MICROLEAKAGE IN CLASS II PREPARATION USING THREE SELF-ETCHING AND TWO SINGLE BOTTLE ADHESIVE SYSTEMS
DOI:
https://doi.org/10.15332/us.v3i1.1833Keywords:
Microleakage, Self - etching, Class II preparationsAbstract
Objective: This study compared microleakage in class II (Black) preparation using three self-etching and two single bottle adhesive systems.
Materials and methods: One hundred and twenty human extracted premolars due to orthodontic treatment were prepared with a class II (oclusal – medial) preparation. One hundred were restored divided in five groups: 20 with S.E Clearfil (Kuraray), 20 with One Up (Tokuyama), 20 with Adapter Prompt (3M-ESPE), 20 with Excite (Vivadent) and 20 with Single Bond (3M-ESPE). The last twenty were used to determinate the area of the cavity. Ten of each group were term cycled during 1000 cycles, with a low temperature of 6ºC±2 and high of 60º ± 2.The cavities were restored and cutted with ISOMET of each one eight parts were obtainer and were analyzed at stereomicroscope. The sumatory of microleakage of the parts determined the total microleakage. ANOVA and Bartlett´s test were used.
Results: All the samples showed microleakage. Showing the highest the one restored with Adapter Prompt (3M-ESPE), for all the termocycled and not termocycled, and the lowest the ones restored with Single Bond (3M-ESPE). The surface showing the highest microleakage was gingival.
Conclusions: All the self-etching adhesives showed microleakage. All the self-etching adhesives allowed highest microleakage that the ones with single bottle.
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