IP Indian Journal of Orthodontics and Dentofacial Research
Official Publication of Khyati Education And Research Foundation
Official Publication of Khyati Education And Research Foundation
Print ISSN: 2581-9356
Online ISSN: 2581-9364
CODEN : IIJOCV
IP Indian Journal of Orthodontics and Dentofacial Research (IJODR) open access, peer-reviewed quarterly journal publishing since 2015 and is published under the Khyati Education and Research Foundation (KERF), is registered as a non-profit society (under the society registration act, 1860), Government of India with the vision of various accredited vocational courses in healthcare, education, paramedical, yoga, publication, teaching and research activity, with the aim of faster and better dissemination of knowledge, we will be publishing the more...Original Article
Author Details :
Volume : 8, Issue : 4, Year : 2022
Article Page : 267-270
https://doi.org/10.18231/j.ijodr.2022.046
Abstract
Introduction: Various types of appliances have been tried by the Orthodontists for the fixed orthodontic treatment. Irrespective of the appliance used the main goal of retraction of anterior teeth in extraction cases is to keep the vertical dimension stable so as not to allow downward and backward rotation of mandible. The aim of this study was to compare changes in mandibular rotation following fixed orthodontic treatment on subjects who have undergone extraction of all first premolars.
Materials and Methods: Pre and post treatment lateral cephalogram of 25 subjects were taken (13 females and 12 males), aged 18-25 years and the tracings were done using Nemoceph software. Parameters assessed were facial height (anterior and posterior), mandibular plane angle (FMA & SN-GoGn), and Jaraback ratio. Student t-test was used to make statistical comparison.
Results: Mean difference of SN-GoGn(0.15 ±0.07), FMA(0.23 ±0.52), Anterior facial height(0.18±0.01) and posterior height(0.45±0.01) and Jaraback ratio(0.47±0.32) did not show statistically significant difference between pre and post treatment.
Conclusion: Mandibular plane did not alter during treatment. When adequate mechanics is followed during treatment desirable treatment outcome with insignificant alteration of mandibular plane can be achieved.
Keywords: Orthodontists, Planmeca proline XC, Cephalogram
How to cite : Chandra D, Tikku T, Khanna R, Verma S L, Maurya R P, Srivastava K, Effect of premolar extraction on mandibular rotation. IP Indian J Orthod Dentofacial Res 2022;8(4):267-270
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