The antero posterior relation of maxilla with saddle angle
Facial prognathism, which is a problem in some orthodontic patients, is characterized by a number of cephalometric changes. Most clinicians use SNA angle in lateral cephalometric analysis to evaluate the amount of maxillary prognathism. Since SNA angle is not a reliable measurement for maxillary pro...
| Main Authors: | , |
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| Format: | Article |
| Language: | fas |
| Published: |
Tehran University of Medical Sciences
1999-01-01
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| Series: | Journal of Dental Medicine |
| Subjects: | |
| Online Access: | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4741.pdf&manuscript_id=4741 |
| _version_ | 1819032092841869312 |
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| author | Ravanmehr H Kashani K |
| author_facet | Ravanmehr H Kashani K |
| author_sort | Ravanmehr H |
| collection | DOAJ |
| description | Facial prognathism, which is a problem in some orthodontic patients, is characterized by a number of cephalometric changes. Most clinicians use SNA angle in lateral cephalometric analysis to evaluate the amount of maxillary prognathism. Since SNA angle is not a reliable measurement for maxillary prognathism, and taking into account that the amount of prognathism changes in relation to cranial anatomy, according to Bjork it's better to measure the facial prognathism by the angle between anterior and posterior cranial base. According, two angles are recommended NSBa and NSAr."nIn this study 80 lateral cephalograms from three malocclusion groups, were studied and the amount of maxillary prognathism in relation to SNA and NSAr angles and their relationship to each other were measured."nThe results were as follows:"n1- Studying facial prognathism in relation to SNA and NSAr angles it was found that SNA angle is influenced by cranial base shape"n2- The mean value of anterior and posterior cranial bases didn't show significant differences."n3- The mean value of SNA angle didn't show significant statistical difference in various malocclusion groups."n4- The correlation coefficient of ANB angle and wit's measurement is low. |
| first_indexed | 2024-12-21T06:56:27Z |
| format | Article |
| id | doaj.art-eab638c947ca42908ae421f385739c90 |
| institution | Directory Open Access Journal |
| issn | 1024-641X 2008-2444 |
| language | fas |
| last_indexed | 2024-12-21T06:56:27Z |
| publishDate | 1999-01-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Medicine |
| spelling | doaj.art-eab638c947ca42908ae421f385739c902022-12-21T19:12:19ZfasTehran University of Medical SciencesJournal of Dental Medicine1024-641X2008-24441999-01-01114510The antero posterior relation of maxilla with saddle angleRavanmehr HKashani KFacial prognathism, which is a problem in some orthodontic patients, is characterized by a number of cephalometric changes. Most clinicians use SNA angle in lateral cephalometric analysis to evaluate the amount of maxillary prognathism. Since SNA angle is not a reliable measurement for maxillary prognathism, and taking into account that the amount of prognathism changes in relation to cranial anatomy, according to Bjork it's better to measure the facial prognathism by the angle between anterior and posterior cranial base. According, two angles are recommended NSBa and NSAr."nIn this study 80 lateral cephalograms from three malocclusion groups, were studied and the amount of maxillary prognathism in relation to SNA and NSAr angles and their relationship to each other were measured."nThe results were as follows:"n1- Studying facial prognathism in relation to SNA and NSAr angles it was found that SNA angle is influenced by cranial base shape"n2- The mean value of anterior and posterior cranial bases didn't show significant differences."n3- The mean value of SNA angle didn't show significant statistical difference in various malocclusion groups."n4- The correlation coefficient of ANB angle and wit's measurement is low.http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4741.pdf&manuscript_id=4741Saddle angleMaxillary prognathismSNA angle |
| spellingShingle | Ravanmehr H Kashani K The antero posterior relation of maxilla with saddle angle Journal of Dental Medicine Saddle angle Maxillary prognathism SNA angle |
| title | The antero posterior relation of maxilla with saddle angle |
| title_full | The antero posterior relation of maxilla with saddle angle |
| title_fullStr | The antero posterior relation of maxilla with saddle angle |
| title_full_unstemmed | The antero posterior relation of maxilla with saddle angle |
| title_short | The antero posterior relation of maxilla with saddle angle |
| title_sort | antero posterior relation of maxilla with saddle angle |
| topic | Saddle angle Maxillary prognathism SNA angle |
| url | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4741.pdf&manuscript_id=4741 |
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