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Stress distribution and displacement by different distract directions on mandibu lar corpus / 实用口腔医学杂志
Article in Zh | WPRIM | ID: wpr-541291
Responsible library: WPRO
ABSTRACT
Objective: To study stress distribution and displacement by different distract directioos on mandibular corpus with finite element method. Methods:A three-dimensional finite element model of mandibular distraction osteogenesis was established.Von Mises stress as well as the displac ement of gnathion and gonion under different loads were measured. Result s:The stress and displacement were positively related with distract forc e. Von Mises stress primarily accumulated in distracted areas and were higher un der bilateral distraction parallel to the occlusial plane. Gnathion and gonion w ere positively displaced on X and Z axes and negatively displaced on Y axis. Distraction parallel to the mandibular body induced positive displaceme nt of mandible on X and Y axes and negative on Z axis. Concl usion:Transversal displacement to the opposite side is greater during un ilateral distraction, while displacement on the saggittal plane is greater durin g bilateral distraction.
Key words
Full text: 1 Index: WPRIM Language: Zh Journal: Journal of Practical Stomatology Year: 2001 Type: Article
Full text: 1 Index: WPRIM Language: Zh Journal: Journal of Practical Stomatology Year: 2001 Type: Article