Field view confirming plate of rotating arm type dental X-ray CT diagnostic apparatus, rotary arm type dental X-ray CT diagnostic apparatus, and radiographic arm type dental X-ray CT diagnostic apparatus

摘要

PROBLEM TO BE SOLVED: To provide an imaging field confirmation plate of a revolving arm type dental X-ray CT diagnostic system enabling a photographer to check simply and easily by visual perception to which region the outer edge of the imaging field is extended, and capable of expecting accuracy of radiography of dentition.SOLUTION: An imaging field confirmation plate 1 placed on a bite plate 37 for positioning dentition of a patient arranged on an X-ray imaging region of a revolving arm type dental X-ray CT diagnostic system 11 has a constitution comprising a transparent plate 2 on which a cross line CL is drawn, which shows two circles C1 and C2 having large and small diameters which are the same as large and small imaging fields viewed from the rotation center axis direction of a revolving arm 21 and the center O thereof.