Experiment set-up. Measurement of the time required to reach the intra-pulp temperature increase of 5.5°C during the grinding experiments: Footswitch with setscrew to adjust the rotational speed of the drive motor, two thermal loggers to record temperatures, a laser-based optic revolution counter. The tooth model is fastened in a machine vise using insulating felt. Thermal sensors lead from intra-pulp to the thermal logger. The rotating diamond grinding disk can be adjusted to each individual tooth model so that maximum contact is guaranteed (see inset).