%0 Journal Article
%T Kekerasan mikro resin komposit packable dan bulkfill dengan kedalaman kavitas berbeda
%A Andina Novitasari
%A Diatri Nari Ratih
%J -
%D 2017
%R https://doi.org/10.22146/majkedgiind.22798 https://doi.org/10.22146/majkedgiind.22798
%X Microhardness of packable and bulkfill composite resin with different cavity depths. Bulkfill composite resin restorations are increasingly popular because the material can be irradiated with a thickness reaching 4 mm, making it easier to apply. The objective of this study was to determine the differences in the microhardness between packable and bulkfill composite resin restorations with a cavity depth of 2 mm and 4 mm. This study was done using 32 Te£¿on molds (5 mm diameter), and grouped randomly into 4 groups in which each consisted of 8 samples. Group 1A, packable composite resin was applied to the mold with a cavity depth of 2 mm. Group 1B, bulkfill composite resin was applied to the mold with a cavity depth of 2 mm. Group 2A, packable composite resin was applied with a depth of 4 mm. Group 2B, bulkfill composite resin was applied with a depth of 4 mm. Each sample was immersed in arti£¿cial saliva with a pH of 6.8 and stored in an incubator at a temperature of 37¡ãC for 24 hours. The hardness of each sample was tested using Vickers indenter microhardness tester. The data obtained were then analyzed by using two-way ANOVA, followed by Tukey¡¯s test. The results showed that bulkfill composite resin with a cavity depth of 2 mm has the highest average of microhardness (31.09 ¡À 2.02 VHN), followed by packable composite resin with a depth of 2 mm (17.52 ¡À 1.25 VHN), bulkfill with a depth of 4 mm (11.97 ¡À 1.23 VHN) and packable with a depth of 4 mm (3.18 ¡À 0.85 VHN). The two-way ANOVA analysis showed that there are significant differences between the types of composite resin and cavity depths (p < 0.05), and there is interaction between the types of composite resin and cavity depth (p<0.05). In conclusion, the microhardness of packable composite resin is lower than that of bulkfill at a cavity depth of 2 and 4 mm. ABSTRAK Restorasi resin komposit dengan bulkfill semakin populer karena material tersebut dapat disinar dengan ketebalan sampai 4 mm, sehingga mudah diaplikasikan. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan kekerasan mikro restorasi resin komposit packable dan bulkfill dengan kedalaman kavitas 2 mm dan 4 mm. Penelitian ini dilakukan dengan menggunakan 32 cetakan Teflon (diameter 5 mm), dan dikelompokkan secara random menjadi 4 kelompok yang masing-masing terdiri dari 8 sampel. Kelompok 1A, cetakan diaplikasikan resin komposit packable dengan kedalaman kavitas 2 mm. Kelompok 1B, diaplikasikan komposit bulkfill dengan kedalam 2 mm. Kelompok 2A, diaplikasikan komposit packable dengan kedalaman 4 mm. Kelompok 2B, diaplikasikan
%K bulkfill
%K cavity depth
%K microhardness
%K packable
%K composite resin
%U https://jurnal.ugm.ac.id/mkgi/article/view/22798