Effect of resin coating as a means of preventing marginal leakage beneath full cast crowns.
The purpose of this study was to evaluate the effectiveness of resin coating as a means of preventing marginal leakage beneath full cast crowns which were emplaced using different cements. Standard full cast crown preparation was made on 64 extracted premolars. These samples were then divided into four groups, with half of each group coated with dentin coating material after preparation. Crowns were cemented onto the teeth using zinc cement, Fuji I, Vitremer, or C&B Metabond. The samples were thermal-cycled for 10,000 cycles. They were then immersed in erythrosine solution, sectioned, and observed under a microscope. Microleakage analyses were performed using a 0-4 point system. The data were statistically analyzed. There were significant differences between the coated specimens and the uncoated specimens using Fuji I and Vitremer. The results showed that a resin coating could decrease the amount of marginal leakage when applied with these two cements.
Kosaka
Satomi
S
Department of Fixed Prosthodontics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
Kajihara
Hirotada
H
Kurashige
Hisanori
H
Tanaka
Takuo
T
D001641:Bicuspid; D001896:Boron Compounds; D002484:Cementation / Q000379:methods; D003188:Composite Resins; D003442:Crowns; D003763:Dental Leakage / Q000517:prevention & control*; D003804:Dentin; D005899:Glass Ionomer Cements; D006047:Gold Alloys; D006801:Humans; D007764:Lacquer; D008689:Methacrylates; D008768:Methylmethacrylates; D011897:Random Allocation; D019279:Resin Cements; D012117:Resins, Synthetic; D018709:Statistics, Nonparametric; D019231:Tooth Preparation, Prosthodontic; D015036:Zinc Phosphate Cement
D001896:Boron Compounds; D003188:Composite Resins; D005899:Glass Ionomer Cements; D006047:Gold Alloys; D008689:Methacrylates; D008768:Methylmethacrylates; D019279:Resin Cements; D012117:Resins, Synthetic; C084550:Vitremer; C084541:Fuji glass-ionomer lining cement; D015036:Zinc Phosphate Cement; C049495:Super-bond