间接恢复性CAD/CAM材料釉面应用对磨料刷牙磨损的阻力。

Rodrigo de Castro Albuquerque, Beatriz Ometto Sahadi, Carolina Bosso André, Paulo Matias Moreira, Frederick Allen Rueggeberg, Marcelo Giannini
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引用次数: 0

摘要

目的:研究刷牙对三种釉面陶瓷表面粗糙度(Sa)、粗糙度轮廓(Rv)、光泽单位(GU)和表面形貌的影响。材料和方法:来自不同CAD/CAM材料的样品(n=7) 1-二硅酸锂基玻璃陶瓷(IPS e.max CAD);对2-氧化锆增强硅酸锂玻璃陶瓷(Celtra Duo)和3- 6mol %氧化钇部分稳定氧化锆(InCoris)进行了评价。将IPS e.max CAD和InCoris样品进行烧结,并根据制造商的建议对所有组进行预抛光和上釉:IPS Ivocolor Glaze Paste (Ivoclar Vivadent)或Universal Overglaze High Flu (Dentsply/Sirona)。分别在3万、12万、18万次刷牙前后分析Sa、Rv、GU及形态学。Sa和GU的数据采用双因素方差分析和事后Tukey检验(α=0.05)。Rv由Kruskal-Wallis和Student-Newman-Keuls分析。对其表面形貌进行定性分析。结果:所有测试材料在18万次刷牙循环后Sa均显著下降。CE的Rv值高于EM和IN,而IN在18万次刷牙循环后GU值最高,促进了所有材料的抛光效果。结论:与未刷牙相比,长期刷牙不会损害所有被试材料的釉面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Resistance of Glaze Application on Indirect Restorative CAD/CAM Materials Against Abrasive Toothbrushing Wear.

Purpose: To evaluate the effect of toothbrushing on the surface roughness (Sa), roughness profile (Rv), gloss units (GU), and surface morphology of three glazed ceramics.

Materials and methods: Specimens (n = 7) were made from the following different CAD/CAM materials and evaluated: lithium disilicate-based glass ceramic (EM); zirconia-reinforced lithium silicate glass ceramic (CE); and 6 mol% yttria partially-stabilized zirconia (IN). IPS e.max CAD (EM) and InCoris (IN) specimens were sintered, and all groups were prepolished and glazed according to the manufacturer's recommendations using IPS Ivocolor Glaze Paste (Ivoclar Vivadent) or Universal Overglaze High Flu (Dentsply/Sirona). Sa, Rv, GU, and morphology were analyzed before and after brushing at 30,000, 120,000, and 180,000 cycles. The data of Sa and GU were analyzed with ANOVA two-way and post hoc Tukey tests (α = .05). Rv was analyzed with Kruskal-Wallis and Student-Newman- Keuls tests. Surface morphology was analyzed qualitatively.

Results: Sa decreased significantly after 180,000 toothbrushing cycles for all materials tested. CE showed higher Rv than EM and IN, and IN showed the highest GU after 180,000 toothbrushing cycles, which promoted a polishing effect for all materials.

Conclusions: Long-term toothbrushing did not jeopardize the glazed surface of all tested materials compared to lack of brushing.

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