Fig. 6.

Simulated temperature and thermal stress change as a function of time at the enamel surface, the DEJ and the pulpal wall following 5 °C cold saline ((a) and (b)) and 80 °C hot saline ((c) and (d)) stimulation on an enamel surface. (Reprinted from Archives of Oral Biology with permission from Elsevier.) Thermal stimulation for 5 s was followed by natural convection for35 s in a 25 °C room temperature. The heat transfer coefficient in the simulations was 10 W/(m2K). Initial condition: entire tooth at body temperature (37 °C). Boundary condition: bottom of pulp layer kept at body temperature (37 °C).