Orthodontics Board Questions
1) The greatest disadvantage of the segmental arch space closure technique is:
a) It’s increased complexity
b) It may not be fail-safe
c) It needs frequent monitoring and observation
d) It has no rigid connection between the anterior and posterior segment which
make it difficult to maintain arch form and vertical relation
2) In Begg’s technique, extraction space is closed by:
a) Initially tipping the teeth together and then uprighting them.
b) Bodily movement of canine followed by retraction of incisors
c) Bodily enmass movement of canine and incisors together.
d) Initially tipping the canine alone followed by uprighting of incisors and uprighting
them.
3) A corrected anterior crossbite is best retained by:
a) Overcorrection (1-2mm)
b) Normal incisors relationship
c) Retention by the removable appliance by Hawley’s retainer
d) Fixed retainer
e) None of the above
4) The absence of pulp chambers is suggestive of:
a) Dentinogenesis imperfecta
b) Amelogenesis Imperfecta
c) Cleidocranial dysostosis
d) Fetal alcohol syndrome
e) None of the above
5) “K” swallow is a treatment modality to treat:
a) Mouth breathing
b) Open bite
c) Obstructive sleep apnea
d) Tongue thrust
6) The headgear should not be prescribed in the following situations:
a) When facial asymmetry is noticed
b) The mandibular plane angle is high
c) There is no chance for cooperation by the patient
d) Maxillary teeth need only slight resistance from forward movement
7) The focal film distance for lateral cephalogram is:
a) Four feet
b) Three feet
c) Five feet
d) Six feet
Dr. Yousef Nasrawi
1) The greatest disadvantage of the segmental arch space closure technique is:
a) It’s increased complexity
b) It may not be fail-safe
c) It needs frequent monitoring and observation
d) It has no rigid connection between the anterior and posterior segment which
make it difficult to maintain arch form and vertical relation
2) In Begg’s technique, extraction space is closed by:
a) Initially tipping the teeth together and then uprighting them.
b) Bodily movement of canine followed by retraction of incisors
c) Bodily enmass movement of canine and incisors together.
d) Initially tipping the canine alone followed by uprighting of incisors and uprighting
them.
3) A corrected anterior crossbite is best retained by:
a) Overcorrection (1-2mm)
b) Normal incisors relationship
c) Retention by the removable appliance by Hawley’s retainer
d) Fixed retainer
e) None of the above
4) The absence of pulp chambers is suggestive of:
a) Dentinogenesis imperfecta
b) Amelogenesis Imperfecta
c) Cleidocranial dysostosis
d) Fetal alcohol syndrome
e) None of the above
5) “K” swallow is a treatment modality to treat:
a) Mouth breathing
b) Open bite
c) Obstructive sleep apnea
d) Tongue thrust
6) The headgear should not be prescribed in the following situations:
a) When facial asymmetry is noticed
b) The mandibular plane angle is high
c) There is no chance for cooperation by the patient
d) Maxillary teeth need only slight resistance from forward movement
7) The focal film distance for lateral cephalogram is:
a) Four feet
b) Three feet
c) Five feet
d) Six feet
Dr. Yousef Nasrawi
