[First molar extraction in patients with crowding: cases analysis].

OBJECTIVE

To evaluate the outcome of first molar extraction in patients with crowding.

METHODS

Totally 22 patients (8 males and 14 females) from Clinic of Orthodontics, SUN Yat-sen University School of Stomatology with crowding were collected. The patients were aged 11 years 3 months to 26 years 8 months (mean age 16 years 6 months). All of them treated with 1 to 4 first molar extractions.

RESULTS

The average duration of orthodontic treatment was 18.5 months. Normal overjet and overbite was achieved. Good functional occlusion was established.

CONCLUSIONS

Patients with severe crowding could be successfully treated with first molar extraction.