Seeliger Julia, Machoy Monika, Koprowski Robert, Safranow Krzysztof, Gedrange Tomasz, Woźniak Krzysztof
Division of Orthodontics, Technical University Dresden, Dresden, Germany.
Division of Orthodontics, Pomeranian Medical University, Szczecin, Poland.
Biomed Res Int. 2017;2017:8390575. doi: 10.1155/2017/8390575. Epub 2017 Jan 24.
Despite the continuous development of materials and techniques of adhesive bonding, the basic procedure remains relatively constant. The technique is based on three components: etching substance, adhesive system, and composite material. The use of etchants during bonding orthodontic brackets carries the risk of damage to the enamel. Therefore, the article examines the effect of the manner of enamel etching on its thickness before and after orthodontic treatment. The study was carried out in vitro on a group of 80 teeth. It was divided into two subgroups of 40 teeth each. The procedure of enamel etching was performed under laboratory conditions. In the first subgroup, the classic method of enamel etching and the fifth-generation bonding system were used. In the second subgroup, the seventh-generation (self-etching) bonding system was used. In both groups, metal orthodontic brackets were fixed and the enamel was cleaned with a cutter fixed on the micromotor after their removal. Before and after the treatment, two-dimensional optical coherence tomography scans were performed. The enamel thickness was assessed on the two-dimensional scans. The average enamel thickness in both subgroups was not statistically significant.
尽管粘结技术的材料和工艺不断发展，但其基本程序仍相对固定。该技术基于三个要素：蚀刻剂、粘结系统和复合材料。在粘结正畸托槽时使用蚀刻剂存在损害牙釉质的风险。因此，本文研究了正畸治疗前后牙釉质蚀刻方式对其厚度的影响。该研究在体外对一组80颗牙齿进行。将其分为两个亚组，每组40颗牙齿。牙釉质蚀刻过程在实验室条件下进行。在第一个亚组中，使用经典的牙釉质蚀刻方法和第五代粘结系统。在第二个亚组中，使用第七代（自蚀刻）粘结系统。在两组中，均固定金属正畸托槽，并在拆除托槽后用固定在微型电机上的切割器清洁牙釉质。在治疗前后，进行二维光学相干断层扫描。在二维扫描上评估牙釉质厚度。两个亚组的平均牙釉质厚度无统计学差异。
