RHS STUDY GUIDE FOR DANB EXAM | QUESTIONS & 100% VERIFIEDANSWERS | LATEST UPDATE | PASSED

RHS STUDY GUIDE FOR DANB EXAM | QUESTIONS & 100% VERIFIEDANSWERS | LATEST UPDATE | PASSED If there are no teeth to serve as guides, which of the following landmarks indicates a maxillary molar area radiograph? A. Mental foramen B. Incisive foramen C. Internal oblique ridge D. Tuberosity Correct Answer: D. Tuberosity The American Dental Association recommends that radiographs be mounted with the embossed dots A. at the apices. B. on the occlusal surface. C. towards the center. D. all facing in the same direction. Correct Answer: D. all facing in the same direction. 2 When executing a routine hand wash, the dental assistant should lather and scrub for a minimum of A. 15 seconds. B. 30 seconds. C. 20 seconds. D. 25 seconds. Correct Answer: A. 15 seconds. Which of the following extraoral radiographs is used to evaluate impacted teeth, large lesions and fractures of the mandible? A. Lateral jaw projection B. Reverse Towne projection C. Posteroanterior projection D. Waters projection Correct Answer: A. Lateral jaw projection If a patient did not remove earrings prior to exposing a panoramic, the radiograph could have A.ghost images. B.magnified images. C.radiolucent images. D.double images. Correct Answer: A. ghost images. 3 Which of the following best describes what happens when two films contact each other during processing? A.Reticulation B.Static electricity C.Overlapped films D.Fogged films Correct Answer: C. Overlapped films Compared to a round position-indicating device (PID), which of the following PIDs reduces patient radiation exposure by up to 70 percent? A.Closed-end pointed shape B.Oblong-shape C.Rectangular-shaped D.Cone-shaped Correct Answer: C. Rectangular-shaped