[Department of a finite element model of the Head Model of HYBRID III Dummy with the Human Mandible].
OBJECTIVE
To analyze the biomechanics of impact injury in the condition of the simulate impact on mandible.


METHODS
A finite element model of human mandible was developed from the CT scan images by the technologies of three-dimensional reconstruction, image processing and meshing. The mandible model was connected to a modified head model of HYBRID III dummy with joint according to the anatomic structure and mechanical characteristics of the temporomandibular joint.


RESULTS
A finite element model of human head with true anatomic structure mandible has been developed. This model has been validated with the cadaver test results. The higher stress was showed in the condyle rejoins and coracoid in the model when mandible was in impact simulation.


CONCLUSIONS
This model can be used to research the mechanism of craniofacial blunt-impact injury and assess the injury severity. The model of HYBRID III dummy with the human mandible was helpful for the boundary design of mandibular model in the impact simulations.
Zhang
Hai-zhong
HZ
Department of Oral Maxillofacial Surgery, General Hospital of People's Liberation Army, Beijing 100853, China.
Huang
Xu-ming
XM
Li
Shi-yong
SY
Liu
Chun-ming
CM
Ma
Chun-sheng
CS
Du
Hui-liang
HL
Huang
Shi-lin
SL
D001696:Biomechanical Phenomena; D020342:Finite Element Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008334:Mandible / Q000033:anatomy & histology*; D008338:Mandibular Injuries / Q000503:physiopathology*; D008953:Models, Anatomic; D014057:Tomography, X-Ray Computed