COMPARISON OF MICROLEAKAGE BETWEEN SILORANE BASED AND SUPRA NANOFILL COMPOSITE IN CLASS II CAVITIES

Abstract

Aim: The aim of this study was to compare the microleakage in Class II box preparations with the gingival margin above and below the cemento-enamel junction (CEJ) restored with Silorane composite and Supra Nano Fill composite. Materials and Methods: Standardized box preparations (mesial box 1 mm above the CEJ and distal box 1 mm below the CEJ) were prepared in 60 mandibular premolars. The teeth were randomly divided into two groups containing 30 samples each; Group I: Restored with a Silorane composite (Filtek P90, 3M) using a horizontal layering technique, Group II: Restored with Supra Nano Fill composite (Estellite sigma quick, Tokuyama) using a horizontal layering technique. After finishing and polishing, samples were stored in distilled water for 24 hours, followed by thermocycling 500 cycles between 50C and 550C with a 30 seconds dwell time and immersion in 2% methylene blue for 24 hours. The samples were sectioned and evaluated for microleakage at the gingival margin under a stereomicroscope. Results: Silorane composite showed less microleakage as compared to Supra nano fill composite. Also, margins with dentin cement interface had more microleakage in comparison with enamel dentin margins. Conclusion: Silorane composite show good results and can be better alternatives for restoring deep class II cavities.