Tooth probing device

The invention discloses a tooth probing device, and relates to the technical field of medical equipment. The tooth probing device comprises a transparent supporting pad, wherein a connecting ring is fixedly arranged on the top surface of the supporting pad; a connecting pad is inserted into the connecting ring; the interior of the connecting pad is of a cavity structure, and the cavity structure is filled with a storage battery; in the connecting ring, a lamp bead is fixedly arranged on the outer wall of the connecting pad; the bottom surface of the supporting pad is fixedly connected with a connecting film; cracks are formed in the inner wall of the connecting film; and the connecting film is filled with photosensitive resin; and in the connecting film, a transition layer is arranged on the bottom surface of the supporting pad. The tooth probing device has the beneficial effects that the connecting film is fed into a tooth hole and is extruded, so that the photosensitive resin is arranged in the connecting f