This study was conducted by evaluation of friction force and level of debris on the surface of premolars brackets, regarding a control group, in which the bracket was just debonded from the mouth and a test group, where the brackets were previously blasted with sodium bicarbonate before debonding.
En el grupo control, los brackets fueron solamente removidos de la boca de los pacientes; ya en el grupo de prueba, los brackets fueron previamente lavados con bicarbonato de sodio antes de la retirada.
No grupo controle, os bráquetes foram apenas removidos da boca dos pacientes; já no grupo testado, os braquetes foram previamente jateados com bicarbonato de sódio antes da remoção.