Different Application Strategies When Using Futurabond Universal in Class V Cavities

In Group SET, the adhesive system Futurabond Universal will be used in 50 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite Admira Fusion (VOCO GmbH, Germany), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.

In Group SEE, 37% phosphoric acid will be applied during 30 seconds, only in enamel in 50 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive system Futurabond Universal will be used in 50 teeth, according to the manufacturer's instructions. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite Admira Fusion (VOCO GmbH, Germany), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.

In Group ERDry, 37% phosphoric acid will be applied during 30 seconds, only in enamel, and 15 seconds, only in dentin, in 50 teeth. This acid will be removed using water, the cavity will be air-dried, keeping dentin dry (but not overdry) and then, the adhesive system Futurabond Universal will be used in 50 teeth, according to the manufacturer's instructions. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite Admira Fusion (VOCO GmbH, Germany), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.

In Group ERWet, 37% phosphoric acid will be applied during 30 seconds, only in enamel, and 15 seconds, only in dentin, in 50 teeth. This acid will be removed using water, the cavity will be air-dried, keeping dentin wet and then, the adhesive system Futurabond Universal will be used in 50 teeth, according to the manufacturer's instructions. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite Admira Fusion (VOCO GmbH, Germany), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.