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

A study on an airbration technique to remove the carious dentin

空气振动去除龋齿牙本质技术的研究

基本信息

批准号：
06454535
负责人：
YAMADA Toshimoto
金额：
$ 0.58万
依托单位：
TOKYO MEDICAL AND DENTAL UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06454535/
关键词：
dental caries sandbluster carious dentin airbration 齲蝕除去法アルミナ齲蝕細菌

项目摘要

In the conventional caries treatment, after a proper diagnosis, caries cavity is opened by using high speed air turbine, and then the carious dentin stained with Caries Detector is completely removed by using a round steel bur mounted on a low speed electric engine. The whole cavity and cavity margins are then finished, being followed by a restorative procedure. During these procedures, removing stainable infected dentin tissue requirs skill and much longer chair-time. In order to shorten the troublesome time, we forcused on the Airbration technique developed by Robert B.Black in 1945. However, this technique failed to be clinically popular to remove carious tissue effectively.In this study, we evaluated the possibility of selective caries removal using the Airbrasive technique. Four kinds of airbrasive particles, suchas : alumina powder, glass beads, glass crushed powders, and crushed powders of a polycarbonate resin were selected. Changing the conditions of particle size and air pressure the cutting effects were evaluated with extracted human teeth. The findings were as follows :The Airbrasive technique using crushed particles of polycarbonate resin on intact enamel and dentin showed no effectiveness, but succeeded to cut decalcified dentin effectively. Therefore, this study elucidated the possibility of selective caries removal.

传统的龋齿治疗方法是，在正确诊断后，利用高速空气涡轮打开龋洞，然后利用安装在低速电机上的圆钢车针将沾有龋齿检测仪的龋齿牙本质彻底清除。然后完成整个空腔和空腔边缘，然后进行修复程序。在这些手术过程中，去除可染色的感染牙本质组织需要技巧和更长的椅子时间。为了缩短这个麻烦的时间，我们重点研究了Robert B.Black于1945年开发的Airbration技术。然而，该技术未能在临床上普及，无法有效地去除龋齿组织。在本研究中，我们评估了使用Airbrasive技术选择性去除龋齿的可能性。选择四种空气磨料颗粒，例如：氧化铝粉末、玻璃珠、玻璃碎粉和聚碳酸酯树脂碎粉。改变颗粒大小和气压的条件，用拔出的人类牙齿来评估切割效果。研究结果如下：在完整的牙釉质和牙本质上使用聚碳酸酯树脂粉碎颗粒的气磨技术没有显示任何效果，但成功地有效切割了脱钙的牙本质。因此，本研究阐明了选择性龋齿去除的可能性。