Stability of all-porcelain, resin-bonded fixed restorations with different designs: an in vitro study.
The strength of resin-bonded, all-ceramic fixed partial dentures with different framework and prosthesis designs was evaluated. Metal dies were fabricated from a cast of a patient missing the left central incisor and the adjacent teeth were prepared to receive an all-ceramic, resin-bonded prosthesis. Framework designs were standardized and at least 10 samples were made for testing each design. Labial veneering of the pontic with Vitadur-N significantly decreased the stability compared with that of the unveneered In-Ceram framework. Circumferential veneering of the pontic and additional proximal box preparation yielded the strongest units.
Kern
M
M
School of Dentistry, Albert-Ludwigs University.
Schwarzbach
W
W
Strub
J R
JR
D000537:Aluminum Oxide; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D003779:Denture Design; D003781:Denture Retention; D016379:Denture, Partial, Fixed, Resin-Bonded; D006801:Humans; D011475:Prosthesis Failure
D003776:Dental Porcelain; C070870:In-Ceram; C058236:Vitadur N; D000537:Aluminum Oxide