首页> 美国卫生研究院文献>Materials >Mapping of the Micro-Mechanical Properties of Human Root Dentin by Means of Microindentation
【2h】

Mapping of the Micro-Mechanical Properties of Human Root Dentin by Means of Microindentation

机译:通过微观化通过微观牙本质的微力学性质映射

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The extensive knowledge of root dentin’s mechanical properties is necessary for the prediction of microstructural alterations and the teeth’s deformations as well as their fracture behavior. Standardized microindentation tests were applied to apical, medial, and cervical root sections of a mandibular human first molar to determine the spatial distribution of the hard tissue’s properties (indentation modulus, indentation hardness, Martens hardness, indentation creep). Using an indentation mapping approach, the inhomogeneity of mechanical properties in longitudinal as well as in transversal directions were measured. As a result, the tooth showed strongly inhomogeneous material properties, which depended on the longitudinal and transversal positions. In the transversal cutting planes of the cervical, medial, apical sections, the properties showed a comparable distribution. A statistical evaluation revealed an indentation modulus between 12.2 GPa and 17.8 GPa, indentation hardness between 0.4 GPa and 0.64 GPa and an indentation creep between 8.6% and 10.7%. The established standardized method is a starting point for further investigations concerning the intensive description of the inhomogeneous mechanical properties of human dentin and other types of dentin.
机译:对于预测微观结构改变和牙齿的变形以及它们的骨折行为是必要的对根牙本质的机械性能的广泛认识。将标准化的微endentation试验应用于下颌,中颌骨的顶端,内侧和宫颈根部,以确定硬组织性能的空间分布(压痕模量,压痕硬度,Martens硬度,压痕蠕变)。使用压痕映射方法,测量纵向以及横向方向上的机械性能的不均匀性。结果,牙齿显示出强不均匀的材料特性,其依赖于纵向和横向位置。在宫颈,内侧,顶端部分的横向切削平面中,性质显示出可比分布。统计学评估显示12.2GPa和17.8GPa之间的缩进模量,缩进硬度在0.4GPa和0.64gPa之间,压痕蠕变在8.6%和10.7%之间。建立的标准化方法是进一步调查关于人类牙本质和其他类型牙本质的密集机械性能的进一步调查的起点。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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