Effects of Three Hemostatic Agents on Microleakage of Cervical Composite Resin Restorations Bonded to Simulated Caries-Affected Tooth Substrate Using One-Step Self-Etch Adhesive

Background and aim: this study aimed to evaluate the microleakage of cervical restorations with the use of a one-step self-etch adhesive after application of three different hemostatic agents. materials and methods: in this in vitro study, 96 cervical cavities were prepared on 24 intact and 24 demineralized teeth. forty-eight class v cavities with sound tooth substrate were assigned to groups 1 to 4, and 48 cavities with demineralized tooth substrate were assigned to groups 5 to 8. in groups 1 and 5, no hemostatic agent, in groups 2 and 6, viscostat, in groups 3 and 7, viscostat clear, and in groups 4 and 8, trichloroacetic acid (tca) were used. after composite resin filling and thermocycling, the teeth were immersed in dye, sliced, and dye penetration was scored under a microscope. data were analyzed with the kruskal-wallis and mann-whitney tests. results: the mean enamel microleakage values were significantly different among the groups (p=0.027); however, there was no significant difference in the mean dentin microleakage values between the study groups (p=0.072). significant differences were also noted in enamel marginal leakage between groups 1 and 3, 1 and 5, 3 and 8, and 5 and 8 (p<0.05). no significant difference was observed in microleakage of groups with normal dentin and groups with simulated caries-affected dentin (p=0.063). conclusion: within the limitations of this study, viscostat clear exhibited the greatest enamel microleakage. there were no significant differences in dentin microleakage between the study groups; however, among the groups with simulated caries-affected dentin, tca showed lower microleakage.