A Comparison Of The Different Self-Adhesive Composites’ Microleakage With Using Er-Yag Laser

Objectives: The aim of this study was to evaluate of different self-adhesive composites’ microleakage when used diffirent adhesive systems with using Er-YAG Laser on Class V cavities.
Methods: 110 non-decayed molar theeth were randomly divided into two groups with using two different prepairing methods (bur, Er-YAG laser etching). ClassV cavities were prepared for microleakage evaluation. The teeth were randomly divided into two groups, laser etching application was further applied only one group. Cavities were restored as above and then 1000 times thermalcycles was applied on theeth.Theeth were stored in 0.5%basic fuchsin solution and cut for evaluate with stereomicroscope.Friedman, Kruskal-Wallis,One vayAnova and Mann-Whitney U and Wilcoxon rank tests were applied (p= 0.05) to have statisticsof the obtained data.
Results: Generally, in microleakage evaluation between composites, statistically differences were occured (p <0.05) on the other hand there was no difference between the methods of cavity preparation (p>0,05). According to the results of microleakage, laser etching applications had no effect on microleakage and the self-adhesive composites when used alone, can not prevent microleakage. All of the self-adhesive composites showed similar microleakage values (p>0,05), traditional flowable composite showed lower microleakage values than self adhesive composites (p>0,05).
Conclusions: Self-adhesive composites, showed more microleakage than the control groups and groups which self-adhesive composites applied with adhesive systems. According to the results of this study, self-adhesive composites’ application solitary is not recommended.