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KMID : 0362420150530020138
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Journal of Korean Academy of Prosthodontics
2015 Volume.53 No. 2 p.138 ~ p.143
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Translucency of ceramic veneers on glazing effect
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Kim Sung-Joon
Kahm Se-Hoon
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Abstract
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PURPOSE: The aim of this study was to compare the translucency of two different laminate ceramic veneers with and without glazing.
MATERIALS AND METHODS: Ten millimeter side square-shaped specimens in 0.3 mm and 0.6 mm thick were fabricated for the following materials with and without glazing (n=80): A1 shade IPS e.maxPress (IEM) and Styleveneers (STV). The color coordinates (CIE L* a* b*) of the specimens were measured with a colorimeter. The Translucency parameter (TP) was calculated from the color difference of the material on a black versus a white background. For comparisons between materials and between the‘ not glazed’and‘ glazed’groups, unpaired t-test was used to analyze the data (P=.05).
RESULTS: The TP (Mean ± SD) of‘ not-glazed’and‘ glazed’group of IEM specimens at 0.3 mm thickness were 45.99 ± 3.00 and 49.53 ± 2.28 and the TP at 0.6 mm thickness were 32.82 ± 2.59 and 43.02±0.98, respectively. Likewise, the TP of‘ not-glazed’and‘ glazed’group of STV specimens at 0.3 mm thickness were 47.03 ± 3.65 and 50.95 ± 3.05 and the TP at 0.6 mm thickness group were 34.48 ± 1.28 and 43.39 ± 1.20, respectively. As the glazing of ceramic veneer differed, the TP of each ceramic veneer showed statistically significant difference. But, the result between the products was not statistically different.
CONCLUSION: Within the limitations of this study, we are concluded that the glazing process changed translucency of laminate ceramic veneers and the TP would not be affected by products.
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KEYWORD
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Translucency, Veneer, Ceramics, Laminate, Glaze, Lithium Disilicate
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