This study aimed to introduce a procedure for determining the bilinear elastic moduli (E1 and E2) of the periodontal ligament for a mathematical tooth model to analyse stress in the mandible. The bone and tooth morphology were scanned from a dry skull and an extracted intact tooth, respectively, and reconstructed in a three-dimensional finite element model. The model showed good agreement with previously reported in vivo premolar movement when an E1 for the first phase tooth movement of 0.05 MPa and an E2 for the second phase of 8.0 MPa with ε(12) of 0.075 were adopted. The mandible model analysis indicated that a remarkably high maximum compressive stress in the cervical cortical bone and the tensile stress in areas of masticatory muscle attachment were found. Future stress analyses using a jaw model may follow the process of determination of bilinear moduli to enhance accurate simulation with less calculation time.
- MeSH
- analýza metodou konečných prvků MeSH
- biologické modely MeSH
- biomechanika MeSH
- hrot zubního kořene anatomie a histologie MeSH
- lidé MeSH
- mandibula anatomie a histologie fyziologie MeSH
- mechanický stres MeSH
- modul pružnosti MeSH
- musculus masseter anatomie a histologie fyziologie MeSH
- musculus pterygoideus anatomie a histologie fyziologie MeSH
- musculus temporalis anatomie a histologie fyziologie MeSH
- odontometrie MeSH
- periodontální vaz fyziologie MeSH
- počítačová simulace MeSH
- počítačové zpracování obrazu metody MeSH
- pohyb MeSH
- premolár anatomie a histologie fyziologie MeSH
- processus alveolaris anatomie a histologie fyziologie MeSH
- síla skusu MeSH
- zobrazování trojrozměrné metody MeSH
- zubní kořen anatomie a histologie MeSH
- zubní korunka (anatomie) anatomie a histologie MeSH
- zubní lůžko anatomie a histologie fyziologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
