Provided is a dental X-ray imaging apparatus capable of easily positioning a subject's head. A swivel arm 10 having an X-ray generation unit 2 and an X-ray detection unit 3, an arm support unit 20 that supports the swivel arm 10 so that the swivel arm 10 can swivel, a post unit 30 that supports the arm support unit 20 so that it can be raised and lowered, The jaw positioning unit 50 that is supported by the unit 30 so as to be movable up and down and supports the jaw of the subject provided between the X-ray generation unit 2 and the X-ray detection unit 3, and any of the column unit 30 and the jaw positioning unit 50 And a camera 33 that is capable of photographing from the front direction of the subject's jaw supported by the jaw positioning unit 50, and the optical axis of the camera 33 is directed obliquely upward with respect to the horizontal plane. ing.被験者の頭部位置づけを容易に行うことができる歯科用Ｘ線撮影装置を提供する。Ｘ線発生部２とＸ線検出部３とを有する旋回アーム１０と、旋回アーム１０を旋回可能に支持するアーム支持部２０と、アーム支持部２０を昇降可能に支持する支柱部３０と、支柱部３０に昇降可能に支持され、Ｘ線発生部２とＸ線検出部３との間に設けられた被験者の顎部を支持する顎位置決め部５０と、支柱部３０及び顎位置決め部５０の何れか一方に設けられ、顎位置決め部５０に支持された被験者の顎部の正面方向からの撮影が可能なカメラ３３と、を備え、カメラ３３の光軸が水平面を基準にして斜め上方に向けられている。
