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2013•Journal of Oral Science ResearchRequires access

Changes in Hyoid and Tongue in Patients with Skeletal Class III Malocclusion after BSSRO

Jixia Zhang

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Abstract

Objective:To assess changes in hyoid and tongue in patients with skeletal class Ⅲ malocclusion after bilateral sagittal split ramus osteotomy(BSSRO).Methods:21 patients and 39 Measurements with skeletal Class Ⅲ malocclusion were evaluated.The change of distances from hyoid bone,tongue and mandible to reference frame were analyzed using paired t-test.Results:The hyoid bone(H1-X,H2-X),Greater horn of the hyoid(GR-X,GL-X) and the tongue(TB-X) were increased significantly.The hyoid bone(H1-Z,H2-Z) were decreased significantly.The angle 1 of hyoid decreased and 2 increased significantly.Conclusion:The hyoid significantly moved backward and downward.Greater horn of the hyoid and the tongue significantly moved down.The hyoid significantly changes inclined toward up and forward.

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What this paper is about

Objective:To assess changes in hyoid and tongue in patients with skeletal class Ⅲ malocclusion after bilateral sagittal split ramus osteotomy(BSSRO).Methods:21 patients and 39 Measurements with skeletal Class Ⅲ malocclusion were evaluated.The change of distances from hyoid bone,tongue and mandible to reference frame were analyzed using paired t-test.Results:The hyoid bone(H1-X,H2-X),Greater horn of the hyoid(GR-X,GL-X) and the tongue(TB-X) were increased significantly.The hyoid bone(H1-Z,H2-Z) were decreased significantly.The angle 1 of hyoid decreased and 2 increased significantly.Conclusion:The hyoid significantly moved backward and downward.Greater horn of the hyoid and the tongue significantly moved down.The hyoid significantly changes inclined toward up and forward.

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Available abstract

Objective:To assess changes in hyoid and tongue in patients with skeletal class Ⅲ malocclusion after bilateral sagittal split ramus osteotomy(BSSRO).Methods:21 patients and 39 Measurements with skeletal Class Ⅲ malocclusion were evaluated.The change of distances from hyoid bone,tongue and mandible to reference frame were analyzed using paired t-test.Results:The hyoid bone(H1-X,H2-X),Greater horn of the hyoid(GR-X,GL-X) and the tongue(TB-X) were increased significantly.The hyoid bone(H1-Z,H2-Z) were decreased significantly.The angle 1 of hyoid decreased and 2 increased significantly.Conclusion:The hyoid significantly moved backward and downward.Greater horn of the hyoid and the tongue significantly moved down.The hyoid significantly changes inclined toward up and forward.

Key concepts: Hyoid bone, Tongue, Malocclusion, Medicine, Orthodontics, Dentistry, Mandible (arthropod mouthpart), Anatomy

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