Stomatology ›› 2022, Vol. 42 ›› Issue (9): 856-859.doi: 10.13591/j.cnki.kqyx.2022.09.017

• Summary • Previous Articles     Next Articles

Progress of research on the influence of extraction mode of premolars on Bolton ratio in orthodontics

SONG Ye, HAN Jingying   

  1. Department of Orthodontics, The Second Affiliated Hospital of Harbin Medical University,Harbin 150000,China
  • Revised:2022-02-28 Online:2022-09-28 Published:2022-09-20

Abstract: After Bolton, Chinese scholars have carried out a series of related studies to explore the effect of extraction mode of premolars on Bolton ratio. However, there are both consensus and differences in relevant studies, and the standard for optimal over-all ratio after the extraction of four premolars in Chinese hasn′t been established. This paper summarizes progress of relevant research, aiming to provide reference for further research and clinical practice.

Key words: orthodontics, orthodontic extraction treatment, premolar, Bolton ratio, occlusion

CLC Number: