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

尽可能研究极限键合相边界结构的差异以及象牙质量对键合强度的影响。通过试验，建立并研制了微粘接胶强度测量装置。为了分析与晶体结构的相关性，对于粘接部分的面积，它认为大约2mm^2，并购买了一台改进型检测机，符合目的的附件也齐全。并在该区域进行了试验，采用了以往采用的剪切粘接强度，与试验结果相比，大部分材料的粘接强度提高了1.5- 2倍左右。粘结强度评估需要使用界面断裂力学方法进行，与简单的粘结强度测试相比，该方法更为复杂。除了X射线衍射设备外，本实验使用的微段和超膜更能使样品表面的晶体结构清晰，在微段（直径为1微米）中，可以从IOA厚度得知晶体结构。探讨了一种测量试样的方法、一种未来的测量条件，并计划通过固相差和与正常牙的关系来研究胶合强度差异的原因。大多数变成了lmm2，以排除粘合区域，这是近年来报道的可以使粘合相边界的缺陷的影响。得到的结果是，该研究人员也采用了它，不仅认为他是缺陷的现象，而且由于粘接强度也随着面积的增加而增加。纳米压头在离界面10mum处沿牙本质方向的硬度值在不同体系之间存在差异。这似乎受到未被树脂浸渍的脱钙牙本质的存在，以及杂交层的化学性质和结合树脂的组成的差异的影响。在杂化层中，扫描电镜未发现压痕，但结合界面硬度有明显差异。它计划进行相边界观察，这与一种形式，晶体结构，它的机械性质有关。少

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