Registered Dental Assistant Exam (AMT)
exam with complete solutions
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 - correct 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 - correct 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 - correct 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 - correct 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. - correct 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. - correct 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. - correct
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. - correct 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. - correct 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. - correct answer ✔✔A. amalgam carrier.
In infection control how are radiograph heads or PIDs categorized?
A. noncritical
B. hypercritical
C.critical
D. Semicritical - correct 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 - correct 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 - correct 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. - correct 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 - correct 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 - correct answer ✔✔A. hepatitis A
Hepatitis D is a
A. coinfection with hepatitis B.
B. waterborne virus.
C. coinfection with hepatitis C.
D. foodborne virus. - correct 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 - correct answer ✔✔A. Mouthwash
exam with complete solutions
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 - correct 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 - correct 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 - correct 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 - correct 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. - correct 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. - correct 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. - correct
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. - correct 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. - correct 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. - correct answer ✔✔A. amalgam carrier.
In infection control how are radiograph heads or PIDs categorized?
A. noncritical
B. hypercritical
C.critical
D. Semicritical - correct 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 - correct 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 - correct 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. - correct 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 - correct 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 - correct answer ✔✔A. hepatitis A
Hepatitis D is a
A. coinfection with hepatitis B.
B. waterborne virus.
C. coinfection with hepatitis C.
D. foodborne virus. - correct 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 - correct answer ✔✔A. Mouthwash
