Temperatur Permukaan Dasar Resin Komposit Bulk Fill Dengan Ketebalan Yang Berbeda

Abstract

Bulk fill composite resin is a restorative material used in dentistry and can be cured with a thickness of up to 4-5 mm. The polymerization of composite resin is influenced by one of the factors, namely the thickness of the composite resin material. In addition, the thickness of the material is also one of the factors that affects the increase in temperature; maintaining temperature is very important because significant increases can lead to irreversible pulp inflammation and even necrosis. The temperature that can permanently damage the pulp starts at 42-42.5 oC. The aim of this study is to determine the difference in the surface temperature of bulk fill composite resin with different thicknesses. The samples used are bulk fill composite resin shade VI B, made in the form of tablets with a diameter of 5 mm and thicknesses of 3 mm, 4 mm, and 5 mm. A total of 30 samples were made, divided into 3 groups: group I (thickness 3 mm), group II (thickness 4 mm), Group III (thickness 5 mm). Each group of samples was irradiated using an LED light curing unit for 20 seconds while measuring the base surface temperature. The average and standard deviation of the base surface temperature of the bulk-fill composite resin obtained were 37.56 ± 1.06 oC for group I, 36.89 ± 1.23 oC for group II, and 36.00 ± 1.20 oC for group III. Data analysis using One Way ANOVA showed that there were differences in the base surface temperature of bulk-fill composite resin with different thicknesses. Further analysis with Post Hoc LSD test indicated a significant difference in base surface temperature of the bulk-fill composite resin between group I and III, but there was no significant difference between group I and II, and between group II and III. It can be concluded that there is a significant difference in the base surface temperature of the bulk-fill composite resin between the thickness group of 3 mm and the thickness group of 5 mm, while there is no significant difference. between the thickness group of 3 mm and the thickness of 4 mm, and the thickness of 4 mm with the thickness group of 5 mm. The thicker the bulk fill composite resin material, the lower the result of the base surface temperature.