Surface Roughness Assessment of the Sandblasted and Acid- Etched Zirconia Ceramic

ALobaide, Mohammed Riyadh; Nayif, Maan M

doi:10.33899/rden.2021.128358.1052

	Surface Roughness Assessment of the Sandblasted and Acid- Etched Zirconia Ceramic
Al-Rafidain Dental Journal
Article 14, Volume 21, Issue 1, 2021, Pages 146-157 PDF (548.88 K)
Document Type: Research Paper
DOI: 10.33899/rden.2021.128358.1052
Authors
Mohammed Riyadh ALobaide^* ¹; Maan M Nayif²
¹Department of conservative dentistry, college of dentistry, Mosul university, Mosul, Iraq
²Department of Conservative Dentistry, College of Dentistry, Mosul University, Mosul, Iraq.
Abstract
Aims: To evaluate the effect of sandblasting with Al₂O₃particle and 30% citric acid etching on the roughness of zirconia ceramic. Materials and Methods: Thirty disks were prepared from partial sintered zirconia (IPS e.max ZirCAD MT blank disk, Ivoclar Vivadent; Schaan, Liechtenstein). Specimens were assigned randomly into three groups based on surface treatment techniques (n=10). Group I zirconia surface was left without surface treatment (control). Group II specimens were subjected to sandblasting with 110 µm Aluminum oxide particles (Al₂O₃) while the group III surface was treated with citric acid solution 30% for 10 minutes. The surface roughness of the zirconia was investigated using a profilometer. Data were analyzed with one-way ANOVA and Duncan’s tests at 5% level of significance. Results: Sandblasting with AL₂O₃ 110µm significantly increased the surface roughness value of the zirconia surface. Chemical treatment with 30% citric acid did not exhibit any significant changes in comparison to the control group. Conclusions: Sandblasting with AL₂O₃ increased zirconia surface roughness but acid etching has no effect.
Keywords
Acid etching,,; ,،,؛Roughness,,; ,،,؛Sandblasting,,; ,،,؛Zirconia ceramic

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