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Abstract <p>Deformation behavior of hydrogenated dentin from intact human teeth was studied in shear testing at room temperature, and the dependence of its mechanical properties on specimen thickness and the degree of dentinal canal filling with water was determined. It was shown that, regardless of specimen thickness and the degree of dentinal canal filling with water, the dentin deformation behavior is similar to that of viscoelastic filled polymers, whereas the dentin’s failure mode in shear was characterized as brittle fracture. It was found that the deformation behavior of thick hydrogenated dentin specimens is independent on the degree of dentinal canal filling with water, which significantly affected only the behavior of thin specimens.</p>

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On the Effect of Water on the Mechanical Properties of Dentin of Intact Human Teeth under Shear Testing

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • D. V. Zaitsev,
  • A. A. Kuklina,
  • P. E. Panfilov

摘要

Abstract

Deformation behavior of hydrogenated dentin from intact human teeth was studied in shear testing at room temperature, and the dependence of its mechanical properties on specimen thickness and the degree of dentinal canal filling with water was determined. It was shown that, regardless of specimen thickness and the degree of dentinal canal filling with water, the dentin deformation behavior is similar to that of viscoelastic filled polymers, whereas the dentin’s failure mode in shear was characterized as brittle fracture. It was found that the deformation behavior of thick hydrogenated dentin specimens is independent on the degree of dentinal canal filling with water, which significantly affected only the behavior of thin specimens.