权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Studies on the marginal leakage of matal inlay restoration using the Mercox・Rodamin method

Mercox·Rodamin法研究金属嵌体修复体的边缘渗漏

基本信息

批准号：
07672101
负责人：
TAMURA Naoharu
金额：
$ 1.02万
依托单位：
Fukuoka 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：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07672101/
关键词：
Mercox・Rhodamin method microleakage metal inlay cement base メタルインレー

项目摘要

In resent years, adhesive luting cement which adhere to the tooth and metal substances were developed and are widely used in dental clinic.The purpose of this study was to examine the marginal microleakage of metal inlay which were cemented by Zinc Phosphate Cement, Glass lonomer Cement, Glass Ionomer Resin Cement and Adhesive Resin Cement, using Mercox・Rhodamin Microleakage test methood.Test 1 : Metal inly were cemented in the simple occlusal class I cavity in molar by various luting cements. After 2000times thermal cycling (4-60ﾟC), microleakage were tested by Mercox・Rhodamin. The results were as follows :1. In the floor of the cavity (pulpal wall) on cemented metal inlay, microleakage was found.2. In all specimen cemented by Zinc Phosphate Cement, microleakage reaching the floor of cavity was observed.3. The out line form is one of the major factors to influence microleakage.Test 2 : In clinic, it sometimes happens that metal inlay is cemented in the cavity from which the softdentin was removed after taking the impression. Test 2 simulated these cases. MO class II cavity with and without Base and defects which should be base in the floor and axial wall of cavity, are cemented by three kinds of cements : two kinds of Glass Ionomer Resin Cement (Lute and Vitremer) and Adhesive Resin Cement (Super Bond C&B). After 2000 times thermocycle (4ﾟC * 60ﾟC), microlealage were tested by Mercox・Rhodamin Method. The results were as follows :1. In the pulpal wall, the base and the defect which should have been the base did not influence microleakage reaching the side wall (distal, buccal and lingual wall) and the pulpal wall. But when the defect extended to the side wall, microleakage increased.2. The base and the defect in the axial wall, increased microleakage.3. In most cases, microleakage were found in the cervical wall.

近几年发展起来的粘接剂是一种粘结牙齿和金属的粘结剂，广泛应用于牙科临床。本研究的目的是用Mercox·RODAMIN微渗漏试验法检测由磷酸锌粘固剂、玻璃离子粘固剂、玻璃离子粘固剂和粘接树脂粘结的金属嵌体的边缘微渗漏情况。2000次热循环(4~60ﾟC)后，用Mercox·罗丹明进行微渗漏检测。结果如下：1.粘结金属嵌体的窝洞(牙髓壁)底部有微渗漏。所有用磷酸锌粘固剂粘接的试件中，均有微渗漏到达窝洞底面。实验二：在临床上，有时会发生金属嵌体粘结在取下印模后取出软牙本质的空洞中。测试2模拟了这些情况。用两种玻璃离子树脂粘固剂(LUTE和Vitremer)和粘结剂(Super Bond C&B)粘接Mo-II类有底和不带底的洞及洞底壁和中轴壁的缺陷。2 0 0 0次热循环(4ﾟC×6 0ﾟC)后，用MERCOX·罗丹明法检测微滤液。结果如下：1.在牙髓壁中，基底部和本应作为基底部的缺损处不影响到达侧壁(远端、颊、舌侧壁)和牙髓壁的微渗漏。但当缺陷扩展到侧壁时，微渗漏增加。底部和轴向壁处的缺陷，增加了微渗漏。在大多数病例中，宫颈壁微渗漏。