A 9-yr-old child came to the the dental clinic with spacing in anterior teeth. The line of treatment is 1) Fixed appliance 2) Removable appliance 3) Inclined plane 4) No treatment, observation of patient
OrthodonticsAnswer: 4
To regain arch length in anterior segment by moving incisors labially 1) Cephalometric analysis have to be made before taking up treatment 2) Use tongue blade therapy 20 times/day 3) Use a "Z" spring with Hawley"s retainer 4) Use an anterior bite plane
OrthodonticsAnswer: 1
Patient ages 8 years with skeletal anterior open bite is treated with 1) Posterior bite plane 2) Frankel appliance with high pull headgear 3) Posterior osteotomy to reposition posterior segment 4) Box elastics with fixed appliance
OrthodonticsAnswer: 2
Anterior bite plane. True is 1) Helps in correction of deep bite 2) Helps in eruption of molars 3) Depresses lower incisors 4) All of the above
OrthodonticsAnswer: 4
It is no longer possible to apply the principles of interceptive orthodontics with the eruption of which tooth 1) Permanent first molar 2) Permanent second molar 3) Permanent canine 4) Permanent incisors
OrthodonticsAnswer: 2
The most damaging feature of class II div 2 and most consistent feature of class II div II is 1) Deep bite 2) Crowding of maxillary teeth 3) Class-II molar relation 4) Buccally placed canines
OrthodonticsAnswer: 1
The cranial vault increases rapidly postnatally. By the age of six what % of cranial growth is completed 1) 60 % 2) 80 % 3) 90 % 4) 100 %
OrthodonticsAnswer: 3
The time required for extrusion of a root by orthodontic treatment is 1) 1 week 2) 4 to 8 weeks 3) 2 to 4 weeks 4) 8 to 12 weeks
