Orthodontic Assistant Practice Exam With 100%
correct answers 2025
Orthodontics is the dental specialty that deals with - CORRECT ANSWER - the growth
and development of the jaws and face
The condition in which the mandible is located ahead of the maxilla is called -
CORRECT ANSWER - prognathism
The best way to motivate adolescents toward good oral hygiene habits is by -
CORRECT ANSWER - relating to social acceptance and appearance
Removal of bands may be accomplished with - CORRECT ANSWER - anterior band
slitting pliers
A headgear appliance is worn - CORRECT ANSWER - as the orthodontist prescribes
A positioner is worn - CORRECT ANSWER - after the removal of fixed appliances
In placing TP springs, an important consideration is - CORRECT ANSWER - to place
them from the lingual surface
The instrument of choice in ligating an archwire is a - CORRECT ANSWER - ligature-
tying pliers
Direct bracket bonding is advantage because the procedure - CORRECT ANSWER -
allows the dentist less clinical chair time
The attachment either welded or soldered to the bands that secure the archwire is the -
CORRECT ANSWER - bracket
Brass separators are removed by - CORRECT ANSWER - cutting opposite the pigtail
with ligature cutters
What instrument is used to place elastic separators? - CORRECT ANSWER - Elastic
separating pliers
The patient should be instructed to clean his or her retainer - CORRECT ANSWER -
after each meal
, Cephalometry is - CORRECT ANSWER - taking measurements of the skull
Cephalometric tracings are made over - CORRECT ANSWER - extraoral radiographs
The cephalometric headplate taken most often is the - CORRECT ANSWER - lateral
skull headplate
An open bite refers to a condition wherein - CORRECT ANSWER - the anterior teeth do
not contact
Overjet is the - CORRECT ANSWER - horizontal distance between maxillary and
mandibular teeth
A type of measuring device commonly used to take intraoral measurments is a (an) -
CORRECT ANSWER - flexible millimeter ruler
When seating and sizing bands using a band pusher type of instrument, it is necessary
to maintain control by - CORRECT ANSWER - establishing a stable fulcrum before
applying pressure
Class III malocclusion is - CORRECT ANSWER - a protruded position of the mandible
in relation to the maxilla
Vertical overbite refers to the - CORRECT ANSWER - vertical overlap of the incisal
edges of maxillary and mandibular anterior teeth
Class II maloclussion is - CORRECT ANSWER - retruded position of the mandible in
relation to the maxilla
The head-stabilizing device used in cephalometrics is called a (an) - CORRECT
ANSWER - cephalostat
During cementation of bands, the cement is placed - CORRECT ANSWER - on all
surfaces within the band
The attachment of anterior plastic brackets directly to teeth can be accomplished by -
CORRECT ANSWER - acid etch bonding
correct answers 2025
Orthodontics is the dental specialty that deals with - CORRECT ANSWER - the growth
and development of the jaws and face
The condition in which the mandible is located ahead of the maxilla is called -
CORRECT ANSWER - prognathism
The best way to motivate adolescents toward good oral hygiene habits is by -
CORRECT ANSWER - relating to social acceptance and appearance
Removal of bands may be accomplished with - CORRECT ANSWER - anterior band
slitting pliers
A headgear appliance is worn - CORRECT ANSWER - as the orthodontist prescribes
A positioner is worn - CORRECT ANSWER - after the removal of fixed appliances
In placing TP springs, an important consideration is - CORRECT ANSWER - to place
them from the lingual surface
The instrument of choice in ligating an archwire is a - CORRECT ANSWER - ligature-
tying pliers
Direct bracket bonding is advantage because the procedure - CORRECT ANSWER -
allows the dentist less clinical chair time
The attachment either welded or soldered to the bands that secure the archwire is the -
CORRECT ANSWER - bracket
Brass separators are removed by - CORRECT ANSWER - cutting opposite the pigtail
with ligature cutters
What instrument is used to place elastic separators? - CORRECT ANSWER - Elastic
separating pliers
The patient should be instructed to clean his or her retainer - CORRECT ANSWER -
after each meal
, Cephalometry is - CORRECT ANSWER - taking measurements of the skull
Cephalometric tracings are made over - CORRECT ANSWER - extraoral radiographs
The cephalometric headplate taken most often is the - CORRECT ANSWER - lateral
skull headplate
An open bite refers to a condition wherein - CORRECT ANSWER - the anterior teeth do
not contact
Overjet is the - CORRECT ANSWER - horizontal distance between maxillary and
mandibular teeth
A type of measuring device commonly used to take intraoral measurments is a (an) -
CORRECT ANSWER - flexible millimeter ruler
When seating and sizing bands using a band pusher type of instrument, it is necessary
to maintain control by - CORRECT ANSWER - establishing a stable fulcrum before
applying pressure
Class III malocclusion is - CORRECT ANSWER - a protruded position of the mandible
in relation to the maxilla
Vertical overbite refers to the - CORRECT ANSWER - vertical overlap of the incisal
edges of maxillary and mandibular anterior teeth
Class II maloclussion is - CORRECT ANSWER - retruded position of the mandible in
relation to the maxilla
The head-stabilizing device used in cephalometrics is called a (an) - CORRECT
ANSWER - cephalostat
During cementation of bands, the cement is placed - CORRECT ANSWER - on all
surfaces within the band
The attachment of anterior plastic brackets directly to teeth can be accomplished by -
CORRECT ANSWER - acid etch bonding
