〔Abstract〕 To study the elastic fixation clinical application of orthodontic straight wire appliance combined with pad in the treatment of traumatic tooth dislocation and to evaluate the clinical effect. 36 cases with 82 teeth of traumatic tooth dislocation were studied retrospectively and the patients were divided into two groups according to the type of treatment. The study group of 44 teeth were treated with orthodontic straight wire appliance and combined with pad.The control group of 38 teeth were treated with traditional resin splint bonded metal wire. According to the functional state and the symptoms after treatment,the therapeutic effect was classified as significant,effective and ineffective. In the study group,36 teeth were markedly effective,8 teeth were effective,and the effective rate was81. 82%. In the control group,20 teeth were markedly effective,18 teeth were effective,and the effective rate was52. 63%. The differeance between the two groups was statistically significant( P = 0. 005). The treatment of tooth dislocation with orthodontic straight wire appliance combined with pad technique is expected and better,hence it is recommended.