1. Pitch of the hyrax screw is?0.25 mm0.8 mm1.2 mm0.5 mmQuestion 1 of 20 2. Malocclusion caused by thumb sucking:Convex profileConcave profileNarrow mandible archDeep biteQuestion 2 of 20 3. Everted prominent lips with small mandible indicates:Upper increased facial heightLower decreased facial heightLower increased facial heightUpper decreased facial heightQuestion 3 of 20 4. During Orthodontic Bonding, etching removes how much enamel20-40 ?m21-30 ?m10-20 ?m3-9 ?mQuestion 4 of 20 5. Snort test is used to evaluate:Nasal air flow in cleft palateOral seal in cleft lip patientSpeech in cleft uvulaVelopharyngeal incompetence in cleft palate patientsQuestion 5 of 20 6. In Downs analysis, an increase in Y axis is suggestive of:Horizontal growth patternSkeletal dysplasiaAverage growth patternVertical growth patternQuestion 6 of 20 7. A single tooth anterior crossbite found in a 9 year old shouldhave 2 arch orthodontic treatment.self-correct.be treated in the complete permanent dentition.be treated with a removable appliance.Question 7 of 20 8. What is the right sequence of orthodontic treatment planning from diagnosis to result:Synthesis and diagnosis, plan mechanics, treatment objectives, treatment planning, treatmenSynthesis and diagnosis, treatment objectives, treatment planning, plan mechanics, treatmentTreatment objectives, treatment planning, Synthesis and diagnosis, plan mechanics, treatmentSynthesis and diagnosis, treatment planning, treatment objectives, plan mechanics, treatmentQuestion 8 of 20 9. All of the following are orthodontic bracket materials exceptPolycarbonateGoldCeramicPolymethyl methacrylateQuestion 9 of 20 10. W arch is used for treatment of:Open bitePosterior cross biteAnterior cross biteDeep biteQuestion 10 of 20 11. Which of the following metals shows the property of twinningAll of the aboveNickel titanium alloyCobalt chromiumStainless steelQuestion 11 of 20 12. Appliance used for rapid maxillary expansion:W- archQuad helixFace maskHyrax screwQuestion 12 of 20 13. An 8 year old patient with all primary molars still present exhibits a cusp-to-cusp relationship of permanent maxillary and mandibular first molars and good alignment of the lower incisors. The management of this patient should be torefer for orthodontic consultation.use a cervical headgear to reposition maxillary molars.place patient on appropriate recall schedule.disk the distal surfaces of primary mandibular second molars.Question 13 of 20 14. Which is the first titanium alloy introduced into contemporary orthodonticsBeta titaniumAlpha titaniumNiTiAll came to orthodontic practice same timeQuestion 14 of 20 15. 10 year old cleft boy with h/o cleft surgery, lip repair at 3 months and palate at 1 year reports for treatment. On examination maxillary arch was constricted and cleft at the alveolus of canine and canine was unerupted. What will you do:Arch expansion and bone graftSurgical extraction canineBone graftingArch expansionQuestion 15 of 20 16. Tooth loss that causes the patient to bite in an abnormal relation of maxilla to mandible, in order to obtain better function during mastication is termedDramatic biteConvenience biteSquashed biteTemporary biteQuestion 16 of 20 17. Which of the following is NOT a transient self-correcting malocclusion?Spaced primary dentitionDeep overbite in primary dentitionFlush terminal planes in primary dentitionAnterior crossbite in primary dentitionQuestion 17 of 20 18. The two main conditions complicating the correction of a single tooth anterior crossbite arelack of spacing and decreased overbite.a decreased overbite and a large labial frenum.lack of spacing and increased overbite.an increased overbite and a large labial frenumQuestion 18 of 20 19. Which of the following model analysis would be useful in planning extractions tor a 14 year old boy with severe Class II division 1 malocclusionFonts analysisPeck & Peck analysisAshley Howe analysisBolton's analysisQuestion 19 of 20 20. Teeth suffered from concussion, fracture of crown or root etc but not affecting pulp. Orthodontic force should be applied after15 days2 months1month3 monthsQuestion 20 of 20 Loading...
