUSIONS
Casting titanium has resulted in the highest discrepancies in marginal fit of both groups.
Jesús Suárez
María
M
Department of Buccofacial Prosthesis, Faculty of Odontology, University Complutense, Madrid, Spain. mjsuarez@odon.ucm.es
Lozano
José F L
JF
Paz Salido
María
M
Martínez
Francisco
F
D000704:Analysis of Variance; D002484:Cementation; D003442:Crowns; D003735:Dental Casting Technique; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D003801:Dental Veneers; D005899:Glass Ionomer Cements; D006801:Humans; D008277:Magnesium Oxide; D016876:Metal Ceramic Alloys; D011076:Polycarboxylate Cement; D017755:Prosthesis Fitting; D014025:Titanium; D015034:Zinc Oxide
D005899:Glass Ionomer Cements; D016876:Metal Ceramic Alloys; D011076:Polycarboxylate Cement; C077451:Procera; D003776:Dental Porcelain; D008277:Magnesium Oxide; C040235:Ketac-cem; D014025:Titanium; D015034:Zinc Oxide