关键词: 托槽, 复合树脂修复体, 黏结强度

Abstract: At present， with the progress of orthodontic technology，the improvement of socio-economical levels and people ' s quality， the number of people who require orthodontic treatment has increased and orthodontic treatment becomes popular. Not only children but also adults want to have orthodontic treatment. However， because of various reasons，such as traumatic anterior teeth，dental fluorosis and enamel hypoplasia，some patients already have resin composite in the mouth before receiving orthodontic treatment. Therefore， the direct bonding between the orthodontic bracket and resin composite becomes a universal focus in orthodontic clinicians. This article reviews the several factors that influence the bond strength between the orthodontic bracket and resin composite， such as the resin composite surface treatment methods， the types of adhesives and the structure of bottom bracket. This will provide a reference for clinical applications.

Key words: bracket, resin composite, bond strength