1. Thumb sucking in child leads to change in facial profile (dental and skeletal changes), if the child performs the habit at least for how much time: Not related to duration 6 hrs daily 4 hrs daily 2 hrs daily 2. In a mouth breather, tonicity of upper lip is Increased Decreased No change Slightly affected 3. Best time to modify growth is: Permanent dentition Late mixed dentition Primary dentition Early mixed dentition 4. In a tooth with alveolar bone resorption what will be the change in center of resistance? It will shift coronally It will move outside the tooth No change It will shift apically 5. According to Simon classification, movement of teeth towards Frankfort plane is called: Protraction Abstraction Attraction Retraction 6. Diagnostic aid used for measuring transverse discrepancy and vertical facial dimensions Lateral ceph PA ceph Occipitomental OPG 7. Inability to produce bilabial sounds properly like /b/ and /p/ along with lisp like sounds is seen in which malocclusion: Class III with competent lips Class II division 1 with incompetent lips Class I type 3 Class I type 4 8. A tongue thrust is most often found in a child with a bimaxillary protrusion. an anterior open-bite. a deep overbite. an Angle Class II, division 2 malocclusion. 9. To produce pure translatory motion in a tooth, what type of force is required Moment of force Intermittent force Continuous force Interrupted force 10. Maximum Lip thickness is seen at what age in males: 21 years 10 years 18 years 16 years 11. Everted prominent lips with small mandible indicates: Upper increased facial height Upper decreased facial height Lower decreased facial height Lower increased facial height 12. The most common cause of malocclusion with a Class I molar relationship is improper eruption of permanent first molars. crossbite in the posterior segments. tooth size and jaw size discrepancy. a thumbsucking habit. 13. The highest critical surface tension is for which of the orthodontic brackets Titanium Stainless steel Ceramic alumina Polycarbonate 14. Reproximation procedure in orthodontics denotes: Method of gaining space Method of losing space Retraction of incisors Space maintenance 15. Pericision is used for retention of corrected: Rotation Extrusion Intrusion Impaction 16. Which is mixed dentition analysis: Pont’s analysis Tanaka Johnsons analysis Rickets analysis Bolton’s analysis 17. Dontrix gauze is used to: Measure wire deformation Measure strength of wire Measure wire distortion Measure force 18. Which cephalometric angle does not change with treatment SNA ANB Saddle angle SNB 19. A single tooth anterior crossbite found in a 9 year old should have 2 arch orthodontic treatment. self-correct. be treated with a removable appliance. be treated in the complete permanent dentition. 20. According to the NORMS of the orthodontic study models, the total height of maxillary n mandibular model should be close to? 60 mm 70 mm 90 mm 55 mm Loading … Question 1 of 20
