Bergman Thahar

Evaluasi kesesuaian standar ukuran vertikal slot breket ortodonti The evaluation of the standard validity of vertical orthodontic bracket slot size

On orthodontic treatment, accuracy of orthodontic brackets slot size is essential for maximum interaction between the wire and brackets, so as to distribute the optimal force for tooth movement. The purpose of this study was to determine the accuracy of orthodontic brackets slot size to 0.018 inch standard sizes that are available in the market. The sample was selected by using a random sampling system, which consists of 15 types of brackets of 8 bracket manufacturers with a total sample of 300 samples. Measurements performed on 4 sides of slot bracket, namely the outer and inner sides of the brackets slot, on mesial and distal sides, using a profile projector (Mitutoyo Type PJ250). The results were statistically tested using t-test one side. All brackets have a slot size significantly larger than the standard size. The average percentage of magnification ranged from 5.18-24.29%. So, it was concluded that the size of the slot brackets available in the Indonesian market greater than their standard.