Effect of resin coating on adhesion of composite crown restoration.
The purpose of this study was to evaluate the effect of a resin coating technique on the microtensile bond strength (microTBS) of resin cement to dentin in composite crown restorations. Crown preparations were done on human molars. A resin coating material, Hybrid Bond, was immediately applied to the prepared dentin and light-cured, while the tooth without resin coating acted as the control. An impression of the resin-coated tooth was taken, and a composite crown fabricated on the working cast. The composite crown was then bonded with a resin cement, Chemiace II. MicroTBSs were measured at a crosshead speed of 1 mm/min, and the resin-coated group yielded significantly higher microTBSs than the non-coated group (p < 0.05). In terms of microTBS values between the axial and occlusal surfaces, no regional differences in resin-dentin bond strength were detected (p < 0.05). It was concluded that resin coating with Hybrid Bond significantly improved the microTBS of resin cement to dentin in composite crown restorations.
Islam
Md Rafiqul
MR
Cariology and Operative Dentistry, Graduate School, Tokyo Medical and Dental University, 5-45, Yushima 1-Chome, Bunkyo-ku, Tokyo, Japan. drrafiqulislam@gmail.com
Takada
Tsunehiko
T
Weerasinghe
Dinesh S
DS
Uzzaman
Md Akhtar
MA
Foxton
Richard M
RM
Nikaido
Toru
T
Tagami
Junji
J
D000704:Analysis of Variance; D020099:Coated Materials, Biocompatible; D003188:Composite Resins; D003442:Crowns; D001840:Dental Bonding; D017268:Dental Prosthesis Retention; D003799:Dental Stress Analysis; D003801:Dental Veneers; D003804:Dentin; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D008963:Molar; D019279:Resin Cements; D013718:Tensile Strength; D019231:Tooth Preparation, Prosthodontic
D020099:Coated Materials, Biocompatible; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C514345:Hybrid Bond; D019279:Resin Cements