Simona Stoleriu, Gianina Iovan, Galina Pancu, Irina Nica, Nicoleta Tofan, Alexandru Iovan, Sorin Andrian
The aim of the study was to evaluate if there are significantly differences in immediate marginal adaptation of a self-adhesive flowable composite resin used in association with a universal bonding agent and to compare the sealing ability to a conventional flowable composite resin. Class V cavities were prepared on the buccal and lingual surfaces of eighteen molars and bicusps. The cavities were restore using a self-adhesive flowable composite resin (Vertise™ Flow, Kerr Dental), a conventional flowable composite resin (Neo Spectra™ ST Flow, Dentsply Sirona), and a universal adhesive system (Prime and Bond Active, Dentsply Sirona) applied in etch and rinse or self etch strategy. The teeeth were submersed in distilled water for 24 hours, then in 2% methilen blue solution for 24 hours. Buccal-lingual sections were obtained by cutting the teeth and were evaluated using an optic microscope. The microleakage at gingival and occlusal margins was assessed by dye penetration according to a 4 grade scale. There was no significantly different microleakage when using Vertise™ Flow in association with the universal bonding agent or without it. The use of Vertise™ Flow self-adhesive composite resin determined similar enamel and dentin microleakage, irrespective the use of a bonding system or the strategy of bonding application. Conventional flowable resin Neo Spectra™ ST used in association with the bonding agent lead to a significantly higher microleakage when comparing to self-adhesive composite resin Vertise™ Flow used in the same conditions.The association of a bonding agent applied in etch and rinse or self etch strategy and the conventional flowable resin Neo Spectra™ ST significantly decreases enamel and dentin microleakage.