华西口腔医学杂志

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颌面骨三维有限元模型中骨缝实体模型的建立

刘畅1,2 朱宪春1 张星3 台银霞1 闫森1   

  1. 1.吉林大学口腔医院正畸科, 长春130021; 2.长春市口腔医院正畸科, 长春130000;3.中国科学院长春光学精密机械与物理研究所, 长春130033
  • 收稿日期:2011-02-25 修回日期:2011-02-25 出版日期:2011-02-20 发布日期:2011-02-20
  • 通讯作者: 朱宪春,Tel:0431-88130677
  • 作者简介:刘畅(1984—),女,吉林人,住院医师,硕士
  • 基金资助:

    吉林省科技厅基金资助项目(200705348)

Sutural physical model building in the three-dimensional finite-element model of maxillofacial bones

LIU Chang1,2, ZHU Xian-chun1, ZHANG Xing3, TAI Yin-xia1, YAN Sen1   

  1. 1. Dept. of Orthodontics, Stomatological Hospital of Jilin University, Changchun 130021, China; 2. Dept. of Orthodontics, Changchun Stomatological Hospital, Changchun 130000, China; 3. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • Received:2011-02-25 Revised:2011-02-25 Online:2011-02-20 Published:2011-02-20
  • Contact: ZHU Xian-chun,Tel:0431-88130677

摘要:

目的在颌面骨三维有限元模型中建立与上颌骨生长密切相关的4条骨缝实体模型。方法以1名个别正常牙合、牙周组织健康、无颞下颌关节疾病的16岁女性为建模素材,应用螺旋CT扫描与有限元法相结合的方法,建立颌面骨的三维有限元模型,并在此基础上建立额颌缝、颧颌缝、颞颧缝、翼腭缝4条与上颌骨生长有关的骨缝实体模型。结果生成了具有86 575个节点、485 915个单元的颌面骨三维有限元模型,其中包括额颌缝、颧颌缝、颞颧缝、翼腭缝4条实体骨缝。结论获得了生物相似性良好的颌面骨三维有限元模型。

关键词: 生物力学, 颌面骨, 三维有限元模型, 骨缝实体模型

Abstract:

Objective To build the physical model of four suturae which are related to the growth of maxilla in the three-dimensional finite-element model of maxillofacial bones. Methods A 16 years old volunteer with individual normal occlusion, good periodontium health condition and without diseases of temporomandibular joint was chosen to be the material of modeling. The three-dimensional finite-element model of the volunteer’s maxillofacial bones was built using the CT scan and the finite-element modeling method. Finally we built the physical model of four suturae which were related to the growth of maxilla in the model of maxillofacial bones. Results The model of maxillofacial bones with 86 575 nodes and 485 915 elements was generated. This model contained four suturae including sutura frontomaxillaris, sutura zygomaticomaxillaris, sutura temporozygomatica and sutura pterygopalatine. Conclusion A three-dimensional finite-element model of maxillofacial bones with good biological similarity was developed.

Key words: biomechanics, maxillofacial bones, three-dimensional finite-element model, physical model of sutura