3D Finite Element biomechanical model of the mandible-mucosaexpander apparatus set

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Braga, I (Author) Other; Rocha, D (Author) Other; Utsch, R (Author) Other; Las Casas, EL (Author) Other; Andrade, R (Author) Other; Braga, R (Author) Other; Renato Natal Jorge (Author) FEUP; Pedro Martins (Author) FEUP

Conference proceedings International

Title: BIODENTAL ENGINEERING III

Pages: 43-50

3rd International Conference on Biodental Engineering (BIODENTAL)

Porto, PORTUGAL, JUN 22-23, 2014

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Other information

Authenticus ID: P-009-JJM

Abstract (EN): There are few studies that have examined the effects of human mandibular expansion. This study allows the prediction of forces and displacements in the expansion screw of a mandibular apparatus and the contact pressures distribution on the mucosa during malocclusion disorders treatment. The bone structures are deformable and formed by hard tissues, which mechanical properties and its external shape can modify gradually with the time in function of the stress that they are submitted. Also, it is necessary to take in account that the mucosa acts as a cushion, fading the applied forces. Special devices have to be placed to determine the acting loads over the buccal elements. The geometric model of an asymmetric human mandible was obtained from a computerized tomography with digital images of the patient. The model of the apparatus with expansion screw in the mandible was prepared using a commercial program. In vivo forces measurements were made using precise instrumentation during the acting of the expansion screw apparatus installed in a mandible of a patient. These measurements became input for the mathematical biomechanical model of the dental movement due to the bone growth stimulation using expansion screws. The biomechanical model using the Finite Element Method showed to be an efficient tool to provide the location, distribution and analysis of applied loads. The 3D Finite Element biomechanical model can be a useful tool to improve malocclusion treatments, to develop a correlation between the dental movement theory, growth and bone remodeling and adequate controls of forces and pressures over living structures.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8