ORTHODONTIC ASSISTANT PERMIT FULL ACTUAL STUDY |ALL QUESTIONS AND
ACCURATE ANSWERS
What is the primary dentition?
The 20 teeth of childhood that are replaced by the secondary teeth. Also referred to as
deciduous teeth.
What is the secondary dentition?
The 32 teeth of adulthood also called permanent dentition.
Under direct supervision, what duties can a dental assistant perform?
1) apply topical fluoride 2) take impressions for appliances 3) take face transfer and bite
registration 4) perform measurements for purposes of orthodontic treatment 5) restorative
or orthodontic materials with a curing light 6) examine orthodontic appliances 7) please
and remove orthodontic separators 8) Remove ligature ties and archwires 9) After
adjustment by the dentist, examine and seat, removable orthodontic appliances.
Under direct supervision, what duties can an OA perform?
1) prepare teeth for bonding select position and cure brackets after dentist approves 2)
remove brackets and attachments 3) size fit, and cement bands 4) remove bands/cement
with hand instrument 5) place and ligate archwires 6) remove cement with ultrasonic scaler
Under general supervision, what procedures can an OA/RDA perform?
,1) mouth mirror inspection of oral cavity to chart obvious lesions existing restorations and
missing teeth 2) remove cement with hand instrument 3) polish surfaces of teeth 4) use
auto carries detection devices for diagnosis by dentist.
In secondary dentition, which are the anterior teeth?
1) central incisors 2) lateral incisors 3) Cuspid (canines)
What is mixed dentition?
The condition where the oral cavity possesses both the primary and secondary teeth. Also
referred to as the transitional time, between the ages of 5 and 12.
Define crown
top of tooth seen in the oral cavity
Define cervical line
the line that divides the crown and root
Define Apex
tip of the root
Define cusp
, Pointed or rounded mound on the crown/chewing surface of the tooth
Define overbite
The vertical overlap of the maxillary teeth over the mandibular teeth. A normal condition.
Define overjet
The horizontal distance between the anteriors of the mandibular and maxillary teeth. An
abnormal condition.
Define mesial
Toward the Midline
Define distal
Away from the Midline
Define label
May also be called palatal. Surface of anterior teeth that face the lip.
Define lingual
Surface of tooth that faces the tongue or palate.
ACCURATE ANSWERS
What is the primary dentition?
The 20 teeth of childhood that are replaced by the secondary teeth. Also referred to as
deciduous teeth.
What is the secondary dentition?
The 32 teeth of adulthood also called permanent dentition.
Under direct supervision, what duties can a dental assistant perform?
1) apply topical fluoride 2) take impressions for appliances 3) take face transfer and bite
registration 4) perform measurements for purposes of orthodontic treatment 5) restorative
or orthodontic materials with a curing light 6) examine orthodontic appliances 7) please
and remove orthodontic separators 8) Remove ligature ties and archwires 9) After
adjustment by the dentist, examine and seat, removable orthodontic appliances.
Under direct supervision, what duties can an OA perform?
1) prepare teeth for bonding select position and cure brackets after dentist approves 2)
remove brackets and attachments 3) size fit, and cement bands 4) remove bands/cement
with hand instrument 5) place and ligate archwires 6) remove cement with ultrasonic scaler
Under general supervision, what procedures can an OA/RDA perform?
,1) mouth mirror inspection of oral cavity to chart obvious lesions existing restorations and
missing teeth 2) remove cement with hand instrument 3) polish surfaces of teeth 4) use
auto carries detection devices for diagnosis by dentist.
In secondary dentition, which are the anterior teeth?
1) central incisors 2) lateral incisors 3) Cuspid (canines)
What is mixed dentition?
The condition where the oral cavity possesses both the primary and secondary teeth. Also
referred to as the transitional time, between the ages of 5 and 12.
Define crown
top of tooth seen in the oral cavity
Define cervical line
the line that divides the crown and root
Define Apex
tip of the root
Define cusp
, Pointed or rounded mound on the crown/chewing surface of the tooth
Define overbite
The vertical overlap of the maxillary teeth over the mandibular teeth. A normal condition.
Define overjet
The horizontal distance between the anteriors of the mandibular and maxillary teeth. An
abnormal condition.
Define mesial
Toward the Midline
Define distal
Away from the Midline
Define label
May also be called palatal. Surface of anterior teeth that face the lip.
Define lingual
Surface of tooth that faces the tongue or palate.
