Effectiveness of Porcelain Polishing Methods on the Roughness and Color Stability of CAD–CAM Ceramics after Orthodontic Bracket Debonding

Increased utilization of all ceramic restorations for aesthetic consideration in combination with routine adult orthodontic practice has led to numerous clinical challenges. Obtaining adequate bond strength between the bracket and all-ceramic restoration damage surface during debonding procedure needs be better understood. This study analyzed texture color change glazed bracket-debonded CAD–CAM materials efficiency porcelain polishing systems restoring morphology color. A total 30 rectangular test specimens from each lithium disilicate CAD (LD-CAD), polymer-infiltrated (PICN), zirconia-reinforced silicate glass (ZLS), 5YTZP zirconia (5YZP) were prepared. The samples embedded within acrylic resin, baseline roughness recorded using an optical profilometer a reflected spectrophotometer. bonded lower incisor brackets. thermocycled 2000 times 5 55 °C. Afterward, brackets peeled bracket-removing pliers. resin adhesive debonded was eliminated tungsten carbide bur, randomly divided into three subgroups (n = 10) polished Diapol-twist (DT), Keramik-Politur 4313B Komet kit (KK), Horico diamond polisher (HDP). recorded. data statistically two-way analysis variance at p < 0.05. surfaces across groups displayed significantly higher mean (Ra) compared surfaces. 5YZP showed least Ra 0.661 (0.09), while highest by PICN 4.057 (0.82). All evaluated reduced roughness. However, they unsuccessful regaining topography surface. flexible discs (DT) produced smoothest surface, followed diamond-impregnated rubber points (KK). Unpolished had discernable difference Polished different among achieved clinically acceptable difference. Polishing rough is imperative, performed tested materials.