Registered Dental Assistant Exam

Registered Dental Assistant Exam (AMT) exam / Latest Questions & Detailed Answers (A+ Guide Solutions) 2025 / 2026.

Quiz____?This helps to isolate posterior areas in the maxillary and mandibular arches by covering Stensen's duct.

• saliva ejector
• dry-angle pad

C.HVE

• cotton rolls -

Answer✓✓

• dry-angle pad

Quiz____?What is it called when an excess of restorative material extends beyond the tooth margin?

• overhang
• fissure
• low margin
• high margin -

Answer✓✓

• overhang

Quiz____?Page 1 of 75 1 / 4

Gypsum materials include which of the following materials?

• plaster

B.quick-set stone C.orthodontic stone D.all of the above - Answer✓✓

• All of the above

Quiz____?Which of the following instruments would appear on an amalgam restoration tray?

• rongeurs
• burnisher

C.prophy angle

• Curette -

Answer✓✓

• Burnisher

Quiz____?Barriers for light handles and chairs should be

• impervious-backed paper or plastic covers.
• easy to remove.
• adequate coverage for all items that are difficult to clean or disinfect.
• all of the above. -

Answer✓✓

• All of the above

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Quiz____?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✓✓

• Utility gloves

Quiz____?The main purpose of surgical hand antisepsis is to

• reduce the chance of contaminating the patient if gloves become

punctured or torn.

• eliminate allergic reactions on DHCP hands.
• clean and sterilize the hands before putting on sterile gloves.
• prevent the contamination of the DHCP skin through unnoticed pinholes

in the gloves. - Answer✓✓

• reduce the chance of contaminating the patient if gloves become

punctured or torn.Quiz____?Dental handpieces (both high and slow speed) should be sterilized

• after each patient.
• before and after lubrication.
• once a day.

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• After working on a patient with a communicable disease. -

Answer✓✓

• After each patient

Quiz____?The pulp can best be described as

• consisting of tissue that surrounds and supports the teeth.
• covering the root of the tooth.
• nourishing and protecting the tooth.
• the hardest substance in the body. -

Answer✓✓

• nourishing and protecting the tooth.

Quiz____?Amalgam placed in the cavity preparation is most often accomplished by using a(n)

• amalgam carrier.

B.condenser.

• carver.
• Burnisher. -

Answer✓✓

• amalgam carrier.

Quiz____?In infection control how are radiograph heads or PIDs categorized?

• noncritical

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