The aim of this study was to evaluate enamel roughness, quality of the enamel surfaces\nand time duration comparing different orthodontic adhesive removal protocols. Premolars were\nused to test three adhesive removal methods (n = 20): five-blade carbide bur, 30-blade carbide bur,\nand ultrasonic diamond bur. Bracket was bonded using TransbondTM XT adhesive. Roughness with\ndifferent parameters was measured before bracket bonding and after adhesive remnants removal.\nMicromorphological analysis of enamel surface (n = 5) was performed by SEM images and categorized\nin enamel damage indexâ??â??perfectâ?; â??satisfyingâ?; â??imperfectâ?; and â??unacceptableâ?. Time was\nmeasured in seconds. All removal methods caused increased roughness in relation to Ra, Rq, and Rz\nparameters (X axis) comparing to healthy enamel surface. Enamel surface resulted from removal\nusing five-blade burs was scored as satisfactory. Carbide bur groups decreased the roughness\nvalues of Ra, Rq, and Rz parameters on the Y axis and enamel surface was considered unacceptable.\nThe 30-blade group increased symmetry (Rsk) and flattening (Rku) parameters of roughness and\nsurface was scored as unsatisfactory. Diamond bur removed adhesive in 54.8 s, faster than five-blade\ncarbide bur. The five-blade bur group resulted in less enamel roughness than the 30-blade and\ndiamond groups.
Loading....