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.
Sorensen
J A
JA
Department of Fixed Prosthodontics, School of Dentistry, Oregon Health Sciences University, Portland, USA.
Munksgaard
E C
EC
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