Objective : the purposes of this study were to compare the expulsion rates of orthodontic brackets bonded by different methods to series fluorotic teeth and to find a effective method for increasing bonding strength of orthodontic bracket bonded to fluorotic teeth 摘要目的通过正畸临床上重度氟斑牙采用光固化贴面粘结托槽技术和托槽直接粘结技术的临床效果的比较，为临床氟斑牙的托槽粘结提供一种有效的方法。
