Certified Dental Assistant Questions with Correct Answers

Purpose of filtration Correct Answer absorb long wavelengths and soft radiation Primary beam Correct Answer original ,unaffected useful beam What causes elongation Correct Answer insufficient vertical angulation Reticulation Correct Answer cracking of emulsion-caused by temp difference in solution What bulb is used in safe light Correct Answer 7 1/2 or 15 watt What are filters made from Correct Answer aluminum What causes increased magnification Correct Answer increased focal spot size Causes decreased resolution Correct Answer decreased object distance Edge sharpness Correct Answer increased object film distance Film to be dark Correct Answer over developed,over exposed, developer strong, not enough fixer, exposed to light, Packet placement for bisecting Correct Answer close to tooth as possible but not parallel Dental film composed of Correct Answer blue tinted polyester acetate