Influence of 10% carbamide peroxide gel on the shear bond strength of orthodontic brackets

Edgard Norões R. da MATTA, José de Albuquerque Calasans MAIA, Orlando CHEVITARESE

The purpose of this in vitro study was to determine the influence of 10% carbamide peroxide gel on the shear bond strength of orthodontic brackets. Three group were studied: G1 (without bleaching), G2 (bleaching and bonding after 1 week) and G3 (bleaching and bonding after 24h). The shear test was conduced in a Emic testing machine with a crosshead speed of 0,5 mm/min. The shear bond strength was calculated for each tooth and expressed in MPa. The results show enhance statistical significant (p<0,001) on the shear bond strength after bleaching and encreased with the time interval between bleaching and bonding, significantily.

Keywords: Dental bleaching. Carbamide peroxide. Bond strength.

Thursday, April 25, 2024 15:53