不透明和高透光性氧化锆口腔陶瓷水热降解后的物理性能和咖啡红染色性能

IF 3 Q3 MATERIALS SCIENCE, BIOMATERIALS
Ana Lúcia Nascimento Oliveira, C. Elias, Heraldo Elias Salomão Dos Santos, Claudinei dos Santos, R. de Biasi
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引用次数: 3

摘要

目的是评估不透明和高半透明氧化钇稳定的氧化锆在盐水或口腔漱口水中水热降解前后的抗弯强度、相变、粗糙度和咖啡和红酒的着色性。具有中等不透明度的预烧结氧化锆块(ZrO2-3 Y2O3的mol.%)和高透光性氧化锆(5.2 摩尔%的Y2O3)。试样(n = 80/组)切割并在1500°C下烧结2 h.试样在高压釜(134°C–1.8)中进行水热降解 kg/cm2) 在盐水溶液(0.5 g/L)和口服漱口水溶液(0.02%氟化钠、不含酒精和含21.6%酒精)。水热降解后,将样品浸入装有咖啡或红酒的容器中14 天来确定它们的颜色可着色性。结果表明,在水热老化前后,ZrOp比ZrTrans具有更高的弯曲强度。在ZrOp和ZrTrans中,水热降解后粗糙度增加。ZrOp样品具有比ZrTrans样品更高的Ra粗糙度。浸泡在咖啡或红酒中后,粗糙度没有变化。X射线衍射(XRD)结果表明,ZrOp样品经历了四方到单斜的相变,而ZrTrans样品没有变化。ZrOp和ZrTrans样品在浸泡在咖啡和红酒中后都会变色。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Physical Properties and Color Stainability by Coffee and Red Wine of Opaque and High Translucency Zirconia Dental Ceramics after Hydrothermal Degradation
The objective was to evaluate the bending strength, phase transformation, roughness, and color stainability by coffee and red wine of opaque and high translucency yttria-stabilized zirconia before and after hydrothermal degradation in saline solution or oral mouthwash. Presintered zirconia blocks with medium opacity (ZrO2-3 mol. % of Y2O3) designed as ZrOp and high translucency zirconia (5.2 mol. % of Y2O3) designed as ZrTrans were used. Specimens (n = 80/group) were cut and sintered at 1500°C for 2 h. The specimens were hydrothermally degraded in an autoclave (134°C–1.8 kg/cm2) for 20 h in saline solution (0.5 g/L) and oral mouthwash solution (0.02% sodium fluoride, without alcohol and with 21.6% alcohol). After hydrothermal degradation, the samples were immersed in containers with coffee or red wine for 14 days to determine their color stainability. The results showed that the ZrOp had a higher bending strength than the ZrTrans before and after hydrothermal aging. In ZrOp and ZrTrans, the roughness increased after hydrothermal degradation. ZrOp samples had a higher Ra roughness than the ZrTrans samples. Roughness did not change after immersion in coffee or red wine. The X-ray diffraction (XRD) results showed that ZrOp samples underwent a tetragonal to monoclinic phase transformation, while ZrTrans samples were unchanged. Both ZrOp and ZrTrans samples changed color after immersion in coffee and red wine.
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来源期刊
International Journal of Biomaterials
International Journal of Biomaterials MATERIALS SCIENCE, BIOMATERIALS-
CiteScore
4.30
自引率
3.20%
发文量
50
审稿时长
21 weeks
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