Relative gap formation of resin-cemented ceramic inlays and dentin bonding agents.
The effect of dentin bonding agents (DBAs) on contraction gap formation at the cavity floor of resin-cemented ceramic inlays was investigated. Cylindrical dentin cavities were pretreated with one of 12 DBAs before luting of ceramic inlays with a dual-curing resin cement. Measurements of cross sections revealed that mean gap widths were reduced between 21% and 80% compared with control specimens prepared without a DBA. The extent of the gap reduction depended on the type of bonding agent. None of the dentin bonding agents tested were able to completely eliminate development of interfacial gaps.
Department of Fixed Prosthodontics, School of Dentistry, Oregon Health Sciences University, Portland, USA.
J A
JA
Sorensen
E C
EC
Munksgaard
D002484:Cementation / Q000379:methods; D003738:Dental Cements / Q000737:chemistry; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain; D017220:Dentin-Bonding Agents; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D008963:Molar; D011108:Polymers / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry
D003738:Dental Cements; D017220:Dentin-Bonding Agents; D011108:Polymers; D019279:Resin Cements; D003776:Dental Porcelain; C069103:Dual Cement