个别牙齿的扭转和舌向错位不仅影响咀嚼功能 ,而且失去了自洁作用 ,食物残渣易存留和菌斑附着 ,常引起牙龈炎和龋病 ,造成牙齿及牙周组织的破坏 ,并直接影响面部的容貌美 ,给患者的社交活动带来心理危害。过去常用粘接剂粘贴牙面[1] ,重塑扭转及舌向错位前牙的形态 ,亦有用传统 Tooth twist and lingual dislocation of individual teeth not only affect the masticatory function, but also lose their self-cleaning effect. Food residues tend to persist and plaque attach, often causing gingivitis and caries, causing damage to the teeth and periodontal tissues and directly affecting the face The beauty of the face, to the patient's social activities bring psychological harm. In the past often used adhesive paste tooth surface [1], to reshape the twisted and lingual dislocation of the front tooth shape, but also useful traditional