The Position of Hyoici Bone in Skeletal Class I, II and III Patients
In this investigation, the position of hyoid bone was compared in three skeletal groups of class I, II and III. The study was based on evaluating 77 lateral cephalometric radiographs, 40 girls and 37 boys, which were divided into 3 groups. Group 1, 2, and 3 consist of 26, 25, and 26 radiographs. 19...
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| Format: | Article |
| Language: | fas |
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Tehran University of Medical Sciences
2000-06-01
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| Series: | Journal of Dental Medicine |
| Subjects: | |
| Online Access: | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4702.pdf&manuscript_id=4702 |
| _version_ | 1811234551873142784 |
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| author | Ravanmehr H Abdollahi D |
| author_facet | Ravanmehr H Abdollahi D |
| author_sort | Ravanmehr H |
| collection | DOAJ |
| description | In this investigation, the position of hyoid bone was compared in three skeletal groups of class I, II and III. The study was based on evaluating 77 lateral cephalometric radiographs, 40 girls and 37 boys, which were divided into 3 groups. Group 1, 2, and 3 consist of 26, 25, and 26 radiographs. 19 cephalometric landmarks and 10 planes were used in order to tracing the radiographs. In all patients, 9 skeletal and 4 cervical vertebrae parameters were measured to determine the hyoid bone. These parameters were compared between three skeletal groups regardless of sex and then, in another statistical analysis, parameters were compared based on patients sex. Statistical analysis showed that in class III patients, the hyoid bone was positioned more anteriorly than two other groups. Also in this group, the hyoid bone had less inclination and it was more horizontal in relation to mandibular plane. In skeletal class II patients this bone was positioned more superiorly than two other groups. Due to these findings it can be concluded that perimandibular muscles and bones could affect the growth of mandible. In addition, comparison of the parameters between two sexes revealed that the hyoid bone was positioned more anteriorly and inferiorly in boys. Also it was shown that in the girls, the position of hyoid bone was closer to the position of this bone in skeletal class I patients. |
| first_indexed | 2024-04-12T11:38:13Z |
| format | Article |
| id | doaj.art-1f46d4f31a19464eaf19d1cbd24bed87 |
| institution | Directory Open Access Journal |
| issn | 1024-641X 2008-2444 |
| language | fas |
| last_indexed | 2024-04-12T11:38:13Z |
| publishDate | 2000-06-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Medicine |
| spelling | doaj.art-1f46d4f31a19464eaf19d1cbd24bed872022-12-22T03:34:45ZfasTehran University of Medical SciencesJournal of Dental Medicine1024-641X2008-24442000-06-01133-42737The Position of Hyoici Bone in Skeletal Class I, II and III PatientsRavanmehr HAbdollahi DIn this investigation, the position of hyoid bone was compared in three skeletal groups of class I, II and III. The study was based on evaluating 77 lateral cephalometric radiographs, 40 girls and 37 boys, which were divided into 3 groups. Group 1, 2, and 3 consist of 26, 25, and 26 radiographs. 19 cephalometric landmarks and 10 planes were used in order to tracing the radiographs. In all patients, 9 skeletal and 4 cervical vertebrae parameters were measured to determine the hyoid bone. These parameters were compared between three skeletal groups regardless of sex and then, in another statistical analysis, parameters were compared based on patients sex. Statistical analysis showed that in class III patients, the hyoid bone was positioned more anteriorly than two other groups. Also in this group, the hyoid bone had less inclination and it was more horizontal in relation to mandibular plane. In skeletal class II patients this bone was positioned more superiorly than two other groups. Due to these findings it can be concluded that perimandibular muscles and bones could affect the growth of mandible. In addition, comparison of the parameters between two sexes revealed that the hyoid bone was positioned more anteriorly and inferiorly in boys. Also it was shown that in the girls, the position of hyoid bone was closer to the position of this bone in skeletal class I patients.http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4702.pdf&manuscript_id=4702Hyoid Bone PositionSkeletal Class IIIIII |
| spellingShingle | Ravanmehr H Abdollahi D The Position of Hyoici Bone in Skeletal Class I, II and III Patients Journal of Dental Medicine Hyoid Bone Position Skeletal Class I II III |
| title | The Position of Hyoici Bone in Skeletal Class I, II and III Patients |
| title_full | The Position of Hyoici Bone in Skeletal Class I, II and III Patients |
| title_fullStr | The Position of Hyoici Bone in Skeletal Class I, II and III Patients |
| title_full_unstemmed | The Position of Hyoici Bone in Skeletal Class I, II and III Patients |
| title_short | The Position of Hyoici Bone in Skeletal Class I, II and III Patients |
| title_sort | position of hyoici bone in skeletal class i ii and iii patients |
| topic | Hyoid Bone Position Skeletal Class I II III |
| url | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/4702.pdf&manuscript_id=4702 |
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