目的：研究三种不同釉质粘接剂对陶瓷托槽与瓷修复体粘接剪切强度的影响。
Objective: to investigate the shear bond strength of three adhesive systems bonded with ceramic brackets to the porcelain surfaces.
陶瓷托槽抵抗转矩力的强度高于被检测的两种迷你型金属托槽，低于其他金属托槽。
The degree of strength of the ceramic bracket was higher than that of the mini metal bracket.
纳米陶瓷涂层直丝弓托槽与国产普通金属直丝弓托槽相比，具有良好的表面光洁度，且托槽-弓丝摩擦力明显减小。
Compared to normal stainless steel orthodontic brackets, the nano-TiO_2 ceramic coated orthodontic brackets exhibit good surficial characters: low surface roughness and low bracket-wire friction.
纳米陶瓷涂层直丝弓托槽与国产普通金属直丝弓托槽相比，具有良好的表面光洁度，且托槽-弓丝摩擦力明显减小。
Compared to normal stainless steel orthodontic brackets, the nano-TiO_2 ceramic coated orthodontic brackets exhibit good surficial characters: low surface roughness and low bracket-wire friction.
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