RDA Practice Exam Questions and Verified
Answers Latest
Question 1
When a patient is injured by an auxiliary who is liable?
Correct Answer
1. Dentist
2. Employee
Question 2
Indirect pulp capping - the medication of choice is?
Correct Answer
Calcium Hydroxide
Question 3
Cavity varnish - primary function is to?
Correct Answer
Prevent microscopic leakage by sealing dentinal tubules
Question 4
Maxillary tray - should extend to where?
Correct Answer
1. The junction of the "hard & soft palate" or tuberosities
Question 5
The instrument/s used to contour the matrix band to the tooth is?
Correct Answer
Burnisher only
Page 1 of 315
,Question 6
Impression issues - if ropey saliva adhered to an impression, the dental auxillary
should do what?
Correct Answer
1. Rinse the impression with slurry water
Question 7
In addition to wedges, the "Matrix Band" may be secured with?
Correct Answer
Low fusing compound
Question 8
What does Correct occlusal height of a temporary crown do?
Correct Answer
Prevents extrusion
Question 9
Exothermic materials - what is considered this?
Correct Answer
Zinc Phosphate
Question 10
Care should be taken in polishing teeth of diabetics because?
Correct Answer
If tissues are lacerated or damaged, healing is very slow
Page 2 of 315
,Question 11
To qualify to the the RDA examination, one must meet any of the following criteria
Correct Answer
1. Graduate dental assisting program - accredited by the California Board of Dental
Examiners
2. Eighteen months - full-time work experience in a dental office
Question 12
Impression - should be removed from the patient's mouth how?
Correct Answer
Gently, teasing, back and forth motion
Question 13
Alginate mixing - rough or lumpy mix may be caused by what?
Correct Answer
1. Insufficient water
2. Excessive powder
3. Improper mixing technique
Question 14
On "Posterior Teeth" the matrix band is placed where?
Correct Answer
One to three millimeters (1-3) above the cusp and 1/2 to 1 mm below the gingival
Question 15
The narrowest part of the tooth is the?
Correct Answer
Cervical third
Page 3 of 315
, Question 16
Luting - cement is placed on the?
Correct Answer
1. Gold crown
2. Orthodontic band
Question 17
General Supervision
Correct Answer
Doctor/Dentist - is out of office, but has scheduled auxiliary to be at work
Question 18
Vaseline - may be added to a temporary cement mix to do what?
Correct Answer
Facilitate removal of the temporary
Question 19
A fulcrum is contraindicated on what?
Correct Answer
The vestibule
The lips
A pontic
Question 20
When used as a base, which cement requires "SEPARATION FROM THE PULP" by use
of a cavity varnish?
Correct Answer
Zinc Phosphate
Page 4 of 315
Answers Latest
Question 1
When a patient is injured by an auxiliary who is liable?
Correct Answer
1. Dentist
2. Employee
Question 2
Indirect pulp capping - the medication of choice is?
Correct Answer
Calcium Hydroxide
Question 3
Cavity varnish - primary function is to?
Correct Answer
Prevent microscopic leakage by sealing dentinal tubules
Question 4
Maxillary tray - should extend to where?
Correct Answer
1. The junction of the "hard & soft palate" or tuberosities
Question 5
The instrument/s used to contour the matrix band to the tooth is?
Correct Answer
Burnisher only
Page 1 of 315
,Question 6
Impression issues - if ropey saliva adhered to an impression, the dental auxillary
should do what?
Correct Answer
1. Rinse the impression with slurry water
Question 7
In addition to wedges, the "Matrix Band" may be secured with?
Correct Answer
Low fusing compound
Question 8
What does Correct occlusal height of a temporary crown do?
Correct Answer
Prevents extrusion
Question 9
Exothermic materials - what is considered this?
Correct Answer
Zinc Phosphate
Question 10
Care should be taken in polishing teeth of diabetics because?
Correct Answer
If tissues are lacerated or damaged, healing is very slow
Page 2 of 315
,Question 11
To qualify to the the RDA examination, one must meet any of the following criteria
Correct Answer
1. Graduate dental assisting program - accredited by the California Board of Dental
Examiners
2. Eighteen months - full-time work experience in a dental office
Question 12
Impression - should be removed from the patient's mouth how?
Correct Answer
Gently, teasing, back and forth motion
Question 13
Alginate mixing - rough or lumpy mix may be caused by what?
Correct Answer
1. Insufficient water
2. Excessive powder
3. Improper mixing technique
Question 14
On "Posterior Teeth" the matrix band is placed where?
Correct Answer
One to three millimeters (1-3) above the cusp and 1/2 to 1 mm below the gingival
Question 15
The narrowest part of the tooth is the?
Correct Answer
Cervical third
Page 3 of 315
, Question 16
Luting - cement is placed on the?
Correct Answer
1. Gold crown
2. Orthodontic band
Question 17
General Supervision
Correct Answer
Doctor/Dentist - is out of office, but has scheduled auxiliary to be at work
Question 18
Vaseline - may be added to a temporary cement mix to do what?
Correct Answer
Facilitate removal of the temporary
Question 19
A fulcrum is contraindicated on what?
Correct Answer
The vestibule
The lips
A pontic
Question 20
When used as a base, which cement requires "SEPARATION FROM THE PULP" by use
of a cavity varnish?
Correct Answer
Zinc Phosphate
Page 4 of 315
