Displacement and Deformation Behaviors of Porcine Mandibular Periodontium Under Simulated Dental Occlusion
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- MORITA Yasuyuki
- 九州大学応用力学研究所
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- UCHINO Masakazu
- 福岡県工業技術センター
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- TODO Mitsugu
- 九州大学応用力学研究所
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- MATSUSHITA Yasuyuki
- 九州大学大学院歯学研究院
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- ARAKAWA Kazuo
- 九州大学応用力学研究所
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- KOYANO Kiyoshi
- 九州大学大学院歯学研究院
Bibliographic Information
- Other Title
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- 咬合を模擬した押込み荷重下でのブタ下顎歯周組織の変位・変形挙動解析
- コウゴウ オ モギシタ オシコミ カジュウカ デノ ブタ カガク シシュウ ソシキ ノ ヘンイ ヘンケイ キョドウ カイセキ
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Abstract
A porcine mandible was separated to prepare thin wet periodontium specimen consisting of a retromolar, periodontal ligament, and alveolar bone. Occlusion test was simulated by applying a forced compressive displacement using a tabletop material tester. We photographed the images of the displacing periodontium specimen and obtained the load-displacement curve during the test. The displacement and deformation distributions were visualized by a digital image correlation analysis. Then, we correlated the distributions with the load-displacement curve, which characterized by biphasic behavior in many previous studies. Additionally, to clarify the potential of dried periodontium specimens as the occlusion specimens, similar experiments using well dried periodontium specimens were conducted to compare the distribution and the load-displacement curve to the wet ones. The results were as follows. (1) We succeeded that the displacement and deformation distributions were correlated with the load-displacement curve for the first time. (2) In the biphasic behavior of the load-displacement curve, we experimentally revealed that the first phase indicates the deformation of the periodontal ligament, and the second one indicates the deformations of the alveolar bone and retromolar. (3) A significant difference was observed in the displacement and deformation distributions and the load-displacement curves between the wet and dried periodontia specimens.
Journal
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- Journal of the Japanese Society for Experimental Mechanics
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Journal of the Japanese Society for Experimental Mechanics 8 (2), 109-114, 2008
The Japanese Society for Experimental Mechanics
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Details 詳細情報について
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- CRID
- 1390282680167006848
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- NII Article ID
- 130004489971
- 10021155741
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- NII Book ID
- AA11822914
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- ISSN
- 18844219
- 13464930
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- NDL BIB ID
- 9568740
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed