Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study

Background: Establishment of a proper occlusal plane is needed for developing an occlusion that is compatible with the biomechanics of a stomatognathic system. There has been a great deal of controversy regarding the anatomic reference point/s taken for identifying the Camper′s plane (Ala-Tragus) to...

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Main Authors: Shashinandan K Venugopalan, C L SatishBabu, M S Rani
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2012-01-01
Series:Indian Journal of Dental Research
Subjects:
Online Access:http://www.ijdr.in/article.asp?issn=0970-9290;year=2012;volume=23;issue=6;spage=719;epage=725;aulast=Venugopalan
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author Shashinandan K Venugopalan
C L SatishBabu
M S Rani
author_facet Shashinandan K Venugopalan
C L SatishBabu
M S Rani
author_sort Shashinandan K Venugopalan
collection DOAJ
description Background: Establishment of a proper occlusal plane is needed for developing an occlusion that is compatible with the biomechanics of a stomatognathic system. There has been a great deal of controversy regarding the anatomic reference point/s taken for identifying the Camper′s plane (Ala-Tragus) to which the occlusal plane is oriented parallel in regular complete denture Prosthodontic practice. There has been no study in literature to correlate the occlusal plane to the Camper′s plane in various skeletal malocclusions using landmarks on a lateral Cephalogram. Aim : The aim of the study isto determine the relative parallelism of the occlusal plane to ala- tragal lines in various malocclusions. Methodology: A total of sixty subjects belonging to Class I, Class II and class III malocclusions were selected for the study. Markings with radiopaque marker of 1 mm diameter were adhered against the superior, middle and inferior border of the tragus and against the lower borer of ala of the nose. Lateral cephalograms were obtained for all of the pateints. Tracing was performed for all of these radiographs. Statistical Analysis Used: Analysis of Variance (ANOVA) test and Post-Hoc test of Bonferroni were used to compare the angles formed at the superior, middle and inferior borders with the occlusal plane. Results: The result from the present study showed that in Class I and Class III malocclusion, the line drawn from the lower border of ala of the nose to the inferior position of the tragus (Camper′ plane C) was relatively parallel to occlusal plane; and, in Class II malocclusion, the line drawn from the lower border of ala of nose to middle border of tragus (Camper′s plane B) was relatively parallel to occlusal plane.
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spelling doaj.art-62f549dada574c20acc4303255964ee92022-12-22T02:51:32ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032012-01-0123671972510.4103/0970-9290.111246Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric studyShashinandan K VenugopalanC L SatishBabuM S RaniBackground: Establishment of a proper occlusal plane is needed for developing an occlusion that is compatible with the biomechanics of a stomatognathic system. There has been a great deal of controversy regarding the anatomic reference point/s taken for identifying the Camper′s plane (Ala-Tragus) to which the occlusal plane is oriented parallel in regular complete denture Prosthodontic practice. There has been no study in literature to correlate the occlusal plane to the Camper′s plane in various skeletal malocclusions using landmarks on a lateral Cephalogram. Aim : The aim of the study isto determine the relative parallelism of the occlusal plane to ala- tragal lines in various malocclusions. Methodology: A total of sixty subjects belonging to Class I, Class II and class III malocclusions were selected for the study. Markings with radiopaque marker of 1 mm diameter were adhered against the superior, middle and inferior border of the tragus and against the lower borer of ala of the nose. Lateral cephalograms were obtained for all of the pateints. Tracing was performed for all of these radiographs. Statistical Analysis Used: Analysis of Variance (ANOVA) test and Post-Hoc test of Bonferroni were used to compare the angles formed at the superior, middle and inferior borders with the occlusal plane. Results: The result from the present study showed that in Class I and Class III malocclusion, the line drawn from the lower border of ala of the nose to the inferior position of the tragus (Camper′ plane C) was relatively parallel to occlusal plane; and, in Class II malocclusion, the line drawn from the lower border of ala of nose to middle border of tragus (Camper′s plane B) was relatively parallel to occlusal plane.http://www.ijdr.in/article.asp?issn=0970-9290;year=2012;volume=23;issue=6;spage=719;epage=725;aulast=VenugopalanCamper′ planelateral cephalogramocclusal plane
spellingShingle Shashinandan K Venugopalan
C L SatishBabu
M S Rani
Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
Indian Journal of Dental Research
Camper′ plane
lateral cephalogram
occlusal plane
title Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
title_full Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
title_fullStr Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
title_full_unstemmed Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
title_short Determination of the relative parallelism of occlusal plane to three ala-tragal lines in various skeletal malocclusions: A cephalometric study
title_sort determination of the relative parallelism of occlusal plane to three ala tragal lines in various skeletal malocclusions a cephalometric study
topic Camper′ plane
lateral cephalogram
occlusal plane
url http://www.ijdr.in/article.asp?issn=0970-9290;year=2012;volume=23;issue=6;spage=719;epage=725;aulast=Venugopalan
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AT clsatishbabu determinationoftherelativeparallelismofocclusalplanetothreealatragallinesinvariousskeletalmalocclusionsacephalometricstudy
AT msrani determinationoftherelativeparallelismofocclusalplanetothreealatragallinesinvariousskeletalmalocclusionsacephalometricstudy