Microleakage of different resin composite types

Yazici, A. Rüya; Çelik, Çiǧdem; Ozgünaltay, Gül
November 2004
Quintessence International;Nov/Dec2004, Vol. 35 Issue 10, p790
Academic Journal
Objective: The purpose of this study was to evaluate the microleakage of Class V cavity preparations restored with three different types of resin composite and an ormocer. Method and materials: Forty Class V cavities were prepared in buccal and lingual surfaces of 20 recently extracted molar teeth The occlusal margin of each restoration was on enamel and the gingival margin on dentin. Teeth were randomly assigned to four groups of 5 teeth each and restored as follows. Group I, flowable resin composite (Telric Flow); Group II, hybrid resin composite (Z100); Group III, packable resin composite (Solitaire 2); Group IV, organically modified ceramics-ormocer (Admira). In all groups, the manufacturers' instructions were strictly followed. All restorative resin composite materials were placed in one increment. All teeth were then immersed in 0 5% basic fuchsin solution for 24 hours after thermocycling (200 cycles; between 4"C to 60°C). The teeth then were longitudinally sectioned and observed under a stereomicroscope. The degree of dye penetration was recorded and analyzed with the Kruskal-Wallis and Mann-Whitney tests. Results: No statistically significant differences in microleakage were observed between groups either on enamel or dentin. Conclusion: All restorative materials demonstrated equal effectiveness In reducing microleakage. (Quintessence M 2004;35-790-794)


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