Impaction of both first permanent molar and second permanent molar in lower mandible is rarely. Treatments depend on the degree of molar inclination, the position of first molar and second molar, the classification of bite（Angle’s Ⅰ classification）, the position and the appearance of third molar. A case of successful uprighting a severely impacted right mandibular first molar using a micro implant anchorage, fixed appliance and oral surgical procedures is presented. Methods include surgical extraction of an impacted second molar and acceptable mesial movement of third molar which would move to the position of second molar.
