Joseph V P, Rossouw P E, Basson N J
University of Stellenbosch, Tygerberg, Republic of South Africa.
Am J Orthod Dentofacial Orthop. 1992 Oct;102(4):351-9. doi: 10.1016/0889-5406(92)70051-B.
Reproximation (enamel stripping) is described in the literature as a clinical procedure for correction of tooth size deviations. The objective of this study was to qualitatively assess, by means of scanning electron microscopy, (1) the differences exhibited on enamel with mechanical and chemical methods of stripping, and (2) the effect of a synthetic calcifying solution on the etched enamel. Part 1. Sixty human anterior teeth (10 complete sets) that were previously stored in 70% ethanol were subdivided into groups I and II. The teeth in group I were divided into five sets of six teeth mounted in a plaster block in the anterior arch form. Each set was stripped with one of the following mechanical abrasive methods: garnet disks, tungsten carbide and fine diamonds burs, coarse and fine diamond burs, diamond wheel and 3M strips, diamond-coated metal and 3M strips. The teeth in group II were similarly treated, except each set was subjected to a further microabrasive chemical stripping with 37% phosphoric acid used in conjunction with 3M strips. The teeth were then prepared for scanning electron microscopy, viewed, and photographed under magnification. Part 2. Ten human central incisor teeth were etched and used to study the effect of remineralization solutions at various time intervals. The results showed that teeth stripped by routine mechanical abrasive methods exhibited deep furrows and roughness. The teeth that received mechanical and chemical abrasive treatments showed a flattened, etched surface free of furrows. These etched surfaces showed marked crystal growth at 5 and 10 hours after remineralization suggesting the possibility of repair of the chemically altered enamel surface.
文献中将重新贴合（釉质剥脱）描述为一种用于矫正牙齿大小偏差的临床操作。本研究的目的是通过扫描电子显微镜定性评估：（1）机械法和化学法剥脱釉质所呈现的差异；（2）合成钙化溶液对蚀刻釉质的影响。第一部分：将先前保存在70%乙醇中的60颗人类前牙（10套完整牙齿）分为I组和II组。I组的牙齿被分成五组，每组六颗，以牙弓前部形态镶嵌在石膏块中。每组分别采用以下一种机械研磨方法进行剥脱：石榴石盘、碳化钨和细金刚石车针、粗金刚石车针和细金刚石车针、金刚石砂轮和3M条带、金刚石涂层金属和3M条带。II组的牙齿处理方式类似，只是每组先用37%磷酸与3M条带联合进行微研磨化学剥脱。然后将牙齿制备用于扫描电子显微镜观察，在放大倍数下进行观察和拍照。第二部分：选取10颗人类中切牙进行蚀刻，用于研究不同时间间隔下再矿化溶液的效果。结果表明，通过常规机械研磨方法剥脱的牙齿呈现出深沟和粗糙度。接受机械和化学研磨处理的牙齿表面平整、蚀刻，没有沟纹。这些蚀刻表面在再矿化5小时和10小时后显示出明显的晶体生长，这表明化学改变的釉质表面有可能修复。
