EFFECT OF FINISHING AND POLISHING ON SURFACE ROUGHNESS OF CUBIC ZIRCONIA | ||
| Egyptian Dental Journal | ||
| Article 51, Volume 64, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), April 2018, Pages 1865-1871 PDF (1.33 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/edj.2018.78446 | ||
| Author | ||
| Ahmad Khaled Abo El Fadl | ||
| Lecturer of fixed prosthodontics, Faculty of Dentistry, Ain Shams University. Guest researcher, Oral technology Department, Bonn, Germany | ||
| Abstract | ||
| Aim: The purpose of this invitro study was to evaluate the effect of finishing and polishing on surface roughness of BruxZir Anterior Cubic zirconia before and after hydrothermal aging. Materials and methods: Twenty samples of BruxZir Anterior Cubic zirconia were divided into two groups, group (1): Polished BruxZir Anterior Cubic zirconia (n=10), group (2): Unpolished BruxZir Anterior Cubic zirconia (n=10). All samples were fabricated out of CAD CAM blocks and evaluated for surface roughness before and after hydrothermal aging. Results: Before aging, there was a significant difference in the surface roughness (Ra) of the polished (M=125.28, SD=1.27) and unpolished (M=128.97, SD=2.61) surfaces. Similarly after aging, there was a significant difference in the surface roughness (Ra) of the polished (M=125.89, SD=1.35) and unpolished (M=130.09, SD=2.97) surfaces. Conclusions: Finishing and polishing of cubic zirconia considerably lowered the surface roughness before and after hydrothermal aging. | ||
| Keywords | ||
| Surface roughness; Cubic Zirconia | ||
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