REGISTERED DENTAL ASSISTANT EXAM (AMT) EXAM QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

REGISTERED DENTAL ASSISTANT EXAM (AMT) EXAM QUESTION S AND ANSWERS WITH SOLUTIONS 2024 This helps to isolate posterior areas in the maxillary and mandibular arches by covering Stensen's duct. A. saliva ejector B. dry -angle pad C.HVE D. cotton rolls - ANSWER B. dry -angle pad What is it called when an excess of restorative material extends beyond the tooth margin? A. overhang B. fissure C. low margin D. high margin - ANSWER A. overhang Gypsum materials include which of the following materials? A. plaster B.quick -set stone C.orthodontic stone D.all of the above - ANSWER D. All of the above Which of the following instruments would appear on an amalgam restoration tray? A. rongeurs B. burnisher C.prophy angle D. Curette - ANSWER B. Burnisher Barriers for light handles and chairs should be A. impervious -backed paper or plastic covers. B. easy to remove. C. adequate coverage for all items that are difficult to clean or disinfect. D. all of the above. - ANSWER D. All of the above The type of gloves used during disinfection and clean -up procedures are called A.utility gloves. B.vinyl gloves. C.latex gloves. D.Overgloves. - ANSWER A. Utility gloves The main purpose of surgical hand antisepsis is to A. reduce the chance of contaminating the patient if gloves become punctured or torn. B. eliminate allergic reactions on DHCP hands. C. clean and sterilize the hands before putting on sterile gloves. D. prevent the contamination of the DHCP skin through unnoticed pinholes in the gloves. - ANSWER A. reduce the chance of contaminating the patient if gloves become punctured or torn. Dental handpieces (both high and slow speed) should be sterilized A. after each patient. B. before and after lubrication. C. once a day. D. After working on a patient with a communicable disease. - ANSWER A. After each patient The pulp can best be described as A. consisting of tissue that surrounds and supports the teeth. B. covering the root of the tooth. C. nourishing and protecting the tooth. D. the hardest substance in the body. - ANSWER C. nourishing and protecting the tooth. Amalgam placed in the cavity preparation is most often accomplished by using a(n) A. amalgam carrier. B.condenser. C. carver. D. Burnisher. - ANSWER A. amalgam carrier. In infection control how are radiograph heads or PIDs categorized? A. noncritical B. hypercritical C.critical D. Semicritical - ANSWER A. Noncritical Which of the following is true regarding a bite registration? A. is usually used by the lab to fabricate permanent prostheses B. is used to articulate the maxilla and mandible C. can be made of wax or other putty -like material D.all of the above - ANSWER D. all of the above The distal portion of the tooth refers to which surface? A. the surface toward the midline B. the chewing surface C. the surface closest to the gingival D. the surface away from the midline - ANSWER D. the surface away from the midline The three major elements that make up the x -ray machine are A. the control panel the high -voltage power source and the collimator. B. the vacuum tube; the high -voltage power source; and the operating console. C. the PID; the collimator; and the operating panel. D. the tube head; the PID; and the vacuum tube. - ANSWER B. the vacuum tube; the high -voltage power source; and the operating console. What is the operator zone for a right -handed clinician? A. 12 -5 o'clock B. 4-7 o'clock C. 2-4 o'clock D. 12 -2 o'clock - ANSWER A. 12 -5 o'clock Which of the following is NOT considered a bloodborne pathogen? A. hepatitis A B. hepatitis B C. hepatitis C D.HIV - ANSWER A. hepatitis A Hepatitis D is a A. coinfection with hepatitis B. B. waterborne virus. C. coinfection with hepatitis C. D. foodborne virus. - ANSWER A. coinfection with hepatitis B Patients who are treating alcohol abuse should not be given _____ in the dental office. A. mouthwash B. antibiotics C. anesthetics D. Fluoride - ANSWER A. Mouthwash The dentist asks you to set up an operative tray for a composite restoration on tooth #2 MOD. Which item would NOT appear on the tray?