患者苏× ,性别女 ,1979年出生 ,就诊年龄 19岁。主诉 :牙齿不齐要求矫治。病人曾在 12岁因牙齿不齐在外地医院做牙齿矫正治疗 ,并自述曾拔除左上第一双尖牙 ,矫治后复发。无口腔不良习惯 ,全身健康。父亲牙齿不整齐。 (图见中心插页 )一、临床检查 :患者正面观面部 ,左右对称 Patient Su ×, female gender, born in 1979, treatment age 19 years. Chief complaint: missing teeth require correction. The patient was orthodontic treatment at a 12-year-old hospital in a foreign hospital because of missing teeth. He also reported that he had removed the first left canine after the correction and was relapsed after correction. No bad oral habits, general health. Father's teeth are irregular. (Figure see the center insert) First, the clinical examination: the patient front view of the face, symmetrical