1. Most common relationship of the primary molars in deciduous dentition:Mesial stepDistal stepFlush terminal planeAngle Class IQuestion 1 of 20 2. In EMG, activity of mentalis muscle was detected very high. The patient might have:Class-III malocclusionClass-I malocclusionClass-II division-2 malocclusionClass-II division-1 malocclusionQuestion 2 of 20 3. A patient, when in full intercuspation, shows a right side posterior crossbite and a lower midline that is deviated to the right. At initial contact there are bilateral posterior crossbites and coincident midlines. The most likely cause of this finding istwo ideal occlusions.severe temporomandibular dysfunction.true unilateral crossbite.occlusal interference and functional shift.Question 3 of 20 4. Adenoids lead to:Vertical descent of mandibleVertical ascent of maxillaVertical descent of maxillaVertical ascent of mandibleQuestion 4 of 20 5. Bed of orthodontic tooth movement isPeriodontiumAlveolar processGingivaOsteoblasts and osteoclastsQuestion 5 of 20 6. 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?Twin Block TherapyKloehn Extra Oral Head GearFR II ApplianceWait and Watch till 6yrQuestion 6 of 20 7. High pull head gear is used for all except:To restrain maxillary growthTo protract maxillaTo hold maxillary molarTo intrude maxillary molarsQuestion 7 of 20 8. Extrusive movements ideally would produce no areas of compression within PDL, but will produceOnly retractionOnly extractionOnly tensionOnly contusionQuestion 8 of 20 9. What is the right sequence of orthodontic treatment planning from diagnosis to result:Synthesis and diagnosis, treatment objectives, treatment planning, plan mechanics, treatmentSynthesis and diagnosis, plan mechanics, treatment objectives, treatment planning, treatmenTreatment objectives, treatment planning, Synthesis and diagnosis, plan mechanics, treatmentSynthesis and diagnosis, treatment planning, treatment objectives, plan mechanics, treatmentQuestion 9 of 20 10. A tooth undergoing orthodontic tooth movement, the tension side will show:Widened PDL spaceOverall narrowing of PDL space on both sidesNarrowed PDL spaceFuzziness of lamina duraQuestion 10 of 20 11. In a mouth breather, tonicity of upper lip isIncreasedDecreasedSlightly affectedNo changeQuestion 11 of 20 12. A Moment: Force ratio of 7 will cause:Controlled tippingTranslationUncontrolled tippingTorqueingQuestion 12 of 20 13. All of the following are advantages of the indirect method of bonding brackets to a tooth over the direct method EXCEPT one. Which one is the EXCEPTION?Controlled thickness of the resin between the tooth and the bracket interfaceLess technique sensitiveReduced chair-side timeMore precise location of brackets possible in the laboratoryQuestion 13 of 20 14. Habitual grinding of teeth in day time referred to asTraumatic biteOcclusal dysfunctionBruxism.BruxomaniaQuestion 14 of 20 15. The highest critical surface tension is for which of the orthodontic bracketsCeramic aluminaStainless steelPolycarbonateTitaniumQuestion 15 of 20 16. Which of the following orthodontic wire cannot be soldered:Stainless steel?-titaniumNiTiCobalt-chromiumQuestion 16 of 20 17. Orthodontic tooth movement in a patient with concussion, subluxation extrusion and simple crown/root fracture should be postponed by:1 year6 months15 days3 monthsQuestion 17 of 20 18. Post-orthodontic circumferential supra crestal fibrotomy is indicated most for:Post retraction of maxillary incisorsLabially positioned incisorMaxillary lateral incisor rotation correctionFollowing correction of Intruded mandibular 2nd premolarQuestion 18 of 20 19. Cold bend test is used to measureMalleabilityCompressive strengthTensile strengthDuctilityQuestion 19 of 20 20. Which malocclusion does not require retention after treatment?Maxillary constrictionClass II correctionEnlarged archesAnterior cross biteQuestion 20 of 20 Loading...
