Comparison of cranial base morphology between high-angle and low-angle malocclusion patients / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)2000.
Article
Dans Chinois
| WPRIM
| ID: wpr-670980
ABSTRACT
Objective:
To compare the differences of cranial base morphology between high-angle and low-angle malocclusion patients with geometric morphometrics.Methods:
Pretreatment lateral cephalograps of 80 skeletal Class I patients(40 hypodivergent,40 hyperdivergent)were selected.All cephalographs were scanned,and 13 homologous landmarks of cranial base were identified and digitized.Average geometries of cranial bas e were created by means of Procrustes analysis.Thin-plate spline analysis was applied to cranial base configurations to determine local morphology differences between the two vertical facial types.Results:
1.high-angle patients had the cranial base characteristics as follow(1)Horizontal and vertical expansion occured in the sphenoida region,(2)The anterial and posterior cranial bases circled S point opposite direction revolving,which caused cranial base angle to reduce significantly.2.The low-angle the cranial base characteristics was just opposite with high-angle′s.Conclusion:
The shape of cranial base was different between high-angle and low-angle malocclusion patients.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Type d'étude:
Étude pronostique
langue:
Chinois
Texte intégral:
Journal of Practical Stomatology
Année:
2000
Type:
Article
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