Abstract: The present invention is a device for simulating lower jaw activity. The device can be utilized in cooperation with an artificial intelligent lower jaw occlusion and attitude recording device. The device comprises a base, an upper jaw tooth mold, an opening and closing rotating platform, a left and right rotating platform, a horizontal rotating platform, a front-back shifting platform and a lower jaw tooth mold. The present invention makes it possible to make lower jaw moving forward and backward, opening and closing (pitch), tilting left and right (yaw), in place rotating (yaw), and etc. Then, according to the data obtained by the artificial intelligent lower jaw occlusion and attitude recording device, the lower jaw activities concluded through the reverse engineering by means of the present invention facilitates production of accurate intra-oral device, and can be applied to unknown complex actions in dental medical research, such as occlusion, bruxism, swallowing, sounding, and etc.

Abstract: An oral examination apparatus includes a head portion including a housing on which are mounted a mirror and a brush at an upper edge thereof, and an electric torch having a light bulb at an upper end thereof engaged with a lower end of the housing, whereby by turning on the electric torch, the light bulb will provide light in a mouth and with assistance of the mirror and the brush, a user can easily observe and clean interior of his/her mouth.