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A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances

AIM: The aim of this study was to evaluate angulation and inclination of teeth from the study models of individuals with normal occlusion and evaluation of actual expression of torque expressed by three different bracket systems. MATERIALS AND METHODS: In this study, the inclination and angulation w...

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Autores principales: Verma, Sanjeev, Singh, SP, Utreja, Ashok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138791/
https://www.ncbi.nlm.nih.gov/pubmed/25143932
http://dx.doi.org/10.4103/2278-0203.137693
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author Verma, Sanjeev
Singh, SP
Utreja, Ashok
author_facet Verma, Sanjeev
Singh, SP
Utreja, Ashok
author_sort Verma, Sanjeev
collection PubMed
description AIM: The aim of this study was to evaluate angulation and inclination of teeth from the study models of individuals with normal occlusion and evaluation of actual expression of torque expressed by three different bracket systems. MATERIALS AND METHODS: In this study, the inclination and angulation were measured on 30 study models of North Indian individuals. A self-developed instrument (torque angle gauge) was used for the measurement. Fifteen study models were duplicated for the evaluation of torque expression in the bracket of three different manufacturers with different shape and size of bases. RESULTS: The results give the mean, minimum and maximum, standard deviation of the normative data individually for each tooth. A significant correlation was noted in the angulation of maxillary canine and first premolar, and between premolars; and between mandibular central incisor with lateral incisor and canine, and between premolars. CONCLUSIONS: There was a highly significant correlation of teeth angulation and inclination in the maxillary and mandibular arch. Though the error in expression of torque was not significant, but it showed a large range, indicating the need to vary the position of brackets in different bracket systems for achieving optimum torque.
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spelling pubmed-41387912014-08-20 A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances Verma, Sanjeev Singh, SP Utreja, Ashok J Orthod Sci Original Article AIM: The aim of this study was to evaluate angulation and inclination of teeth from the study models of individuals with normal occlusion and evaluation of actual expression of torque expressed by three different bracket systems. MATERIALS AND METHODS: In this study, the inclination and angulation were measured on 30 study models of North Indian individuals. A self-developed instrument (torque angle gauge) was used for the measurement. Fifteen study models were duplicated for the evaluation of torque expression in the bracket of three different manufacturers with different shape and size of bases. RESULTS: The results give the mean, minimum and maximum, standard deviation of the normative data individually for each tooth. A significant correlation was noted in the angulation of maxillary canine and first premolar, and between premolars; and between mandibular central incisor with lateral incisor and canine, and between premolars. CONCLUSIONS: There was a highly significant correlation of teeth angulation and inclination in the maxillary and mandibular arch. Though the error in expression of torque was not significant, but it showed a large range, indicating the need to vary the position of brackets in different bracket systems for achieving optimum torque. Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC4138791/ /pubmed/25143932 http://dx.doi.org/10.4103/2278-0203.137693 Text en Copyright: © Journal of Orthodontic Science http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Verma, Sanjeev
Singh, SP
Utreja, Ashok
A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title_full A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title_fullStr A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title_full_unstemmed A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title_short A normative study to evaluate inclination and angulation of teeth in North Indian population and comparision of expression of torque in preadjusted appliances
title_sort normative study to evaluate inclination and angulation of teeth in north indian population and comparision of expression of torque in preadjusted appliances
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138791/
https://www.ncbi.nlm.nih.gov/pubmed/25143932
http://dx.doi.org/10.4103/2278-0203.137693
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