PROBLEM TO BE SOLVED: To observe without an exchange operation when observing whether teeth in an upper jaw or the teeth in a lower jaw along the direction of dentition.SOLUTION: The dental observation device 1 includes: two illumination light emission sections 6a, 6b arranged face to face with space in between an imaging element 23 for imaging returning light from a tooth A when the tooth A is radiated by the illumination light from the illumination light emission sections 6a, 6b two guide paths for guiding the returning light from the tooth A to the imaging element 23 a light emission setting section 16 for selectively setting the illumination light emission section 6a, 6b to be lit and guide paths switching mechanisms 11, 12 for attaching the imaging element 23 to the guide paths to be movable so that the imaging element 23 is arranged on one of the two light guide paths.COPYRIGHT: (C)2012,JPO&INPIT【課題】上顎の歯牙あるいは下顎の歯牙のどちらを歯列の方向に沿って順に観察していく場合においても、交換作業を行うことなく観察を行う。【解決手段】間隔をあけて対向配置された2つの照明光発光部6a,6bと、該照明光発光部6a,6bからの照明光を歯牙Aに照射したときの歯牙Aからの戻り光を撮影する撮像素子23と、歯牙Aからの戻り光を撮像素子23まで導く2つの導光路と、点灯させる照明光発光部6a,6bを択一的に設定する発光設定部16と、2つの導光路上のいずれかに撮像素子23を配置するように、導光路に対して撮像素子23を移動可能に取り付ける導光路切替機構11,12とを備える歯牙観察装置1を提供する。【選択図】図1
