1. In mandibular rotation what is the contribution of total matrix and intra matrix rotation:100% intramatrix; 0% matrix0% intramatrix; 100% matrix50% intramatrix; 50% matrix25% matrix; 75% intramatrixQuestion 1 of 20 2. A child with 5year 4 months of age presents with narrow maxilla, normal SNA, reduced SNB and distal step relationship of deciduous molar, treatment of choice is?Kloehn Extra Oral Head GearWait and Watch till 6yrTwin Block TherapyFR II ApplianceQuestion 2 of 20 3. Which is the most stable and the most often used plane for the superimposition of lateral cephalogram for studying the growth of a child?Frankfort planeOcclusal planeS-N planeMandibular planeQuestion 3 of 20 4. Force applied by Jack Screw during RME is:2-5 pounds25-30 pounds5-10 pounds10-20 poundsQuestion 4 of 20 5. Serial extraction is indicated in:Class I malocclusionClass III malocclusionOpen bite malocclusionClass II malocclusionQuestion 5 of 20 6. A contraindication for serial extraction isSevere crowdingMixed dentition stage of dental developmentDeep biteClass I skeletal patternQuestion 6 of 20 7. The permanent mandibular canines erupt in what direction relative to the primary mandibular canines?FaciallyDistallyLinguallyMesiallyQuestion 7 of 20 8. Which of the following ortho wire has least modulus of elasticityCobalt chromiumStainless steelBeta titaniumNitiQuestion 8 of 20 9. A steep mandibular plane angle correlates with a:Short anterior facial height and anterior deep bite malocclusionShort anterior facial height dimensions and anterior open bite malocclusionLong anterior facial height dimensions and anterior open bite malocclusionLong anterior facial height and anterior deep bite malocclusionQuestion 9 of 20 10. Rate of activation with slow expansion is1 mm for a month1 mm for 3 days1 mm per week1 mm per dayQuestion 10 of 20 11. The highest critical surface tension is for which of the orthodontic bracketsStainless steelCeramic aluminaPolycarbonateTitaniumQuestion 11 of 20 12. Serial extraction procedures involve:Orderly sequential removal of selected primary teeth onlyOrderly removal of selected primary and permanent teeth in a predetermined sequenceOrderly and sequential removal of selected permanent teeth onlyOrderly removal of selected primary and permanent teeth in a single sittingQuestion 12 of 20 13. Thumb sucking is normal upto what age:4 yrs2 yrs5 yrs1 yrQuestion 13 of 20 14. Which of the following is correct:Genetics has equal influence on all types of jaw dysplasiasAnteroposterior jaw dysplasias are more genetically determined than other dysplasiasTransverse jaw dysplasias are more genetically determined than other dysplasiasVertical jaw dysplasias are more genetically determined than other dysplasiasQuestion 14 of 20 15. Which of these is not an absolute indication to mount orthodontic study models on articulator:Class II case with severe overjet of 14 mmTo record the excursive movements of mandibleSurgical planningTo see and correct Cr-Co discrepancyQuestion 15 of 20 16. Generalized Anterior crossbite in the primary dentition indicates:A developing Class II malocclusionA normal maxillo-mandibular relationA dental malrelationA developing Class III malocclusionQuestion 16 of 20 17. Catalans appliance is used for:Correction of anterior crossbiteOpen bite correctionCorrection of posterior deep bite.Correction of deep biteQuestion 17 of 20 18. Branch of orthodontics concerned with management of teeth in mixed dentition period is called:Corrective orthodonticsInterceptive orthodonticsSurgical orthodonticsPreventive orthodonticsQuestion 18 of 20 19. Tooth loss that causes the patient to bite in an abnormal relation of maxilla to mandible, in order to obtain better function during mastication is termedTemporary biteDramatic biteSquashed biteConvenience biteQuestion 19 of 20 20. Best method to sterilize orthodontic plier isChemiclaveAlcoholAutoclaveBoilingQuestion 20 of 20 Loading...
