Abstract
We measured the adhesiveness of chewing gum using a rheometer fitted with an acrylic resin plunger made from denture materials operated under uniform liner motion. In view of mastication, we adopted reasonable measurement conditions of moisture, temperature, and shear rates. Corresponding to the duration of the occlusal phase, we set a hold time of pressure bonding between the plunger and chewing gum. Lower adhesiveness was measured in conditions without hold time. On the contrary, marked adhesiveness was observed under the 0.1-s hold time. It was suggested that the hold time of pressure bonding had a strong effect on the adhesiveness of chewing gum.