Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion
AbstractIntroduction: The nasal projection should be considered in Cl II patients treatment planning. This study aimed to investigate the morphometric characteristics of the nasal profile in skeletal Cl II patients in a sample of Iranian population.Materials and Methods: In this random analytical/cr...
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| Format: | Article |
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Isfahan University of Medical Sciences
2013-01-01
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| Series: | مجله دانشکده دندانپزشکی اصفهان |
| Subjects: | |
| Online Access: | http://www.jids.mui.ac.ir/index.php/jids/article/view/566 |
| _version_ | 1797764714097278976 |
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| author | Amin Shirvani Saeid Sadeghian Nooshin Fakhari |
| author_facet | Amin Shirvani Saeid Sadeghian Nooshin Fakhari |
| author_sort | Amin Shirvani |
| collection | DOAJ |
| description | AbstractIntroduction: The nasal projection should be considered in Cl II patients treatment planning. This study aimed to investigate the morphometric characteristics of the nasal profile in skeletal Cl II patients in a sample of Iranian population.Materials and Methods: In this random analytical/cross-sectional study cephalometric radiographs of 123 Cl II patient were evaluated using morphometric analysis. The radiographs were superimposed by Procrust superimposition technique and principal component analysis was carried out on 8 nasal soft tissue landmarks and 15 hard tissue landmarks to describe the existing natural tendencies. Multiple linear regression analysis was used to determine the relationship between morphometric characteristics of hard tissue and soft tissue nasal profile. Principal component analysis was carried out using Viewbox 4 orthodontic software and regression analysis was carried out by SPSS 15 software (α = 0.05).Results: Variations of the soft tissue profile of the nose were described by 22 principal components (PCs). The first 7 PCs accounted for approximately 88.5% of the total shape variance. Correlation coefficient of the skeletal and soft tissue components was 35.5%.Conclusion: All Cl II patients have varied nasal forms and there is no significant relationship between skeletal pattern of Cl II patients and their nasal form. Key words: Cephalometry, Malocclusion, Nose, Principal component analysis |
| first_indexed | 2024-03-12T19:59:42Z |
| format | Article |
| id | doaj.art-42918e709d604899a98288b9a55835f7 |
| institution | Directory Open Access Journal |
| issn | 1735-255X 2008-6989 |
| language | fas |
| last_indexed | 2024-03-12T19:59:42Z |
| publishDate | 2013-01-01 |
| publisher | Isfahan University of Medical Sciences |
| record_format | Article |
| series | مجله دانشکده دندانپزشکی اصفهان |
| spelling | doaj.art-42918e709d604899a98288b9a55835f72023-08-02T02:29:20ZfasIsfahan University of Medical Sciencesمجله دانشکده دندانپزشکی اصفهان1735-255X2008-69892013-01-0186503511Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusionAmin ShirvaniSaeid SadeghianNooshin FakhariAbstractIntroduction: The nasal projection should be considered in Cl II patients treatment planning. This study aimed to investigate the morphometric characteristics of the nasal profile in skeletal Cl II patients in a sample of Iranian population.Materials and Methods: In this random analytical/cross-sectional study cephalometric radiographs of 123 Cl II patient were evaluated using morphometric analysis. The radiographs were superimposed by Procrust superimposition technique and principal component analysis was carried out on 8 nasal soft tissue landmarks and 15 hard tissue landmarks to describe the existing natural tendencies. Multiple linear regression analysis was used to determine the relationship between morphometric characteristics of hard tissue and soft tissue nasal profile. Principal component analysis was carried out using Viewbox 4 orthodontic software and regression analysis was carried out by SPSS 15 software (α = 0.05).Results: Variations of the soft tissue profile of the nose were described by 22 principal components (PCs). The first 7 PCs accounted for approximately 88.5% of the total shape variance. Correlation coefficient of the skeletal and soft tissue components was 35.5%.Conclusion: All Cl II patients have varied nasal forms and there is no significant relationship between skeletal pattern of Cl II patients and their nasal form. Key words: Cephalometry, Malocclusion, Nose, Principal component analysishttp://www.jids.mui.ac.ir/index.php/jids/article/view/566CephalometryMalocclusionNosePrincipal component analysis |
| spellingShingle | Amin Shirvani Saeid Sadeghian Nooshin Fakhari Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion مجله دانشکده دندانپزشکی اصفهان Cephalometry Malocclusion Nose Principal component analysis |
| title | Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion |
| title_full | Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion |
| title_fullStr | Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion |
| title_full_unstemmed | Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion |
| title_short | Morphometric analysis of nasal profile in patients with Cl II skeletal malocclusion |
| title_sort | morphometric analysis of nasal profile in patients with cl ii skeletal malocclusion |
| topic | Cephalometry Malocclusion Nose Principal component analysis |
| url | http://www.jids.mui.ac.ir/index.php/jids/article/view/566 |
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