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- Title
Translucency parameters of different CAD/CAM ceramics for monolithic restorations.
- Authors
Carneiro, C. M. A.; Paulart, M. M.; Correr, G. M.; Cunha, L. F. da; Diógenes, A. N.; Gonzaga, C. C.
- Abstract
The translucency of dental ceramics [feldspathic ceramic (FC), lithium disilicate glass-ceramic (LD), zirconia-reinforced lithium silicate glass-ceramic (LS), and translucent zirconia (TZ)], in two thicknesses (1 and 2 mm), using different parameters was assessed. Translucency parameters (, TP00), contrast ratio (CR), light transmittance at 468 nm (T%), and light attenuation were determined. Data were analyzed by ANOVA, Tukey's test, and Pearson correlations (α=0.05). CR ranged from 0.64 (LS-1 mm) to 0.96 (TZ-2 mm). ranged from 3.7 (TZ-2 mm) to 32.2 (LS-1 mm). TP00 ranged from 3.0 (TZ-2 mm) to 26.4 (LS-1 mm). T% ranged from 14.9 (TZ-2 mm) to 75.2 (FC-1 mm). Light attenuation varied from 54% (LS-1 mm) to 84% (TZ-2 mm). There were significant strong negative correlations between CR and (R=-0.997), CR and TP00 (R=-0.991), and light attenuation (R=-0.888), and TP00 and light attenuation (R=-0.867). LS showed the highest translucency, whereas TZ showed the lowest translucency. When thickness increased, CR and light attenuation also increased, while TP and transmittance decreased.
- Subjects
LITHIUM silicates; ATTENUATION of light; DENTAL ceramics; DENTAL translucency; CERAMIC materials; PEARSON correlation (Statistics); CERAMICS
- Publication
Ceramica, 2023, Vol 69, Issue 391, p248
- ISSN
0366-6913
- Publication type
Article
- DOI
10.1590/0366-69132023693913476