Journal of Korean society of Dental Hygiene 2023 KCI Impact Factor : 0.8
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pISSN : 2287-1705 / eISSN : 2288-2294
- https://journal.kci.go.kr/jksdh
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Effect of translucency on CAD/CAM ceramic according to different core/veneer thickness
- Journal of Korean society of Dental Hygiene
- Abbr : J Korean Soc Dent Hyg
- 2018, 18(6), pp.1037-1045
- DOI : 10.13065/jksdh.20180089
- Publisher : Korean Society of Dental Hygiene
- Research Area : Medicine and Pharmacy > Dentistry
Kang Wol
1,
Kim Ji Hwan
2
1고려대학교 대학원 보건과학과 치의기공전공
2고려대학교 일반대학원 보건과학과 치의기공전공
Accredited
ABSTRACT
Objectives: The purpose of this study was to evaluation the effect of translucency on CAD/CAM ceramic according to different core/veneer thicknesses. Methods: A total of 42 samples from 2 groups of 7 ceramic cores, each with 3 thickness values (0.8, 1.0, 1.2 mm) were manufactured. The veneers were also manufactured in 3 thicknesses (0.3, 0.5, 0.7 mm). The group names were based on the name of the ceramic core (IPS e.Max CAD; LD, and IPS Empress CAD; LR). The associated number was determined by the combined thickness of the core and veneer: 1 = (0.8 + 0.7); 2 = (1.0 + 0.5); 3 = (1.2 + 0.3). The translucency was measured using a spectrophotometer and defined via the contrast ratio (CR) and translucency parameter (TP). Two-way ANOVA was performed to compare the 2 groups (material and thickness). Results: As the core thickness increased, the TP value also increased, and the CR value (for LR group) decreased. The results of 2-way ANOVA demonstrated that the thicknesses of different core/veneer combinations significantly affected the translucency (p<0.05). Conclusions: The different core and veneer thicknesses affected the translucency of CAD/CAM ceramic.
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