X-RAY MACHINE, HEAD INCLINATION MEASUREMENT METHOD APPLIED IN RADIOGRAPHY, AND STAND AND CHAIR FOR X-RAY MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an X-ray machine that can take cephalometric photographs for a side head and a back-to-front head simply with high reproducibility while allowing the head of a subject to be inclined in the same state in a front-to-back direction and that does not involve a risk occurring in such a case as using an orbitale support rod.SOLUTION: An X-ray machine comprises: a pair of arms 12 and 13 that is arranged to oppose each other across a base line 16 and rotatable around the base line 16; ear rods 17 and 18 arranged on opposing inner side surfaces of the pair of arms 12 and 13 respectively; and a head inclination setting device 19 arranged in the arm 13 in order to set the inclination of the head of a subject in a front-to-back direction. The head inclination setting device 19 has a function of a protractor for measuring an inclination angle relative to a horizontal line by using a base point on the arm 13 or the ear rod 18 as a center.