Objective To analyze the application of CT three-dimensional reconstruction in the diagnosis and treatment of orthodontic embedded teeth. Methods The CT imaging data of 76 patients with dental malformations treated in the department of stomatology from January 2014 to August 2017 were analyzed retrospectively. All the patients had complete CT plain scan and three-dimensional reconstruction data. The application value of CT three-dimensional reconstruction in the diagnosis and treatment of orthodontic embedded teeth was discussed. Results There were a total of 84 embedded teeth in the 76 patients detected by CT three-dimensional reconstruction, including 59 teeth from the upper jaw and 25 teeth from the lower jaw. There were 76 cases of embedded and impacted single tooth, 4 cases of two teeth and 2 cases of three teeth. 53 teeth were impacted teeth and 31 teeth were embedded supernumerary teeth.Of the 84 embedded teeth, the ratio of canine was 48.81% (41/84), followed by supernumerary teeth (19.02%), and central incisors accounted for 11.90%.Among them, 76.19% were embedded on the tongue and palate side, 10.71% were embedded on the labial buccal side, 75.00% were nearly or moderately embedded, 16.67% were far and moderately embedded. There was presence of absorption of adjacent teeth roots only in 16.07% of all teeth.Of the 84 impacted teeth, there were 46 teeth without reserve value. They were removed under local anesthesia under the guidance of three dimensional reconstruction, and all of them were completely removed, with little bone loss and no damage to adjacent tissues.The remaining 38 embedded teeth were treated by orthodontic traction, and the success rate of traction was 92.10%. Conclusion CT three-dimensional reconstruction technique play an important role in the diagnosis and treatment of orthodontic embedded teeth.