3D-Nurbs in establishment of three-dimensional finite element model of maxillary anterior dentition segment
- Author:
Yan HE
1
Author Information
1. Department of Stomatology
- Publication Type:Journal Article
- Keywords:
3D-Nurbs;
Finite element model;
Maxillary anterior dentition
- From:
Academic Journal of Second Military Medical University
2010;28(10):1123-1125
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To search for a new method for establishing high precision 3D finite element model of maxillary anterior dentition segment. Methods: Spiral CT (SCT) scanning was used to obtain the data of digital imaging and communications in medicine (DICOM) of teeth and the periodontal tissues; the data were used to construct the iges NURBS model by combining converse engineering software Geomagic and computer-aided design (CAD). The 3D finite element analysis model was created after the unit lattice was meshed and checked by Hypermesh pre-processors. Results and Conclusion: We have successfully established the high quality 3D model of maxillary anterior dentition segment and the periodontal tissues (including periodontal ligament and alveolar bone); the model contained 640 396 tetrahedrons and 117 889 nodes. The present method is easy-to-use and is suitable for establishing the model for complex tissues like teeth and periodontal tissues. The established model has a high comparability and provides a good basis for studying the biomechanic behavior of maxillary anterior dentition segment under different orthodontic force systems.
