PD003 Microleakage Study of a Restorative Resin Trough Radioisotopic Methods (original) (raw)

Aim: The purpose of this study was to evaluate the microleakage of the dental restorations using SonicFillTM (Kerr). The null hypothesis was that the type restorative system didn’t have influence in what concerns to microleakage. Method and materials: Sixty non carious extracted human molars were selected for this study. The teeth were cut in two equal halves occlusogingivally. Class 5 cavities were prepared on the buccal or lingual surfaces of each tooth with gingival marginwalls in enamel with cavity dimensions approximately 4 mm mesiodistally, 3 mm occlusogingivally and 3 mm depth. The specimens were divided randomly in four groups. Group 1 and 4 was restored with SonicFillTM (Kerr), while group 2 was restored with FiltekTM Supreme (3M ESPE). The control cavities in group 3 weren’t restored. The specimens were stored in distilled water at 37°C for 7 days and after thermocycling 500 cycles between 5°C and 55°C with a dwell time of 30 s. Two coats of nail polish were applied to the...