TY - JOUR
T1 - The effect of porcelain color on the hardness of luting composite resin cement
AU - Cardash, Harold S.
AU - Baharav, Haim
AU - Pilo, Raphael
AU - Ben-Amar, Ariel
PY - 1993/6
Y1 - 1993/6
N2 - Visible light- and dual-curing composite resin luting cements were cured under porcelain disks of different colors to examine the effect of porcelain color on surface hardness. Knoop microhardness measurements were made at exposure times of 48, 72, and 120 seconds. Higher levels of hardness were obtained with dual-cured resin. Visible light-cured resin irradiated through colored porcelain required more prolonged exposure times to reach a degree of hardness approaching that of dual-cure resin. From the standpoint of microhardness, dual-cured composite resin is preferred for luting porcelain restorations of ≥2 mm thickness.
AB - Visible light- and dual-curing composite resin luting cements were cured under porcelain disks of different colors to examine the effect of porcelain color on surface hardness. Knoop microhardness measurements were made at exposure times of 48, 72, and 120 seconds. Higher levels of hardness were obtained with dual-cured resin. Visible light-cured resin irradiated through colored porcelain required more prolonged exposure times to reach a degree of hardness approaching that of dual-cure resin. From the standpoint of microhardness, dual-cured composite resin is preferred for luting porcelain restorations of ≥2 mm thickness.
UR - http://www.scopus.com/inward/record.url?scp=0027619015&partnerID=8YFLogxK
U2 - 10.1016/0022-3913(93)90293-W
DO - 10.1016/0022-3913(93)90293-W
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AN - SCOPUS:0027619015
SN - 0022-3913
VL - 69
SP - 620
EP - 623
JO - Journal of Prosthetic Dentistry
JF - Journal of Prosthetic Dentistry
IS - 6
ER -