A Study of Parallelism of the Occlusal Plane and AlaTragus Line
Background and aims. Orientation of the occlusal plane is one of the most important clinical procedures in prosthodontic rehabilitation of edentulous patients. The aim of this study was to define the best posterior reference point of alatragus line for orientation of occlusal plane for complete de...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Tabriz University of Medical Sciences
2009-12-01
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| Series: | Journal of Dental Research, Dental Clinics, Dental Prospects |
| Subjects: | |
| Online Access: | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/166/133 |
| _version_ | 1818484688353755136 |
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| author | Katayoun Sad Makan Sadr |
| author_facet | Katayoun Sad Makan Sadr |
| author_sort | Katayoun Sad |
| collection | DOAJ |
| description | Background and aims. Orientation of the occlusal plane is one of the most important clinical procedures in prosthodontic
rehabilitation of edentulous patients. The aim of this study was to define the best posterior reference point of alatragus
line for orientation of occlusal plane for complete denture fabrication.
Materials and methods. Fifty-three dental students (27 females and 26 males) with complete natural dentition and Angel’s
Class I occlusal relationship were selected. The subjects were photographed in natural head position while clenching
on a Fox plane. After tracing the photographs, the angles between the following lines were measured: the occlusal plane
(Fox plane) and the superior border of ala-tragus, the occlusal plane (Fox plane) and the middle of ala-tragus as well as the
occlusal plane (Fox plane) and the inferior border of ala-tragus. Descriptive statistics, one sample t-test and independent ttest
were used. P value less than 0.05 was considered significant.
Results. There was no parallelism between the occlusal plane and ala-tragus line with three different posterior ends and
one sample t-test showed that the angles between them were significantly different from zero (P < 0.05). However, the superior
border of ala-tragus line had the lowest mean angle, 1.80° (3.12) and was almost parallel to the occlusal plane.
Conclusion. The superior border of the tragus is suggested as the posterior reference for ala-tragus line |
| first_indexed | 2024-12-10T15:58:11Z |
| format | Article |
| id | doaj.art-6b398f50ad8a4ff9a93fbbba04e72be3 |
| institution | Directory Open Access Journal |
| issn | 2008-210X 2008-2118 |
| language | English |
| last_indexed | 2024-12-10T15:58:11Z |
| publishDate | 2009-12-01 |
| publisher | Tabriz University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Research, Dental Clinics, Dental Prospects |
| spelling | doaj.art-6b398f50ad8a4ff9a93fbbba04e72be32022-12-22T01:42:33ZengTabriz University of Medical SciencesJournal of Dental Research, Dental Clinics, Dental Prospects2008-210X2008-21182009-12-0134107109A Study of Parallelism of the Occlusal Plane and AlaTragus LineKatayoun Sad0Makan Sadr 1Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical science, Tabriz, Iran PhD Student of Anatomy, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran Background and aims. Orientation of the occlusal plane is one of the most important clinical procedures in prosthodontic rehabilitation of edentulous patients. The aim of this study was to define the best posterior reference point of alatragus line for orientation of occlusal plane for complete denture fabrication. Materials and methods. Fifty-three dental students (27 females and 26 males) with complete natural dentition and Angel’s Class I occlusal relationship were selected. The subjects were photographed in natural head position while clenching on a Fox plane. After tracing the photographs, the angles between the following lines were measured: the occlusal plane (Fox plane) and the superior border of ala-tragus, the occlusal plane (Fox plane) and the middle of ala-tragus as well as the occlusal plane (Fox plane) and the inferior border of ala-tragus. Descriptive statistics, one sample t-test and independent ttest were used. P value less than 0.05 was considered significant. Results. There was no parallelism between the occlusal plane and ala-tragus line with three different posterior ends and one sample t-test showed that the angles between them were significantly different from zero (P < 0.05). However, the superior border of ala-tragus line had the lowest mean angle, 1.80° (3.12) and was almost parallel to the occlusal plane. Conclusion. The superior border of the tragus is suggested as the posterior reference for ala-tragus linehttp://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/166/133Ala-tragus linecomplete dentureocclusal plane |
| spellingShingle | Katayoun Sad Makan Sadr A Study of Parallelism of the Occlusal Plane and AlaTragus Line Journal of Dental Research, Dental Clinics, Dental Prospects Ala-tragus line complete denture occlusal plane |
| title | A Study of Parallelism of the Occlusal Plane and AlaTragus Line |
| title_full | A Study of Parallelism of the Occlusal Plane and AlaTragus Line |
| title_fullStr | A Study of Parallelism of the Occlusal Plane and AlaTragus Line |
| title_full_unstemmed | A Study of Parallelism of the Occlusal Plane and AlaTragus Line |
| title_short | A Study of Parallelism of the Occlusal Plane and AlaTragus Line |
| title_sort | study of parallelism of the occlusal plane and alatragus line |
| topic | Ala-tragus line complete denture occlusal plane |
| url | http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/166/133 |
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