The Effect of Various Mouthwashes on the Surface Roughness and Discoloration of Provisional Fixed Materials
Keywords:
3D printing; CAD/CAM; Temporary; Color; Surface properties.Abstract
This study aims to evaluate the effects of mouthwashes on surface roughness and discoloration of provisional materials produced by different methods. Disk-shaped specimens were prepared from conventional [acrylic- and composite-based (PEMA and BCR)] and digital methods (CAD/CAM milling and 3DP). Specimens were divided into 4 subgroups (Kloroben, Meridol, Aloe vera, and artificial saliva as control). Color and surface roughness (Ra) values were measured by spectrophotometer and profilometer at baseline and after mouthwash application. Color changes (∆E00 and ∆Eab) were calculated using L, a, and b values. In artificial saliva, the 3DP group's ∆E00 values were higher than CAD/CAM milling. ∆E00 and ∆Eab of the BCR group were higher than others after Meridol immersion. In Aloe vera, ∆E00 and ∆Eab values of the BCR group were higher than CAD/CAM milling. Ra values of BCR increased after all solutions, and 3DP increased after Aloe vera immersion. CAD/CAM milling and PEMA subgroups, artificial saliva, and Kloroben subgroups of BCR material exhibited clinically acceptable values (∆E00≤2.25). CAD/CAM milling specimens (except Kloroben) and PEMA artificial saliva group (∆Eab) also showed clinically acceptable values. Ra values of CAD/CAM milled (artificial saliva and Kloroben subgroups) and all 3DP subgroups were below the threshold (0.2 µm) for plaque accumulation.
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