| Autor: |
Ratchaphat Khomprang, Jeerapa Sripetchdanond, Wareeratn Chengprapakorn |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Clinical and Experimental Dental Research, Vol 10, Iss 4, Pp n/a-n/a (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2057-4347 |
| DOI: |
10.1002/cre2.918 |
| Popis: |
ABSTRACT Aims and Objectives To evaluate the effect of coffee thermocycling on color stability and translucency of CAD‐CAM polychromatic high translucent zirconia compared with lithium disilicate glass ceramic. Methods Sixteen rectangular plates (14 × 16 × 1.0 mm) of two ceramic materials (IPS E.max CAD (IEC), IPS E.max ZirCAD Prime [IZP]) were prepared. Each specimen was measured for color coordinates using a spectrophotometer following 30,000 cycles of coffee thermocycling. CIELAB formula was used to determine color and translucency differences (ΔE and ΔTP). The means of ΔE and ΔTP were compared using independent samples t‐test and were evaluated using their respective 50%:50% perceptibility and acceptability thresholds (PT and AT). One‐way analysis of variance was performed to evaluate the translucency parameter (TP) and surface roughness (Ra) of each material. Results Mean ΔE values of IEC (4.69) and IZP (4.64) were higher than the AT (ΔE ≤ 2.7) with no significant difference found between the two groups (p = 0.202). Considering the TP, only IEC showed a statistically significant increase in TP value (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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