Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (30): 5586-5590.doi: 10.3969/j.issn.1673-8225.2010.30.019

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Establishment of three dimensional finite element parameterization models of continuous post-and-core crown with diameter and length variation

Gao Jian-yong1, Wang Shao-hai1, Zhu Qiang1, Wang Dong-mei2, Zheng Yuan-li3   

  1. 1 Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai  200433, China; 2 School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai  200240, China; 3 Department of Prosthodontics, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai  200011, China
  • Online:2010-07-23 Published:2010-07-23
  • Contact: Zheng Yuan-li, Department of Prosthodontics, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
  • About author:Gao Jian-yong★, Master, Attending physician, Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China yanshaowang@126.com

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Abstract:

BACKGROUND: Univariate or integer analysis is used for analyzing diameter and length variation of continuous post-and-core crown due to the limitation of software and hardware technology. Many finite element models involved in this analysis, thus, the deviation exists between groups.
OBJECTIVE: To construct three dimensional finite element models of continuous post-and-core crown with diameter and length variation.
METHODS: Thin slice CT scanning technology was used in combination with Matlab software to identify tooth margin. Pro/E and Ansys software was utilized to rebuild three dimensional maxillary central incisor model based on the thin slice CT scanning images. The diameter of post and length of post were set as the input vadables in Ansys Workbench software. The diameter of post ranged from 1.0 to 4.1 mm, and length of post ranged from 3.0 to 8.0 mm. The models were meshed and analyzed in Ansys workbench 10.0 software automatically.
RESULTS AND CONCLUSION: Establishment of three dimensional finite element models of continuous post-and-core crown of nickel-chromium alloy and carbon fiber with diameter and length variation. Continuous post diameter and length changing three dimensional finite element models can be rebuilt by bidirectionaI parameter transmit of Ansys workbench software and Pro/E software．

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