›› 2019, Vol. 39 ›› Issue (6): 514-518.

• Clinical Research • Previous Articles     Next Articles

Study on the efficacy of miniscrew in treatment of Class II Division 2

  

  • Received:2018-10-19 Revised:2018-11-20 Online:2019-06-28 Published:2019-06-25
  • Supported by:
    zdxka

Abstract: Objective To explore the clinical effect and mechanism of orthodontic treatment for Class II Division 2 with miniscrew. Methods A total of 12 adult patients with retroclined maxillary incisors and deep overbite were selected. Anterior teeth were intruded by miniscrews. The changes of upper incisors in CBCT images were measured. Results The inclination of the upper incisors returned to normal in 12 patients. The vertical distance from incisor edge to palatal plane decreased by(1.59±2.05)mm, and incisors labially inclined 19.34°±7.96°. Conclusions In the maxillary anterior region, miniscrew can simultaneously intrude and labially incline upper incisors.

Key words: miniscrew, labial inclination, intrusion, Class II Division 2