Roughness of enamel surfaces after different bonding and debonding procedures

Abstract

The method of enamel conditioning revealed no significant effect on the enamel surface after debonding. Neither polishing via air abrasion nor carbide bur resulted in differences in superficial roughness. However, the carbide bur left a wave-like pattern on the enamel surface.

Analysis of enamel surface roughness after different adhesive removal techniques for orthodontic bracket debonding

“…If it was possible to smooth the excessively roughened surfaces left by the Er:YAG laser with polishing procedures, it may be plausible to utilize the laser in debonding. Even if these claims were proven to be correct, it would result in an excess loss of enamel, which would result in failure to return the tooth to its pretreatment condition contradicting the recommendations of many authors [4,5,7,10,16,17]. As employed in this study, the Er:YAG laser would not be appropriate at the tested settings for use in resin removal procedures in orthodontic debonding.…”

“…Brauchli et al [17] discovered that the use of profilometry as the sole measuring device did not adequately depict the effects of the adhesive removal techniques upon the enamel surfaces, and they recommended comparing the methods using microscopy with qualitative analysis. In order to thoroughly investigate and compare the traditional methods of resin removal to recommend a singular method, SEM secondary images were taken.…”

“…Past research has explored a multitude of different options for adhesive clean-up from enamel [4,6,10,11,15] with the main objective being to restore the tooth surface to or as close as possible to their pretreatment condition [1,4,5,7,8,10,[15][16][17].…”

Condicionamento do esmalte com óxido de alumínio associado ao ácido fosfórico na colagem indireta de braquetes

“…A rugosidade do esmalte pode ser avaliada quantitativamente com ferramentas de medição linear de contato ou scanners ópticos 3D e qualitativamente por meio de análise visual com microscopia eletrônica (Brauchli et al, 2011b). A perfilometria de contato convencional é um instrumento de medição linear que tem sido utilizada com frequência para medir a rugosidade.…”

“…Tem a vantagem de ser um método não destrutivo, visto que a preparação da amostra não é necessária (Yamada et al, 2004). Nos últimos anos, várias pesquisas têm empregado a microscopia a laser confocal para avaliar a rugosidade do esmalte Watari, 2003;Yamada et al, 2004;Ahn et al, 2009;Brauchli et al, 2011b). Por conseguinte, optou-se, no presente estudo, pela avaliação quantitativa da rugosidade por meio de um microscópio a laser confocal (Leica DCM3D).…”