Technologies

A dental diagnosis device provided with an occlusion-sound detection unit for detecting an occlusion sound created during occlusion of the teeth, and an analysis unit for analyzing the occlusion of the teeth on the basis of

the occlusion sound detected by the occlusion-sound detection unit, wherein the occlusion-sound detection unit includes a suction cup-shaped suction section for suctioning

onto the teeth; a hollow passage section that is connected to a through-hole provided to the suction section and is controlled to a negative pressure sufficient to allow the suction section to suction onto the teeth: and a detection unit connected to the suction section and used for detecting the occlusion sound via the suction section.