1
RDA Review Practice Test Questions with Answers
(100% Correct Answers)
A non aerosol topical anesthetic may be applied by the: Answer: DA or
RDA
Two primary reasons for using topical anesthetic agents are: Answer:
relief of pain and anxiety
Topical anesthetic is applied in the muco/buccal fold over the apex area
of operation for _____ anesthesia Answer: infiltration
A mobile tooth is a: Answer: Sign
Cracking at the corner of the mouth is known as: Answer: cheilitis
The tab of tissue on the inside of the cheek just opposite the upper first
molar is: Answer: the opening to the parotid salivary gland
Removing tissue for examination under a microscope is called: Answer:
biopsy
Before administering N20 to the patient: Answer: he is instructed to take
several deep breaths
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,2
A patient's overjet is measured by: Answer: the horizontal distance the
maxillary teeth protrude beyond the mandible.
A cross bite is: Answer: none of the above
A Class I malocclusion is: Answer: The posterior teeth and mandible are in
a normal position but there are malpositioned anterior teeth.
A Class II malocclusion is: Answer: The posterior teeth and maxilla are in a
protruded position in relationship to the mandible.
A Class III malocclusion is: Answer: The posterior teeth and maxilla are in
a retruded position in relationship to the mandible.
A Class II elastic: Answer: attaches a the anterior of the maxillary
appliance and the posterior of the mandibular appliance.
Elastic orthodontic separators are placed: Answer: by a DA
The following are not used for separators: Answer: Tie wires
When placing a TP spring: Answer: first insert lingual side
When removing separators care must be taken: Answer: to avoid injuring
the interdental papillae
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, 3
A useful instrument for removing elastic separators is a : Answer: sickle
scaler
T-P springs are a type of: Answer: separator
How long do elastic separators need to be left in place? Answer: 3-5 days
An elastic separator is placed by: Answer: a period of more than 8 hours
Headgear should not be worn during: Answer: sports activities
When ligating with a wire tie, the tie wire should be: Answer: bent at a 90
degree angle
After twisting the wire ligature the "pigtail" should be cut to a length of
approximately: Answer: 3 mm
After the wire ligature has been cut the cut end ("pigtail") is bent: Answer:
gingivally
A removable retainer should: Answer: 1. should not impinge soft tissue
2. seat completely to the soft tissue
3. fit securely without dislodging
(1,2 and 3)
© 2025 All rights reserved
RDA Review Practice Test Questions with Answers
(100% Correct Answers)
A non aerosol topical anesthetic may be applied by the: Answer: DA or
RDA
Two primary reasons for using topical anesthetic agents are: Answer:
relief of pain and anxiety
Topical anesthetic is applied in the muco/buccal fold over the apex area
of operation for _____ anesthesia Answer: infiltration
A mobile tooth is a: Answer: Sign
Cracking at the corner of the mouth is known as: Answer: cheilitis
The tab of tissue on the inside of the cheek just opposite the upper first
molar is: Answer: the opening to the parotid salivary gland
Removing tissue for examination under a microscope is called: Answer:
biopsy
Before administering N20 to the patient: Answer: he is instructed to take
several deep breaths
© 2025 All rights reserved
,2
A patient's overjet is measured by: Answer: the horizontal distance the
maxillary teeth protrude beyond the mandible.
A cross bite is: Answer: none of the above
A Class I malocclusion is: Answer: The posterior teeth and mandible are in
a normal position but there are malpositioned anterior teeth.
A Class II malocclusion is: Answer: The posterior teeth and maxilla are in a
protruded position in relationship to the mandible.
A Class III malocclusion is: Answer: The posterior teeth and maxilla are in
a retruded position in relationship to the mandible.
A Class II elastic: Answer: attaches a the anterior of the maxillary
appliance and the posterior of the mandibular appliance.
Elastic orthodontic separators are placed: Answer: by a DA
The following are not used for separators: Answer: Tie wires
When placing a TP spring: Answer: first insert lingual side
When removing separators care must be taken: Answer: to avoid injuring
the interdental papillae
© 2025 All rights reserved
, 3
A useful instrument for removing elastic separators is a : Answer: sickle
scaler
T-P springs are a type of: Answer: separator
How long do elastic separators need to be left in place? Answer: 3-5 days
An elastic separator is placed by: Answer: a period of more than 8 hours
Headgear should not be worn during: Answer: sports activities
When ligating with a wire tie, the tie wire should be: Answer: bent at a 90
degree angle
After twisting the wire ligature the "pigtail" should be cut to a length of
approximately: Answer: 3 mm
After the wire ligature has been cut the cut end ("pigtail") is bent: Answer:
gingivally
A removable retainer should: Answer: 1. should not impinge soft tissue
2. seat completely to the soft tissue
3. fit securely without dislodging
(1,2 and 3)
© 2025 All rights reserved
