• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Research in Dental Sciences >The Effect of Preparation Design on the Marginal Integrity of Monolithic Zirconia Crown
【24h】

The Effect of Preparation Design on the Marginal Integrity of Monolithic Zirconia Crown

机译：制备设计对整体氧化锆冠的边际完整性的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Background Aim: Marginal adaptation of full ceramic zirconia restorations are one of the important factors in their long-term success and one of the factors affecting marginal adaptation and their strength is the finish line design.This study was conducted to compare the effect of finishline design on the adaptation of monolithic zirconia crowns. Material and methods: In this in-vitro study, 3 standard PEEK dies with 7 mm height and 5 mm diameter (in cervical) with convergence angle of 10in the walls was prepared by Ceramill motion 2 (Amann Girrbach, Austria) in three groups with chamfer,sloped shoulder and shoulder design. After pouring the molds made from PEEK dies with epoxy resin,30 dies(10 samples per group) were made.The construction of zirconia crowns (zolidpreshades,Amann Girrbach, Austria) was performed using the Ceramill map extraoral scanner (Amann Girrbach, Austria) and the CAD / CAM method Ceramill motion 2 (Amann Girrbach, Austria). After cementing the crowns with Panavia F2,they were cut in the Buccolingual direction and the gap was measured at 7 points by the SEM (TESCAN S8000, China) at 500x magnification. In this study, one-way Anova statistical methods were used to show the effect of preparation design on marginal matching and Tukey HSD test to compare groups with each other. Results: Marginal gap values of the samples evaluated by the mean of AMO and MO,for Chamfer, Sloped shoulder and shoulder groups were (60.3711.78/57.2912.63),(73.3714.79/68.0814.21) and (95.429.60/92.5910.83) microns and the internal gap values measured by Axial and Occlussal averages were (49.60 10.37/120.37 33.61),(469.37/124.4132.10) and (69.439.73/163.4927.79) microns respectively. There was a significant difference between Chamfer and sloped shoulder groups with shoulder group (P 0.05). Conclusions: From the results,it may be concluded that chamfer and sloped shoulder showed better marginal adaptation than that of shoulder,although the chamfer group had the better adaptation among all groups.
机译：背景目的：边缘适应全陶瓷氧化锆修复体是其长期成功的重要因素之一，其影响边缘适应的因素之一是终点线设计。进行了研究以比较FINFILE设计的效果整体氧化锆冠的改编。材料和方法：在这种体外研究中，通过Ceramill Motion 2（Amann Girrbach，Austria）在三组中，3个标准PEEK用7毫米高度和5毫米直径（宫颈）的直径（宫颈），用倒角，斜肩和肩部设计。浇注由环氧树脂的PEEK模具制成的模具后，制造了30个模具（每组10个样品）。使用Ceramill Map Threoral Scanner（Amann Girrbach，Austria）进行氧化锆冠（ZolidPreshades，Amann Girrbach，奥地利）的建设和CAD / CAM方法Ceramill Motion 2（Amann Girrbach，奥地利）。在用Panavia F2巩固冠状后，将它们切割在脉络线方向上，并在500倍放大率下由SEM（Tescan S8000）以7分测量间隙。在本研究中，使用单向ANOVA统计方法来展示制备设计对边缘匹配和Tukey HSD测试的影响，以比较彼此的群体。结果：通过AMO和MO的平均值评估的样品的边缘间隙值，用于倒角，倾斜肩部和肩部组（60.3711.78 / 57.2912.63），（73.3714.79 / 68.0814.21）和（95.429.60 /92.5910.83）微米和轴向和乱伦平均值测量的内部间隙值（49.60.37 / 120.37 33.61），分别为（469.37 / 124.4132.10）和（69.439.73 / 163.4927.79）微米。倒角和倾斜肩部肩部伴肩部组之间存在显着差异（P 0.05）。结论：从结果中，可以得出结论，倒角和倾斜的肩部显示比肩部更好的边缘适应，尽管倒角组在所有群体中具有更好的适应。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号