[Compressive strength of metal-ceramic occlusal veneers].
Ceramometallic specimens, circular in section, of varying thickness and manufactured by means of different procedures, have been tested to destruction of the ceramic layer under a once-through continuously increasing force at defined points. Identical specimens were used to determine the number of load cycles under increasing continuous stress of 430 N until the ceramic layer failed. The fatigue strength increased with the thickness of the metallic layer and was further increased by a high inherent strength of the ceramic layer. In restorations with only a thin metallic layer (foil crowns) and/or low strength values of the metal (electroplated ceramic crowns) an overall thickness of the layers of more than 1.5 mm is recommended in the occlusal area to avoid premature failure.
Schwickerath
H
H
Bantelmann
U
U
D001732:Bite Force; D003442:Crowns; D003722:Dental Alloys; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D003801:Dental Veneers
D003722:Dental Alloys; D003776:Dental Porcelain
Belastbarkeit von metallkeramischen Verblendungen im okklusalen Bereich.