Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (11): 1749-1754.doi: 10.3969/j.issn.2095-4344.2014.11.018

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Three-dimensional finite element analysis of canine distalization through reducing resistance and distraction osteogenesis

Shu Lin-jing1, Xue Jun-jie2, 3, Wang Jing4, Xu Yuan-zhi4, Wang Fei-yu1, Tang Xiao-shan4   

  1. 1West China College of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China; 2Department of Orthodontics, State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China; 3Department of Orthodontics, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China; 4Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
  • Revised:2014-01-12 Online:2014-03-12 Published:2014-03-12
  • Contact: Xue Jun-jie, Studying for doctorate, Attending physician, Department of Orthodontics, State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China; Department of Orthodontics, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • About author:Shu Lin-jing, Studying for master’s degree, West China College of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
  • Supported by:

     the Natural Science Foundation for the Youth of Xinjiang Uygur Autonomous Region, No. 2011211B35

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Abstract:

BACKGROUND: Peridental membrane distraction osteogenesis exerts the functions at peridental membrane and leads to tooth movement. Alveolar bone distraction osteogenesis produces tooth movement through the displacement of the whole bone plate.

OBJECTIVE: To establish three-dimensional finite element model of upper and lower jaw of healthy adults under three different conditions, and to compare the stress distribution and distal movement of the models using three-dimensional finite element analysis method.
METHODS: Model 1: three-dimensional finite element model of the canine under normal conditions using a variety of software; Model 2: three-dimensional finite element model of the canine after distracting osteggenesis of the periodontal ligament; Model 3, three-dimensional finite element model of the canine after reducing resistance and distracting osteggenesis of the alveolar bone. The force loadings were stimulated among these models.

RESULTS AND CONCLUSION: The biggest displacements on those three models occurred in canine crown on 1/3, and the displacement quantity on canine was model 2 > model 3 > model 1. The biggest equivalent stress concentrated in distal alveolar crest, and the equivalent stress was model 2 < model 1 < model 3. In the process of canine distal movement, reducing bone resistance and distracting osteggenesis, especially distal alveolar crest of canine, can accelerate the tooth moving speed effectively. And the two ways successfully avoid the loss of anchorage. We should notice that the canine has distal motion tendency under the action of force, appropriate measures should be taken to control it in clinical work.



中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程


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Key words: malocclusion, periodontal ligament, finite element analysis

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