1. When comparing stainless steel versus nickel titanium in orthodontic wires, stainless steel has a __________ modulus of elasticity. and __________ resilience.higher, lowerlower, lowerlower, higherhigher, higherQuestion 1 of 20 2. The displacement of a tooth from the socket in the direction of eruption is referred to as:IntrusionTranslationExtrusionTippingQuestion 2 of 20 3. According to American Board of Orthodontics recommendation for colour coding of sequential tracing, end treatment ceph tracing is done in:BlueGreenBlackRedQuestion 3 of 20 4. What is seen when a wire is bent below its elastic limit and is released:Increase in stiffnessSpring backDecrease in stiffnessYield strengthQuestion 4 of 20 5. From mixed dentition to permanent dentition, the combined arch length in both the arches:Decreases by 2 mmDecreases by 4 mmDecreases by 6 mmIncreases by 2 mmQuestion 5 of 20 6. All of the following are orthodontic bracket materials exceptCeramicGoldPolycarbonatePolymethyl methacrylateQuestion 6 of 20 7. Pitch of the hyrax screw is?0.5 mm0.8 mm0.25 mm1.2 mmQuestion 7 of 20 8. Andrew's 5th key of occlusion isRotation absentCurve of speeBolton's rationTight contactsQuestion 8 of 20 9. Thumb sucking is normal upto what age:5 yrs2 yrs1 yr4 yrsQuestion 9 of 20 10. The most likely reason for extracting four first premolars in orthodontics is because ofan excessive overbite.a tooth size/arch size discrepancy.retrusive maxillary incisors.posterior crossbite.Question 10 of 20 11. The initial sign of sexual maturity in boys is usuallyChange in voiceDevelopment of Adam's appleFat spurtAppearance of facial hairQuestion 11 of 20 12. For bite opening in orthodontics, which of the following is done:Extrusion of anterior and intrusion of posterior teethRetraction of anterior teethIntrusion of anterior and extrusion of posterior teethMesialization of posterior teethQuestion 12 of 20 13. Which is the most important factor in habitsType of habitFrequencyAgeIntensityQuestion 13 of 20 14. Use of 2nd order bend in edgewise appliance is to:Align roots labiolinguallyAlign roots mesiodistallyAltered as per tooth thicknessTorque the.anterior as per requirementQuestion 14 of 20 15. Minimum anchorage is defined as a case where:No movement of anchorage unitAnchorage unit occupies 2/3rd extraction spaceAnchorage unit occupies 1/3rd of extraction spaceFixed anchorageQuestion 15 of 20 16. In which direction do the permanent teeth move during eruption?Mesially and occlusallyBuccally and MesiallyOcclusally and buccallyOcclusally and linguallyQuestion 16 of 20 17. Which of the following ortho wire has least modulus of elasticityBeta titaniumCobalt chromiumStainless steelNitiQuestion 17 of 20 18. The ratio of skeletal: Dental expansion obtained finally after Rapid palatal expansion is1;13;12;14;1Question 18 of 20 19. What is the most reliable indicator with respect to the timing of treatment for growth modification?Skeletal age.Chronologic age.Dental age.Tanner weight chartQuestion 19 of 20 20. The most significant factor in determining the prognosis of anterior crossbite correction is thedepth of the overbite.shape of the tooth involved.age of patient.space available mesiodistally.Question 20 of 20 Loading...