1. Progressive malocclusion is: Class II A+C Class I Class III 2. Ideal orthodontic tooth movement involves undermining resorption. large forces. frontal resorption. subcrestal incisions. 3. Which of the following ortho wire has least modulus of elasticity Niti Cobalt chromium Stainless steel Beta titanium 4. What is the right sequence of orthodontic treatment planning from diagnosis to result: Synthesis and diagnosis, plan mechanics, treatment objectives, treatment planning, treatmen Treatment objectives, treatment planning, Synthesis and diagnosis, plan mechanics, treatment Synthesis and diagnosis, treatment planning, treatment objectives, plan mechanics, treatment Synthesis and diagnosis, treatment objectives, treatment planning, plan mechanics, treatment 5. On Ricketts esthetic plane, the lower lip Is I mm anterior to the plane Is 1 mm posterior to the plane Is 2 mm posterior to the plane Rests on the plane 6. Couple in orthodontics means: Single force acting on the same object Single force acting on 2 objects at the same time 2 forces equal and opposite in direction acting on the same object 2 unequal forces acting on the same object opposite in direction 7. Appearance of ulnar sesamoid bones in hand occurs: At the prepubertal spurt Birth At the end of pubertal spurt At onset of pubertal growth spurt 8. Which cephalometric angle does not change with treatment SNA ANB SNB Saddle angle 9. Which of the following is correct: Genetics has equal influence on all types of jaw dysplasias Vertical jaw dysplasias are more genetically determined than other dysplasias Anteroposterior jaw dysplasias are more genetically determined than other dysplasias Transverse jaw dysplasias are more genetically determined than other dysplasias 10. During intrusion, the center of rotation lies: At CEJ At infinity Inside the tooth at 1/3rd distance from apex Outside the tooth 11. In the mixed dentition, an end-to-end first permanent molar relationship is indicative of normally developing occlusion. Angle Class III malocclusion. Angle Class II malocclusion. ideal molar occlusion. 12. Hand wrist radiograph in orthodontics are used to accurately determine: Dental age Both A and B Chronological age Skeletal maturity 13. Branch of orthodontics concerned with management of teeth in mixed dentition period is called: Preventive orthodontics Surgical orthodontics Corrective orthodontics Interceptive orthodontics 14. The mechanism of adjustment to maintain the shape and proportions of bone throughout its growth period is called area relocation. translatory growth. cortical drift. remodeling. 15. Plane of reference used in transverse direction in WITS analysis: Palatal plane Frankfurt horizontal plane Sella-nasion plane Functional occlusal plane 16. The best space maintainer to prevent the lingual collapse that often occurs following the early loss of a mandibular primary canine is a band and loop space maintainer. lingual arch. distal shoe space maintainer. Nance expansion arch. 17. Interincisal angle is increased in Class I type 2 malocclusion Class II division 1 malocclusion Class II division 2 malocclusion Class I malocclusion with bimaxillary protrusion 18. Major site of growth of the mandible: Coronoid Condyle Body Ramus 19. Tooth most likely to be displaced in case of mandibular arch crowding is: 1st molar 1st premolar 2nd molar 2nd premolar 20. If the centre of rotation is present at the centre of bracket slot orthodontic movement that occurs is Torquing Controlled tipping Translation Uncontrolled tipping Loading … Question 1 of 20
