1. Overbite is defined as:Distobuccal cusp of maxillary 1st molar occludes with the central fossa of mandibular 1st molarThe horizontal overlap of mandibular over maxillary anterior teethThe vertical overlap of maxillary anterior over mandibular anterior teethThe horizontal overlap of the maxillary and mandibular anterior teethQuestion 1 of 20 2. In mandibular rotation what is the contribution of total matrix and intra matrix rotation:25% matrix; 75% intramatrix100% intramatrix; 0% matrix0% intramatrix; 100% matrix50% intramatrix; 50% matrixQuestion 2 of 20 3. A 6 year old patient has a larger than average diastema between the maxillary central incisors. The radiographic examination shows a mesiodens. In order to manage the diastema, you should extract the mesiodensas soon as possible.after its complete eruption.once the patient has reached the age of 12.only if it develops into a cystic lesionQuestion 3 of 20 4. Best method to sterilize orthodontic plier isAlcoholChemiclaveBoilingAutoclaveQuestion 4 of 20 5. Post-orthodontic circumferential supra crestal fibrotomy is indicated most for:Following correction of Intruded mandibular 2nd premolarPost retraction of maxillary incisorsMaxillary lateral incisor rotation correctionLabially positioned incisorQuestion 5 of 20 6. The total eruption path of a first permanent molar is about3 cm2 cm1.5 cm2.5 cmQuestion 6 of 20 7. Which analysis uses the measurement of lower incisors to calculate dimensions of posterior teeth:Nance analysisBolton's analysisHuckaba analysisMoyers analysisQuestion 7 of 20 8. Secondary or Intermediate alveolar bone grafting for a cleft palate patient is done:After first molar eruptionBefore maxillary lateral incisor eruptionBefore canine eruptionAfter canine eruptionQuestion 8 of 20 9. High pull head gear is used for all except:To intrude maxillary molarsTo protract maxillaTo restrain maxillary growthTo hold maxillary molarQuestion 9 of 20 10. Model diagnostic setup for planning clear aligners in 1945 was given by:TweedRicketsAngleKeslingQuestion 10 of 20 11. To prevent mesial drift of a permanent first molar, the ideal time to place a distal extension space maintainer isimmediately after extraction of the primary second molar.as soon as the extraction site of the primary second molar has completely healed.as soon as the tooth erupts through the gingival tissue.after the permanent second molar has erupted.Question 11 of 20 12. Incisal liability in the maxillary and mandibular arch is:4 mm maxilla, 6 mm mandible6 mm maxilla, 4 mm mandible7 mm maxilla, 5 mm mandible5 mm maxilla, 7 mm mandibleQuestion 12 of 20 13. Hardening heat treatment is commonly used forTMA wiresNickel titanium wiresStainless steel wireCobalt-chromium wiresQuestion 13 of 20 14. Prior to the correction of a one tooth anterior crossbite, the principle factor to consider is thedevelopmental age of the patient.adequacy of mesio-distal space.sequence of eruption of the permanent dentition.morphology of the anterior teeth.Question 14 of 20 15. An adult male with unrepaired complete bilateral cleft lip and palate will:Concave profileClass III molar relationConvex profileStraight profileQuestion 15 of 20 16. A patient With maxillary midline diastema which has been closed orthodontically requires what kind of retention:Begs retainer for 1 yearBegs retainer for 6 monthsFixed palatal retainerNo retentionQuestion 16 of 20 17. In apical root fracture of tooth, the orthodontic force should not be applied until6 months3 months12 months9 monthsQuestion 17 of 20 18. Superimposition in cephalometric studies is done from Registration point. This demonstrates best:Growth of structures farthest from that pointGrowth of structures nearest from that pointAll of the aboveGrowth of structures at that pointQuestion 18 of 20 19. Which of the following metals shows the property of twinningCobalt chromiumAll of the aboveStainless steelNickel titanium alloyQuestion 19 of 20 20. Teeth with root fracture cannot be moved orthodontically for:1 month6 months3 months1 yearQuestion 20 of 20 Loading...