RESUMO
In restorative dentistry, selecting the proper material is an important factor for clinical success. The objective of this study was clinical evaluation of survival time of three tooth color materials in primary anterior teeth. In this interventional clinical trial study, 94 deciduous anterior teeth [36 teeth in boys, 58 teeth in girls] belonging to 3-5 year old children in Pediatric Department of Mashhad Faculty of Dentistry, Iran were selected. Selective dental materials included compoglass, glass-ionomer Fuji II LC, and composite resin. The data were analyzed with Kaplan-Meyer and Log rank test. compoglass had the highest survival time in comparison with composite and glass-ionomer. Nine months retention rate for teeth restored with compoglass, composite resin and glass-ionomer were estimated: 95%, 21%, and 12.5%, respectively. Compoglass can be a suitable material for anterior primary teeth restoration
RESUMO
The purpose of this study is to compare and determine the role of H3Po4 and polyacrylic acid in shear bond strength of Fuji II LC and Compoglass on dentin of primary teeth. 90 sound primary molars were selected. Enamel reduction was done until smooth dentinal occlusal surface was achieved. The teeth then were randomly divided into six groups. A plastic mold was prepared and selected material was applied in half of the mold and light cured. The samples were stored in an incubator. Then the samples were thermo cycled. The shear bond strength was determined with an lnstron Machine. The results showed a significant difference in mean shear bond strength for Compoglass between etched and unetched dentin [P Value=0.00<0.05]. The mean shear bond strength between Compoglass with unetched dentin and Fuji II LC with pretreatment dentin by polyacrylic acid was not significantly different