Physical properties of fixed prosthodontic, resin composite luting agents.
This study determined and compared physical properties of six fixed prosthodontic resin composite luting agents and one control. Inorganic filler content, compressive strength, diametral tensile strength, film thickness, and Knoop hardness were determined. The amounts of filler and the physical properties varied widely among materials. One material, which contained a minimal amount of filler, underwent so much plastic deformation that its strengths could not be measured. All other materials demonstrated high strengths. The materials with the least filler demonstrated the least resistance to indentation. The material with the lowest film thickness had not set at the time of measurement, 10 minutes after mixing. Most materials had unacceptable film thicknesses. Only one material demonstrated acceptable physical properties throughout the study.
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Department of Restorative Dentistry, School of Dentistry, University of Southern California, Los Angeles 90089-0641.
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D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D001896:Boron Compounds; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003188:Composite Resins / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D006244:Hardness; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates; D010710:Phosphates / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D019279:Resin Cements; D013718:Tensile Strength
C074864:All-Bond system; D001896:Boron Compounds; D003188:Composite Resins; D003738:Dental Cements; D017220:Dentin-Bonding Agents; C084549:Infinity resin; D008689:Methacrylates; D008768:Methylmethacrylates; D010710:Phosphates; D011140:Polyurethanes; D019279:Resin Cements; C084548:Thin Film Cement; D017438:Bisphenol A-Glycidyl Methacrylate; C031892:biomer; C040187:ultrabond; C052304:Panavia EX; C049495:Super-bond