Comparative Study of Tension Forces in Direct Bonding Orthodontic Brackets, with two Different Times of Eachting Enamel, with and without Previous Homogeneazation

Célia Regina Maio PINZAN, Arnaldo PINZAN, Paulo Afonso FRANCISCONE, José Roberto Pereira LAURIS, Marcos Roberto de FREITAS

This study objective to test: two times of eatching enamel (15 and 60 Seg.) and with/without previous homogeneazation of the composite resin (Concise, 3M). The samples were tested in tension in a EMIC universal testing machine at 0,5mm/sec. until debonding.

Keywords: Orthodontic direct bonding. Composite Resin.

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