Scherer W, Quattrone J, Chang J, David S, Vijayaraghavan T
College of Dentistry, New York University, 10010.
Am J Dent. 1991 Apr;4(2):99-102.
This study utilized a vital bleaching agent as well as an enamel microabrasion compound with low hydrochloric acid concentration to remove intrinsic stains on the facial surfaces of anterior teeth. In addition, scanning electron microscopic analyses of enamel from extracted teeth compared the etching pattern of the commercial compound used in this study to 18% hydrochloric acid. Type 1 and Type 2 etch patterns were observed with 18% hydrochloric acid after 5 and 20 seconds, respectively. Milder and more diffuse etch patterns were observed with the enamel microabrasion compound. A conservative form of treatment to remove intrinsic stains would employ the use of a vital bleaching agent, followed by an enamel microabrasion compound.
本研究使用了一种活髓漂白剂以及一种低盐酸浓度的釉质微磨除剂，以去除前牙唇面的内源性色斑。此外，对拔除牙齿的釉质进行扫描电子显微镜分析，将本研究中使用的商用化合物的蚀刻模式与18%盐酸的蚀刻模式进行了比较。分别在5秒和20秒后，用18%盐酸观察到了1型和2型蚀刻模式。使用釉质微磨除剂观察到的蚀刻模式更温和、更弥散。一种保守的去除内源性色斑的治疗方法是先使用活髓漂白剂，然后使用釉质微磨除剂。
