Nano area evaluation for adhesive mechanism of resin to dentin

树脂与牙本质粘合机制的纳米面积评价

• 批准号: 15592035
• 负责人: AKIMOTO Naotake
• 金额: $ 2.18万
• 依托单位: Tsurumi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15592035/
• 关键词: self etching systems; nanohardness; microtensile Strength test; argon-ion etching; FE-SEM observation; adhesive mechanism; resin-dentin interface; nano area; 硬さ分布

The purpose of this study was to solve the adhesive mechanism of resin to dentin. The mechanical property of resin-dentin interface was evaluated by nanohardhess mesurements, and microtensile bond strength test to human dentin and FE-SEM observations of resin-dentin interface with argon ion etch technique were also performed. The self-etch systems which available on the market were evaluated in this study.We measured adhesive layer of resin-dentin interface by self-etch systems using an ENT-1100a Nanoindentation tester (Elionix, Japan). From the nanohardness results, commercially available self-etch adhesives evaluated in this study showed no significant difference in, hardness of adhesive layer.The human dentin bond strength of an available self-etch systems were evaluated by microtensile bond strength tests. The microtensile bond strength of 2-step self-etch systems were higher than 1-step or one bottled self-etch systems. We were not able to find about the relationship between nanoh … More ardness and bond strength of self-etch systems.The ultra-morphological interaction to human dentin of self-etch adhesive was observed by field-emission SEM (FE-SEM) with argon-ion (Ar-ion) beam etch technique. Ar-ion beam etch technique have been widely employed as SEM observation of resin-dentin interface, describing hybrid layer as composed of a meshwork structure. We examine the meshwork structure after ar-ion etch by FE-SEM, and also observed resin-dentin interface of self-etch adhesives. Our data suggested the meshwork strucrure on resin-dentin interface by ar-ion etch is composed of porymerized primer and bonding resin, hybrid layer and partially exposed collagen fibers.Ar-ion etching of 30-sec's to 2 step self-etch adhesives demonstrated a wide hybrid layer meshwork width (2 to 5 μm) similar to that previously reported, while one-bottled self adhesives showed narrow or no meshwork width (0 tO 0.5 μm) between dentin and adhesive after 30-sec's Ar-ion etching, It was suggested that width of hybrid layer is not necessary for dentin adhesion, and dentin adhesion is not formed only mechanical interlocking to dentin. Less

本研究的目的是解决树脂与牙本质的粘接机理。通过纳米硬度测试评价了树脂-牙本质界面的力学性能，对人牙本质进行了微拉伸粘结强度测试，并利用氩离子蚀刻技术对树脂-牙本质界面进行了FE-SEM观察。本研究对市面上已有的自蚀刻系统进行了评价。我们使用ENT-1100a纳米压痕测试仪（Elionix, Japan），通过自蚀刻系统测量树脂-牙本质界面的粘接层。从纳米硬度结果来看，本研究评估的市售自蚀刻胶粘剂在胶层硬度方面没有显着差异。通过微拉伸粘结强度测试，对一种可用的自蚀刻系统的人牙本质粘结强度进行了评估。两步自蚀刻体系的微拉伸粘结强度高于一步或一瓶自蚀刻体系。我们还没有发现自蚀刻体系的硬度和结合强度之间的关系。采用氩离子（Ar-ion）束刻蚀技术，利用场发射扫描电镜（FE-SEM）观察了自蚀刻胶与人牙本质的超形态相互作用。氩离子束刻蚀技术被广泛应用于树脂-牙本质界面的扫描电镜观察，描述了由网状结构组成的杂化层。利用FE-SEM研究了离子腐蚀后的网状结构，并观察了自腐蚀胶粘剂的树脂-牙本质界面。我们的数据表明，氩离子蚀刻树脂-牙本质界面的网状结构由聚合的底漆和粘合树脂、杂化层和部分暴露的胶原纤维组成。ar离子蚀刻30 ~ 2步的自噬胶粘剂，其杂化层网宽与文献报道相似（2 ~ 5 μm），而单瓶自噬胶粘剂在ar离子蚀刻30秒后，牙本质与胶粘剂之间的网宽较窄，甚至没有网宽（0 ~ 0.5 μm），表明杂化层的宽度对牙本质黏附并不是必需的，牙本质黏附并不仅仅是与牙本质形成机械互锁。少

项目成果

Morphological FE-SEM observation of meshwork structure on the Argon-ion Etched resin-dentin interface

氩离子蚀刻树脂-牙本质界面网状结构的FE-SEM形貌观察

• 发表时间: 2005
• 期刊: Adhes Dent 23
• 作者: Ikejima Iwao;Matsuzawa Norihiko;Fujibayashi Kuniko;Itoh Yoshiya;Momoi Yasuko;Naotake AKIMOTO
• 通讯作者: Naotake AKIMOTO

アルゴンイオンエッチングによるレジン-象牙質接着界面における網目状構造のFE-SEM観察

氩离子刻蚀法FE-SEM观察树脂-牙本质粘接界面网络结构

• 发表时间: 2005
• 期刊: 接着歯学 23・1
• 作者: Ikejima Iwao;Matsuzawa Norihiko;Fujibayashi Kuniko;Itoh Yoshiya;Momoi Yasuko;Naotake AKIMOTO;秋本尚武
• 通讯作者: 秋本尚武

ワンボトルレジンボンディングシステムの被着面の違いによる接着強さ

粘合强度取决于一瓶树脂粘合系统的粘合表面

• 发表时间: 2004
• 期刊: 日本歯科保存学雑誌 47・秋季特別号
• 作者: Ikejima Iwao;Matsuzawa Norihiko;Fujibayashi Kuniko;Itoh Yoshiya;Momoi Yasuko;Naotake AKIMOTO;秋本尚武;AKIMOTO N;秋本尚武;英 將生
• 通讯作者: 英 將生

ワンボトルレジンボンディングシステムにおける超微小押し込み硬さ

一瓶树脂粘合系统中的超细压痕硬度

• 发表时间: 2004
• 期刊: 日本歯科保存学雑誌 47・秋季特別号
• 作者: Ikejima Iwao;Matsuzawa Norihiko;Fujibayashi Kuniko;Itoh Yoshiya;Momoi Yasuko;Naotake AKIMOTO;秋本尚武;AKIMOTO N;秋本尚武;英 將生;原 麻由子
• 通讯作者: 原 麻由子

Morphological FE-SEM Observations on the Resin-Dentin Interface of a New Self-etch Adhesives

新型自酸蚀粘合剂树脂-牙本质界面的 FE-SEM 形貌观察

• 发表时间: 2005
• 期刊: J.Dent.Res 84・Special
• 作者: Ikejima Iwao;Matsuzawa Norihiko;Fujibayashi Kuniko;Itoh Yoshiya;Momoi Yasuko;Naotake AKIMOTO;秋本尚武;AKIMOTO N
• 通讯作者: AKIMOTO N