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Relationship Between Occlusal Plane and Three Levels of Ala Tragus line in Dentulous and Partially Dentulous Patients in Different Age Groups: A Pilot Study

Identifieur interne : 000D52 ( Main/Exploration ); précédent : 000D51; suivant : 000D53

Relationship Between Occlusal Plane and Three Levels of Ala Tragus line in Dentulous and Partially Dentulous Patients in Different Age Groups: A Pilot Study

Auteurs : Saquib Ahmed Shaikh ; Lekha K ; Gaurav Mathur

Source :

Journal of Clinical and Diagnostic Research : JCDR [ 2249-782X ] ; 2015.

RBID : PMC:4378805

Abstract

Statement of problem: Correct orientation of the occlusal plane plays a vital role in achieving optimal aesthetics, occlusal balance and function of complete dentures. The use of ala tragus line for determination of occlusal plane has been a topic of debate over past many years. Also, the effect of age on level of ala tragal line has not been investigated in the past.

Purpose: To determine the effect of age on location of Ala-Tragus line.

Materials and Methods: A total of 180 patients (90 males and 90 females) were selected with complete dentition and were grouped according to their age in three age groups with 60 subjects in each age group (Group A: 20-35 y, Group B: 36-50 y, Group C: 51-65 y). Right lateral profile photographs were taken with subjects having fox plane placed intraorally parallel to occlusal plane. Reference points corresponding to inferior border, middle or superior border of tragus and inferior border of ala of nose were marked on photographs. These were joined to get three different levels of Ala-Tragus line. Images were analysed photometrically and most parallel relationship was determined in between arms of fox plane (that represented the occlusal plane) and three different levels of ala tragus line. Data obtained was subjected to statistical analysis using Pearson chi-square and Likelihood-ratio chi-square test.

Results: Significant correlation was found between age and level of Ala-Tragus line. The occlusal plane was found to be more parallel to Ala-tragus line when inferior border of tragus was considered as posterior reference point in young adult age group (20-35 y). In older age groups, occlusal plane was found to be more parallel to Ala-tragus line when middle of tragus was considered as posterior reference point.

Conclusion: Within the limitations of this study, it can be concluded that a definite relationship exists in between age and level of ala tragus line.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4378805

DOI: 10.7860/JCDR/2015/11820.5575
PubMed: 25859523
PubMed Central: 4378805

Affiliations:

Le document en format XML

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<affiliation><nlm:aff id="aff1"> Associate Professor, Department of Prosthodontics,<institution>SDM College of Dental Sciences and Hospital</institution>
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<author><name sortKey="Mathur, Gaurav" sort="Mathur, Gaurav" uniqKey="Mathur G" first="Gaurav" last="Mathur">Gaurav Mathur</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Relationship Between Occlusal Plane and Three Levels of Ala Tragus line in Dentulous and Partially Dentulous Patients in Different Age Groups: A Pilot Study</title>
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<front><div type="abstract" xml:lang="en"><p><bold>Statement of problem:</bold>
 Correct orientation of the occlusal plane plays a vital role in achieving optimal aesthetics, occlusal balance and function of complete dentures. The use of ala tragus line for determination of occlusal plane has been a topic of debate over past many years. Also, the effect of age on level of ala tragal line has not been investigated in the past.</p>
<p><bold>Purpose:</bold>
 To determine the effect of age on location of Ala-Tragus line.</p>
<p><bold>Materials and Methods:</bold>
 A total of 180 patients (90 males and 90 females) were selected with complete dentition and were grouped according to their age in three age groups with 60 subjects in each age group (Group A: 20-35 y, Group B: 36-50 y, Group C: 51-65 y). Right lateral profile photographs were taken with subjects having fox plane placed intraorally parallel to occlusal plane. Reference points corresponding to inferior border, middle or superior border of tragus and inferior border of ala of nose were marked on photographs. These were joined to get three different levels of Ala-Tragus line. Images were analysed photometrically and most parallel relationship was determined in between arms of fox plane (that represented the occlusal plane) and three different levels of ala tragus line. Data obtained was subjected to statistical analysis using Pearson chi-square and Likelihood-ratio chi-square test.</p>
<p><bold>Results:</bold>
 Significant correlation was found between age and level of Ala-Tragus line. The occlusal plane was found to be more parallel to Ala-tragus line when inferior border of tragus was considered as posterior reference point in young adult age group (20-35 y). In older age groups, occlusal plane was found to be more parallel to Ala-tragus line when middle of tragus was considered as posterior reference point.</p>
<p><bold>Conclusion:</bold>
 Within the limitations of this study, it can be concluded that a definite relationship exists in between age and level of ala tragus line.</p>
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<name sortKey="Mathur, Gaurav" sort="Mathur, Gaurav" uniqKey="Mathur G" first="Gaurav" last="Mathur">Gaurav Mathur</name>
<name sortKey="Shaikh, Saquib Ahmed" sort="Shaikh, Saquib Ahmed" uniqKey="Shaikh S" first="Saquib Ahmed" last="Shaikh">Saquib Ahmed Shaikh</name>
</noCountry>
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Relationship Between Occlusal Plane and Three Levels of Ala Tragus line in Dentulous and Partially Dentulous Patients in Different Age Groups: A Pilot Study

Relationship Between Occlusal Plane and Three Levels of Ala Tragus line in Dentulous and Partially Dentulous Patients in Different Age Groups: A Pilot Study

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Abstract

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