Dental Assistant Ticket

153 practice questions for the Radiation Health and Safety (RHS) exam, DANB's dental x-ray exam. It is part of the CDA, and many states accept it on its own for dental assistants who take x-rays. The questions follow the RHS outline effective March 12, 2025, weighted like the exam: Purpose and Technique (50%), Radiation Characteristics and Protection (25%) and Infection Prevention and Control (25%). Like the real exam, it is digital only: CCD, CMOS and PSP receptors, no film processing. Expect landmarks and what they look like, which image fits which job, paralleling and bisecting, foreshortening and overlap, panoramic positioning errors, kVp and mA, the inverse square law, gray and sievert, dose limits, the ADA/FDA selection criteria and barriers for sensors. Every question is tagged to its outline area and every answer names its public source.