Acid etching of glass-infiltrated zirconia and its biological response.
- Author:
Van Thi VU
1
;
Gye Jeong OH
;
Kwi Dug YUN
;
Hyun Pil LIM
;
Ji Won KIM
;
Thao Phuong Thi NGUYEN
;
Sang Won PARK
Author Information
- Publication Type:Original Article
- Keywords: Zirconia; Roughness; Glass infiltration; Acid etching; Biological response
- MeSH: Cell Proliferation; Glass; Hardness; Osteoblasts
- From:The Journal of Advanced Prosthodontics 2017;9(2):104-109
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: The purpose of this study was to evaluate the influence of acid etching treatment on surface characteristics and biological response of glass-infiltrated zirconia. MATERIALS AND METHODS: A hundred zirconia specimens were divided into four groups depending on surface treatments: untreated zirconia (group Z); acid-etched zirconia (group ZE); glass-infiltrated zirconia (group ZG); and glass-infiltrated and acid-etched zirconia (group ZGE). Surface roughness, surface topography, surface morphology, and Vickers hardness of specimens were evaluated. For biological response test, MC3T3-E1 cell attachment and proliferation on surface of the specimens were examined. The data were statistically analyzed using one-way ANOVA and Tukey's HSD test at a significance level of 0.05. RESULTS: Group ZGE showed the highest surface roughness (Ra = 1.54 µm) compared with other groups (P < .05). Meanwhile, the hardness of group Z was significantly higher than those of other groups (P < .05). Cell attachment and cell proliferation were significantly higher in group ZGE (P < .05). CONCLUSION: We concluded that effective surface roughness on zirconia could be made by acid etching treatment after glass infiltration. This surface showed significantly enhanced osteoblast cell response.
