1. In a 17 year old male with a vertical growth pattern, deep anterior bite and crowding of dentition requires orthodontic treatment. In such a case, correction of deep bite while maintaining mandibular plane can be achieved by:Absolute intrusion of posteriorsAbsolute intrusion of anteriorsRelative intrusion of anteriorsRelative extrusion of posteriorsQuestion 1 of 20 2. Which of the following is the normal relationship of the primary molars in the deciduous dentition?None of the aboveDistal stepMesial stepFlush-terminal-planeQuestion 2 of 20 3. The first evidence of cartilage getting converted to bone in craniofacial skeleton occur duringFourth Postnatal weekEighth Prenatal weekEighth Postnatal weekFourth Prenatal weekQuestion 3 of 20 4. Which of the following orthodontic wire has no superelastic propertyConventional nickel-titanium wireChinese NiTi wireCopper NiTi wireJapanese NiTi wireQuestion 4 of 20 5. Which of these is rarely seen in primary dentition:End-on molar relationCrowdingProtrusive anterior maxillary teethSpacingQuestion 5 of 20 6. In an adult Class II division 1 malocclusion case, what should be done:Extraction of lower 2nd PMExtraction of upper 1st PMExtraction of upper 2nd PMExtraction of lower 1st PMQuestion 6 of 20 7. The ratio of skeletal: Dental expansion obtained finally after Rapid palatal expansion is1;13;12;14;1Question 7 of 20 8. Cephalometrics is useful for assessing all of the following relationships except:Soft palate to gingiva.Bone to boneTooth to boneTooth to toothQuestion 8 of 20 9. Interincisal angle is increased inClass I malocclusion with bimaxillary protrusionClass II division 1 malocclusionClass I type 2 malocclusionClass II division 2 malocclusionQuestion 9 of 20 10. Hyper active mentalis activity is seen inClass II div 2 malocclusionClass I malocclusionClass II div 1 malocclusionClass III malocclusionQuestion 10 of 20 11. Diagnostic aid used for measuring transverse discrepancy and vertical facial dimensionsOccipitomentalLateral cephOPGPA cephQuestion 11 of 20 12. Which is mixed dentition analysis:Rickets analysisPont's analysisTanaka Johnsons analysisBolton's analysisQuestion 12 of 20 13. Components of IOTN include:Esthetic and hard tissueDental and soft tissueDental and estheticsSoft tissue and hard tissueQuestion 13 of 20 14. In periodontal compromised tooth, which tooth movement is done carefullyRetroclinationProclinationIntrusionUprightingQuestion 14 of 20 15. Model diagnostic setup for planning clear aligners in 1945 was given by:TweedAngleRicketsKeslingQuestion 15 of 20 16. What is seen when a wire is bent below its elastic limit and is released:Decrease in stiffnessSpring backIncrease in stiffnessYield strengthQuestion 16 of 20 17. Maximum bends that can be given in which wire before fracture:?-titaniumStainless steelCo-Cr-NiNiTiQuestion 17 of 20 18. 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?More precise location of brackets possible in the laboratoryReduced chair-side timeControlled thickness of the resin between the tooth and the bracket interfaceLess technique sensitiveQuestion 18 of 20 19. Which malocclusion does not require retention after treatment?Class II correctionAnterior cross biteMaxillary constrictionEnlarged archesQuestion 19 of 20 20. Most common dental problem associated with cleft lip and palate is:Anterior deep biteAnterior open biteRotation of central incisorUnilateral or bilateral posterior cross biteQuestion 20 of 20 Loading...