Acta Scientific Dental Sciences (ASDS)(ISSN: 2581-4893)

Review Article Volume 6 Issue 3

Assessment of Surface Roughness and Color Stability of Glazed Versus Polished Pressed Zirconia Reinforced Lithium Silicate Restorations Under Different pH Oral Media (An In-Vitro Study)

Samar Fathy Fathy El Shihy1*, Reham Said El Basty2 and Gihan Abd Elhady El Naggar3

1Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt and A. Lecturer, Fixed Prosthodontics Division, School of Dentistry, Newgiza University, Giza, Egypt
2A. Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt and Head of Fixed Prosthodontics Division, School of Dentistry, Newgiza University, Giza, Egypt
3Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt

*Corresponding Author: Samar Fathy Fathy El Shihy, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Received: March 11, 2022; Published: March 18, 2022

Abstract

Aims: Assess the effect of the surface finish protocol of pressed zirconia reinforced lithium silicate ceramics on the surface roughness and color stability under different pH oral media.

Methodology: A total of 30 samples were used in the present study. The samples were divided into two main groups according to the surface finishing protocol (n = 15); glazed and polished group. Then, subdivided into three subgroups according to the media tested: coffee, carbonated orange juice and artificial saliva as the control group. The surface roughness was measured using optical profilometer quantitatively and with scanning electron microscope qualitatively. Also, Color parameter was measured using spectrophotometer. Afterwards, the discs were immersed in the aging solutions for 12 days simulating 1 year in-vivo. Then, the surface roughness and color change were remeasured after aging.

Result: For surface roughness results, regardless of surface finish protocol the difference between immersion solutions was statistically non-significant where (Coffee ≥ Fanta ≥ AS). Also, irrespective of immersion solutions the difference between surface finish protocol was statistically non-significant where (Glazed ≥ Polished). Regarding the color stability results, regardless of surface finish protocol the difference between immersion solutions was statistically non-significant where (Coffee > Fanta > A.S), furthermore, irrespective of immersion solutions the difference between surface finish was statistically significant where (Glazed > Polished).

Conclusion: Surface finish protocol (glazed and polished), as well as immersion media, showed no effect on the surface roughness of zirconia reinforced lithium silicate restorations. Also, Color stability was significantly affected by the surface finish protocol, while the pH immersion media showed no effect on the color stability.

Keywords: Zirconia Reinforced Lithium Silicate; Celtra Press; Surface Finish; Surface Roughness; Color Stability; Optical ProfilomAbbreviation

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Citation

Citation: Samar Fathy Fathy El Shihy., et al. “Assessment of Surface Roughness and Color Stability of Glazed Versus Polished Pressed Zirconia Reinforced Lithium Silicate Restorations Under Different pH Oral Media (An In-Vitro Study)".Acta Scientific Dental Sciences 6.3 (2022): 54-64.

Copyright

Copyright: © 2022 Samar Fathy Fathy El Shihy., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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