EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE
<font><font color="#555555"><span style="font-size: 10pt; font-family: Tahoma">Introduction. The ANB angle has been recognized as a skeletal sagittal discrepancy indicator and has become the most commonly used measurement since that time....
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2000-09-01
|
| Series: | Journal of Research in Medical Sciences |
| Subjects: | |
| Online Access: | http://journals.mui.ac.ir/jrms/article/view/3530 |
| _version_ | 1811321880567611392 |
|---|---|
| author | SH ALAVI |
| author_facet | SH ALAVI |
| author_sort | SH ALAVI |
| collection | DOAJ |
| description | <font><font color="#555555"><span style="font-size: 10pt; font-family: Tahoma">Introduction. The ANB angle has been recognized as a skeletal sagittal discrepancy indicator and has become the most commonly used measurement since that time. It seems this angle is affected by several factors other than the anteroposterior position of maxilla and mandible.<br />Methods. Tracing on lateral cephalometry films was done for 110 untreated cases with class I, II, III malocclusions. regression analysis was used to describe the proportion of the distorting factors caused by usual changes in the cranial and facial skeleton. <br />Results. ANB mean differences between malocclusion groups was significant. Regression analysis between ANB, SN/MP and SNA angles in all groups was significant. The highest coefficient of determination was found in class I sample and the lowest was found in class II sample.<br />Discussion. The results revealed that another factors can influence of ANB angle. These factors are rotation of SN plane, the length of the SN and rotation of jaws. Thus the use of normal range for ANB angle in determination of sagittal position of maxilla and mandible is incorrect and it must substitute with accurate parameters.</span></font></font> |
| first_indexed | 2024-04-13T13:25:24Z |
| format | Article |
| id | doaj.art-c81e9341338c4913808aa01b1ef38e5b |
| institution | Directory Open Access Journal |
| issn | 1735-1995 1735-7136 |
| language | English |
| last_indexed | 2024-04-13T13:25:24Z |
| publishDate | 2000-09-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Research in Medical Sciences |
| spelling | doaj.art-c81e9341338c4913808aa01b1ef38e5b2022-12-22T02:45:10ZengWolters Kluwer Medknow PublicationsJournal of Research in Medical Sciences1735-19951735-71362000-09-0153EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLESH ALAVI<font><font color="#555555"><span style="font-size: 10pt; font-family: Tahoma">Introduction. The ANB angle has been recognized as a skeletal sagittal discrepancy indicator and has become the most commonly used measurement since that time. It seems this angle is affected by several factors other than the anteroposterior position of maxilla and mandible.<br />Methods. Tracing on lateral cephalometry films was done for 110 untreated cases with class I, II, III malocclusions. regression analysis was used to describe the proportion of the distorting factors caused by usual changes in the cranial and facial skeleton. <br />Results. ANB mean differences between malocclusion groups was significant. Regression analysis between ANB, SN/MP and SNA angles in all groups was significant. The highest coefficient of determination was found in class I sample and the lowest was found in class II sample.<br />Discussion. The results revealed that another factors can influence of ANB angle. These factors are rotation of SN plane, the length of the SN and rotation of jaws. Thus the use of normal range for ANB angle in determination of sagittal position of maxilla and mandible is incorrect and it must substitute with accurate parameters.</span></font></font>http://journals.mui.ac.ir/jrms/article/view/3530ANB angle, Maxilla, Mandibule, Skeletal sagitall discrepancy |
| spellingShingle | SH ALAVI EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE Journal of Research in Medical Sciences ANB angle, Maxilla, Mandibule, Skeletal sagitall discrepancy |
| title | EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE |
| title_full | EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE |
| title_fullStr | EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE |
| title_full_unstemmed | EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE |
| title_short | EVALUATION OF ANB ANGLE IN DETERMINATION OF A-P POSITION OF MAXILLA AND MANDIBLE |
| title_sort | evaluation of anb angle in determination of a p position of maxilla and mandible |
| topic | ANB angle, Maxilla, Mandibule, Skeletal sagitall discrepancy |
| url | http://journals.mui.ac.ir/jrms/article/view/3530 |
| work_keys_str_mv | AT shalavi evaluationofanbangleindeterminationofappositionofmaxillaandmandible |