Taylor N G, Cook P A
Department of Child Dental Health, School of Dentistry, Leeds.
Br J Orthod. 1992 Feb;19(1):25-34. doi: 10.1179/bjo.19.1.25.
To investigate the reliability of bracket positioning, twelve operators, familiar with the straight-wire appliance, placed 0.022" straight-wire brackets on the anterior teeth of a typodont study model, on three different occasions. Bracket position was assessed using a Magiscan image analyser. Angular judgements by the operators were found to be less consistently identified than linear assessments. Slot angulation showed the largest variability and vertical bracket placement the least. The clinical implications of bracket misplacement are discussed.
为研究托槽定位的可靠性，12位熟悉直丝弓矫治器的操作人员在三次不同场合下，将0.022英寸直丝弓托槽放置在一个牙模型的前牙上。使用Magiscan图像分析仪评估托槽位置。发现操作人员的角度判断不如线性评估一致。槽沟角度的变异性最大，托槽垂直放置的变异性最小。讨论了托槽位置不当的临床影响。
