Influence of ceramic thickness on the polymerization of light-cured resin cement.
The curing of two light-activated resin cements under two ceramic materials was examined to assess the influence of ceramic thickness on polymerization. The degree of resin cure was determined by microhardness measurements (Knoop) on resin cement samples cured under five ceramic thicknesses with light exposures of 30 to 120 seconds. These cements cured under thin ceramic specimens with recommended exposures. With thick ceramics, both cements cured better under the glass-ceramic, but neither reached a level of maximum cure under the porcelain.
Blackman
R
R
Department of Restorative Dentistry, University of Texas Health Science Center, Dental School, San Antonio.
Barghi
N
N
Duke
E
E
D002516:Ceramics; D003188:Composite Resins; D003738:Dental Cements; D003776:Dental Porcelain; D006244:Hardness; D008027:Light; D008422:Materials Testing / Q000295:instrumentation
D003188:Composite Resins; D003738:Dental Cements; D003776:Dental Porcelain