Effect of a Fluid on the Deformation Behavior of Human Dentin during Diametral Compression

摘要

The deformation behavior of the dentin in intact human teeth is studied during diametral compression in air, water, and a 18% aqueous solution of NaCl. The deformation behavior of the dentin during diametral compression is shown to change from quasi-brittle during tests in air to viscoelastic during tests in water and the aqueous solution of NaCl. In all cases, a main crack in the dentin develops as in a viscoelastic material, i.e., via microcrack coalescence.