Effect of Hydrothermal Degradation on Translucency of Zirconia Laminate Veneers | ||||
| Al-Azhar Journal of Dentistry | ||||
| Volume 2024, Issue 1, January 2024 | ||||
| DOI: 10.58675/2974-4164.1606 | ||||
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| Authors | ||||
| Esraa S. Mostafa1; Osama S. Abd-Elghany2; Sara Tamimi3 | ||||
| 1Dentist at health insurance, Cairo, Egypt. | ||||
| 2Professor and head of Crowns and Bridges department, Faculty of Dental Medicine For Girls, Al-Azhar University, Cairo, Egypt. | ||||
| 3Lecturer of Crowns and Bridges department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt | ||||
| Abstract | ||||
| Purpose: The present study aimed to assess the effect of hydrothermal degradation on the translucency of zirconia laminate veneers. Materials and methods: Thirty discs of zirconia laminate veneers (thickness: 0.5mm) were obtained from high translucent zirconia, super translucent zirconia, and ultra-translucent zirconia. The samples were divided into 3 groups (n=10) according to the translucency of the material; Group (1) High Translucent Multi Layered katana zirconia (HTML), Group (2) Super Translucent Multi Layered katana zirconia (STML) and Group (3) Ultra Translucent Multi Layered katana zirconia (UTML). The shade of each group was A1. All the groups were subjected to hydrothermal degradation (134 ±2⁰C at 0.2 MPa) for 5 hours. The translucency of the samples was measured using a reflective spectrophotometer. Results: Statistical analysis using the ANOVA test showed no significant effect on the translucency of all the tested groups after hydrothermal degradation. Conclusion Hydrothermal degradation doesn’t affect translucency of zirconia (HTML, STML, and UTML). | ||||
| Keywords | ||||
| Hydrothermal degradation; translucency; Laminate veneers | ||||
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