Abstract:
:An approach was developed to evaluate the load transfer mechanism in the temporomandibular joint (TMJ) area before, during and after mandibular ramus elongation by distraction osteogenesis (DO). In a concerted approach using computer tomography, magnetic resonance imaging (MRI), and finite element analysis, three-dimensional numerical models based on a young male patient, with a dento-facial deformity were generated. The magnitude and direction of the muscle forces acting on the mandible were assessed using both values derived from the muscles volume and cross-section as retrieved from the MRI-scan data-sets and taken from the literature. The resistance of the soft tissue envelope towards elongation during the DO-phase was also included. The finite element analyses showed that before skeletal correction by DO the load transfer was asymmetrical with high peak stresses in the affected joint. Following ramus elongation a more symmetrical loading in TMJs was predicted. The reaction forces in the TMJs during DO were low.
journal_name
Comput Methods Biomech Biomed Enginauthors
Cattaneo PM,Kofod T,Dalstra M,Melsen Bdoi
10.1080/10255840500237953keywords:
subject
Has Abstractpub_date
2005-06-01 00:00:00pages
157-65issue
3eissn
1025-5842issn
1476-8259pii
VU236R4015645446journal_volume
8pub_type
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