Han J S
Taehan Chikkwa Uisa Hyophoe Chi. 1990 Apr;28(4):381-9.
The maintenance of good oral hygiene in patients with or without prosthesis has been one of the essential parts of the total oral health care. Recently a redesigned air-powder abrasive system was introduced to remove dental plaque and stain from tooth surfaces. This study was designed to evaluate effects of this device on the cementoenamel junction area quantitatively and qualitatively by using the Michigan Computer Graphic Coordinate Measuring system (MCGCMS) and scanning electron microscopy (SEM) after exposure to an air-powder abrasive device. A tooth specimen was exposed to a Cavi-Jet (Dentsply International Inc., York, PA) for 10, 30, 90 seconds intervals. The MCGCMS was utilized before and after treatment of the specimen at each time interval to measure the depth abrasion of the tooth material, and SEM pictures were taken after 90 seconds treatment of the specimen to evaluate surface characteristics. Following conclusions were drawn within the limits the confines of this study. 1. An air-powder abrasive device abrades cementum rapidly and should be used carefully below cementoenamel junction. 2. There was no significant change on the enamel surface quantitatively. 3. The MCGCMS reproduces and measures experimental points accurately.
无论有无假牙，保持良好的口腔卫生一直是全面口腔保健的重要组成部分。最近，一种重新设计的气粉研磨系统被引入，用于去除牙齿表面的牙菌斑和污渍。本研究旨在通过使用密歇根计算机图形坐标测量系统（MCGCMS）和扫描电子显微镜（SEM），在暴露于气粉研磨装置后，对牙骨质釉质界区域的影响进行定量和定性评估。将牙齿标本以10、30、90秒的间隔暴露于Cavi-Jet（登士柏国际公司，宾夕法尼亚州约克）。在每个时间间隔对标本进行处理之前和之后，使用MCGCMS测量牙齿材料的深度磨损，并在对标本进行90秒处理后拍摄SEM照片以评估表面特征。在本研究的范围内得出了以下结论。1. 气粉研磨装置会迅速磨损牙骨质，在牙骨质釉质界以下应谨慎使用。2. 釉质表面在数量上没有显著变化。
