Deformation measurements of periodontal tissues under dental occlusal forces

Yasuyuki Morita, Masakazu Uchino, Mitsugu Todo, Yasuyuki Matsushita, Kazuo Arakawa, Kiyoshi Koyano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Until today, the amount of the local displacement, the data of the local deformation or the loading data obtained from the load cell was only available partially due to the limitation of testing machine and generally used to analyze the displacement and deformation behavior of the periodontal tissues under occlusion forces to investigate the overall behavior of the whole periodontal tissues. Even in some study where the measurements were attempted with using direct imaging techniques, dried periodontal tissues or the photoelastic materials including resins were used. Accordingly their results are assumed to possibly differ from the actual behavior of the in vivo periodontal tissues. In this study, we used a porcine skull obtained from those slaughtered for human consumption to visualize the displacement and deformation behavior of in vivo periodontal tissues under occlusal forces. The prepared specimens were placed on the testing machine, loaded so as to simulate the occlusion pattern by forcing to be deformed and analyzed. Besides the analysis under the occlusal forces, their recovery after unloading, which corresponds to the displacement behavior of the periodontal tissues during the recovery from the occlusal stress was also investigated. In addition, the same test was conducted with using the same but fully dried specimen to reveal the difference in the displacement and deformed behavior between in vivo and dried periodontal tissues. The digital image correlation method was used to visualize the displacement and deformation behavior.

Original languageEnglish
Title of host publicationSociety for Experimental Mechanics - 11th International Congress and Exhibition on Experimental and Applied Mechanics 2008
Pages1972-1978
Number of pages7
Publication statusPublished - Dec 22 2008
Event11th International Congress and Exhibition on Experimental and Applied Mechanics 2008 - Orlando, FL, United States
Duration: Jun 2 2008Jun 5 2008

Publication series

NameSociety for Experimental Mechanics - 11th International Congress and Exhibition on Experimental and Applied Mechanics 2008
Volume4

Other

Other11th International Congress and Exhibition on Experimental and Applied Mechanics 2008
CountryUnited States
CityOrlando, FL
Period6/2/086/5/08

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials

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