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Hayashida, H., Hideki, I., Shunsuke, N., Ichiro, T. and Amy, L.C. (2010) Effects of Retraction of Anterior Teeth and Initial Soft Tissue Variables on Lip Changes in Japanese Adults . European Journal of Orthodontics, 33, 419-426.
https://doi.org/10.1093/ejo/cjq095

has been cited by the following article:

• TITLE: Evaluation of Interincisal Angle and Lip Position in Class II Division 1 Malocclusion Treatment with Upper Premolar Extraction

  AUTHORS: Elih Sayuti, Yuliawati Zenab

  KEYWORDS: Lip Position, Facial Profile, Incisor Retraction

  JOURNAL NAME: Open Access Library Journal, Vol.6 No.2, February 28, 2019

  ABSTRACT: Introduction: Protrusive anterior teeth in class II division 1 malocclusion cause the facial profile to become convex with anterior teeth retraction is expected to correct protrusive teeth and improve facial profile. The purpose of this study was to determine whether there was a change in lip position after incisor retraction in the treatment of class II division 1 malocclusion with extraction of maxillary premolars. This study was carried out on lateral cephalometry before and after treatment in 25 patients with class II division 1 malocclusion to evaluate changes in lip position with the Burstone method. To assess the results of treatment, statistical analysis was performed using t test and the Wilcoxon test. Result: The results of the comparison test of the facial profile of the upper lip and lower lip before and after treatment showed a p-value of 0.001 (p-value 0.001