thodontics is considerably pared to surgery or other invasive medical and dental therapies, there is heless growing concern about medicolegal issues and risk management within the munity.Р4Р引起正畸医疗纠纷的原因很多,包括:?1、治疗方案选择不当?2、医患沟通不够?3、医生经验不足?4、医师操作失误?5、异常生长发育被忽视Р彭友俭、程祥荣、敖妮娜,61例口腔正畸医疗纠纷的原分?析,中华医院管理杂志,2006,22,10,695-696。Р5Р医源性疾病(Iatrogenic disease),?是由于医生的诊断、治疗中实施不当?所引发的一类疾病。Р6РRiskР治疗前方案的设计和选择不当Р治疗中出现的一系列负效应Р治疗后?的保持?和异常?生长Р7РRisk and controlР1、牙釉质损伤(Enamal lesions)?2、牙根吸收(Root resorption)?3、牙周支持组织损伤(Periodontal tissue injury)?4、颞下颌关节损伤(TMJ injury)Р8РEnamal lesionsРPlaqueРBracket’s bonding and?remove bondingР10РBracket’s bondingР酸蚀使釉柱间质溶解,有文献报道使用自酸蚀材料粘结托槽对牙釉质表面产生的损伤程度小。Р Buyukyilmaz T,Usumez S,Karaman AL.Effect of self-etching primers on bond strength are they reliable?Angle Orthod 2003;73:64-70.