1. A strong buttress of bone extending from the zygoma to the alveolar process in the region of the maxillary first molar is calledKey ridgeMolar eminenceCanine eminenceAlveolar eminenceQuestion 1 of 20 2. Normal facial index is:<75%75-80%1>80%Question 2 of 20 3. Vital staining was introduced byJohn HunterWolfPetrovicEnlowQuestion 3 of 20 4. The repair of cleft patate is primarily done for:Correction of estheticsInduce growth of maxillaInduce growth of mandibleCorrection of speechQuestion 4 of 20 5. Outer circle in envelope of discrepancy denotes:Both Orthodontic & Orthognathic surgerySurgical orthognathic treatment onlyBoth Orthodontic & Orthopaedic treatmentOnly orthodontic treatmentQuestion 5 of 20 6. Which of the following is not a function of labial bowAnchorageRetentionTooth movementAttachment of auxiliaryQuestion 6 of 20 7. Bonded retainers are popular in which area of dentitionLower posteriorsUpper anteriorsLower anteriorsUpper posteriorsQuestion 7 of 20 8. A contraindication for serial extraction isClass I skeletal patternSevere crowdingDeep biteMixed dentition stage of dental developmentQuestion 8 of 20 9. Leeway space of Nance isSpace difference between permanent molars and deciduous molarsSpace difference between permanent canines and premolars and deciduous canine and molarsSpace difference between maxillary premolars and mandibular premolarsSpace differencc between permanent premolars and deciduous molarsQuestion 9 of 20 10. Most common removable retainer used in orthodontics:Frankel regulatorFunctional retainerBegg's retainerHawley applianceQuestion 10 of 20 11. To standardize the magnification during recording of a lateral cephalogram for a child, the position of the sensor/film should beConsider head radius as 6 inches and add to 60 inches between ilm and source of radiationConsider head radius as 9 inches and add to 60 inches between film and source of radiationDistance between sensor and source should be 60 inchesDistance between the sensor and source of radiation should be kept at 70 inchesQuestion 11 of 20 12. A graphical form, which compares different wire material and sizes is knows asStress-strain curveNormogramIsogramPhase diagramQuestion 12 of 20 13. Ideal orthodontic tooth movement involvesfrontal resorption.undermining resorption.large forces.subcrestal incisions.Question 13 of 20 14. Facial plane is measured from nasion to:MentonPogonionGonionBasionQuestion 14 of 20 15. The point which can be altered by orthodontic tooth movement:Point AANSGonionNasionQuestion 15 of 20 16. High pull head gear is used for all except:To hold maxillary molarTo restrain maxillary growthTo intrude maxillary molarsTo protract maxillaQuestion 16 of 20 17. Which of the following orthodontic wire cannot be soldered:NiTiCobalt-chromiumStainless steel?-titaniumQuestion 17 of 20 18. The most likely reason for extracting four first premolars in orthodontics is because ofan excessive overbite.a tooth size/arch size discrepancy.posterior crossbite.retrusive maxillary incisors.Question 18 of 20 19. Inability to produce bilabial sounds properly like /b/ and /p/ along with lisp like sounds is seen in which malocclusion:Class I type 3Class II division 1 with incompetent lipsClass I type 4Class III with competent lipsQuestion 19 of 20 20. Teeth suffered from concussion, fracture of crown or root etc but not affecting pulp. Orthodontic force should be applied after2 months15 days1month3 monthsQuestion 20 of 20 Loading...