SEM and TEM Observation of Ultra Microstructure at Adhesive Interface between Resin and Caries Affected Dentin

Takeaki Endo, M. Kusunoki, K. Itoh, T. Tachikawa, Misa Oikawa, C. Tani, H. Hisamitsu
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引用次数: 1

Abstract

To prevent over-cutting of the sclerotic dentin, we developed a new caries detector (Caries Check, Nippon Shika Yakuhin Co., Ltd., Japan) composed of polypropylene glycol containing acid red. The purpose of this study was to observe the ultra microstructure of the adhesive interface between resin composite and dentin after cutting the dentin in accordance with the conventional Caries Detector or Caries Check staining. In the Caries Check specimen, the dentin tubules were filled with debris and penetration of the bonding agent was limited in the peri-tubular dentin. In the Caries Detector specimen, the dentin tubules were open and a resin tag formed in the dentin tubules. It was possible to conclude that the sclerotic dentin was preserved under the guide of staining by Caries Check. The results suggest that dentin bonding was not obtained by monomer penetration into the superficial substrate dentin or into the dentin tubules.
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树脂与龋病牙本质粘接界面超微结构的SEM和TEM观察
为了防止硬化牙本质的过度切割,我们开发了一种新型的含酸性红聚丙烯乙二醇的蛀牙检测器(龋齿检查,日本Shika Yakuhin株式会社)。本研究的目的是通过常规的龋齿探测器或龋齿检查染色,观察树脂复合材料与牙本质切割后的牙本质粘附界面的超微结构。在龋齿检查标本中,牙本质小管中充满了碎片,并且粘结剂在管周牙本质中的渗透受到限制。在龋齿检测器标本中,牙本质小管是开放的,牙本质小管内形成树脂标签。在龋齿检查染色的指导下,可以得出保留硬化牙本质的结论。结果表明,单体渗透到牙本质表面基质或牙本质小管中并不能形成牙本质结合。
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