AvaliaÃÃo da micromorfologia da interface adesiva composta por diferentes tipos de sistemas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This study aimed to find the relation between different compositions of self-etch and total-etch adhesive systems and the quality of the achieved adhesive interface. Fifty dental discs were obtained from extracted human third molars and were divided into 10 groups. The total-etching technique was used in 6 groups, followed by the adhesives One Coat Bond SL (ColtÃne Whaledent), AdperTM Single Bond 2 (3M/ESPE), Master Bond (BiodinÃmica), XP Bond (Dentsply), Stae (SDI) and Prime &Bond NT (Dentsply). On the other groups, 4 self-etch adhesives were used: AdperTM PromptTM (3M/ESPE), AdheSE (Ivoclar Vivadent), Go! (SDI) and Clearfil SE Bond (Kuraray Medical). Each adhesive system received two increments of resin composite and, after 24h in distilled water, the discs were sectioned to analysis on SEM. The self-etch adhesives, especially the filled systems, presented lower values of tagsâ length when compared to total-etch adhesives; formed thicker hybrid layers with those that have stronger acidity or acetone in its composition; and the water-solvent self-etch adhesive with higher pH presented lower values of tags number and length. For total-etch adhesives, there was no influence of the addition of resin particles or the solvent type on the quality of adhesive interface, except when the tertiary butanol was used, which provided the lower formation of tags number and length

ASSUNTO(S)

dental acid etching adesivos dentinÃrios scanning electron microscope microscopia eletrÃnica de varredura dentin-bonding agents dentina odontologia ataque Ãcido dentÃrio dentin

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