The influence of the teeth crystal structure to the bonding mechanism and strength

牙齿晶体结构对粘接机制和强度的影响

• 批准号: 09672009
• 负责人: KAWADA Eiji
• 金额: $ 1.6万
• 依托单位: TOKYO DENTAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09672009/
• 关键词: Dentin; Micro hardness; Crystal structure; Micro X-ray diffract; Micro bond strength; Bonding mechanism; film X-ray diffract; 薄膜X線回析; 接着歯学; 樹脂含浸層; プライマー; 微少接着強さ; ダンベル型試験片; X線回析; 結晶

To investigate the influence which the difference of the structure of the limit bonding phase boundary and moreover the ivory quality exerts on the one of the bonding strength as far as it is possible. It set up and it developed micro bonding gluing strength measurement equipment by the examination.To analyze relate-ability with the crystal structure, as for the area of the gluing part, it thought of about 2mm^2 and it bought an improvement-type examination machine for its purpose and attachment which agreed with the purpose, too, was complete.Also, it experimented at the area, it put on shear bonding strength which was adopted in the past and about 1.5-twice of gluing strength were shown at most of the material compared with the result of the examination. Bond strength evaluation will need to performed using an interfacial fracture mechanics approach, which is more complicated compared with the simple bond strength test.In addition to that the equipment of the diffraction of the X ray … More of the micro subsection and the super film to be using for this experiment can make the crystal structure of the sample surface clear not, in the micro subsection (the 1- mum diameter), the crystal structure from the IOA thickness can be known. It examines a way of measuring sample, a measurement condition more in the future and it plans to examine the cause of the difference with gluing strength by the solid difference and relation with normal teeth. Most became lmm2 to exclude as far as the bonding area which is reported in recent years can make the influence of the flaw of the gluing phase boundary. It gets the result that this study person, too, adopted it, not to have thought only that he is the phenomenon of the flaw but for gluing strength, too, to have been increased with the area.Nano indenter hardness values at the point 10mum away from the interface in the direction of the dentin differed between system. This appeared to be influenced by the presence of the decalcified dentin not impregnated by resin, and by differences in both the chemistry of the hybrid layer and the composition of bonding resin. In the hybrid layer, no impression was found by SEM, although the hardness in the bonding interface was significantly different. It plans to pursue phase boundary observation having to do with a form, the crystal structure, the mechanical nature of it more. Less

尽可能地研究极限键合相界结构的差异以及象牙质量对键合强度的影响。通过试验，建立并开发了微粘接胶合强度测量设备。为了分析与晶体结构的相关性，对于胶合部分的面积，考虑约为2mm^2，为此购买了改进型试验机，附件也符合目的。并在该区域进行了试验，与试验结果相比，大多数材料的剪切粘结强度提高了1.5- 2倍。粘结强度的评价需要采用界面断裂力学方法，这比简单的粘结强度试验要复杂得多，此外，还需要使用X射线衍射设备， ...更多信息 用于本实验的微区和超膜的厚度可以使样品表面的晶体结构不清晰，在微区（1 μ m直径）中，可以从IOA厚度获知晶体结构。它检查了一种测量样品的方法，未来更多的测量条件，并计划通过固体差异和与正常牙齿的关系来检查胶合强度差异的原因。大多数为lmm 2，以排除近年来报道的粘结面积可使粘结相界的缺陷的影响。得到的结果是，这个研究人员，也采用了它，没有想到的只是，他是缺陷的现象，但对于胶合强度，也已增加与面积。纳米压头硬度值在点10微米远离界面的方向上的牙本质不同系统之间。这似乎受到未被树脂浸渍的脱钙牙本质的存在以及混合层化学成分和粘合树脂成分差异的影响。在混合层中，通过SEM没有发现压痕，尽管在结合界面的硬度有显著差异。它计划追求相界观察与形式，晶体结构，它的机械性质更多。少