Journal
MATERIALS
Volume 16, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/ma16082974
Keywords
CAD; CAM; ceramics; dental scaling; ultrasonics; surface roughness
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This study evaluated the effect of ultrasonic and manual scaling using different scaler materials on the surface topography of CAD/CAM ceramic compositions. Different ceramic materials and scaling methods were found to have a significant impact on surface roughness. CD exhibited the highest surface roughness values, while CT showed the lowest values. Ultrasonic scaling resulted in the highest roughness values, while plastic scaling had the least surface roughness.
This study evaluated the effect of ultrasonic and manual scaling using different scaler materials on the surface topography of computer-aided designing and computer-aided manufacturing (CAD/CAM) ceramic compositions. After scaling with manual and ultrasonic scalers, the surface properties of four classes of CAD/CAM ceramic discs: lithium disilicate (IPE), leucite-reinforced (IPS), advanced lithium disilicate (CT), and zirconia-reinforced lithium silicate (CD) of 1.5 mm thickness were evaluated. Surface roughness was measured before and after treatment, and scanning electron microscopy was used to evaluate the surface topography following the performed scaling procedures. Two-way ANOVA was conducted to assess the association of the ceramic material and scaling method with the surface roughness. There was a significant difference in the surface roughness between the ceramic materials subjected to different scaling methods (p < 0.001). Post-hoc analyses revealed significant differences between all groups except for IPE and IPS where no significant differences were detected between them. CD showed the highest surface roughness values, while CT showed the lowest surface roughness values for the control specimens and after exposure to different scaling methods. Moreover, the specimens subjected to ultrasonic scaling displayed the highest roughness values, while the least surface roughness was noted with the plastic scaling method.
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