Stability of All-Porcelain, Resin-Bonded Fixed Restorations With Different Designs: An In Vitro Study

Kern, Matthias; Schwarzbach, Wolfgang; Strub, Jörg R.
March 1992
International Journal of Prosthodontics;Mar/Apr1992, Vol. 5 Issue 2, p108
Academic Journal
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.


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