1. Which of the following muscle fibers are entrapped in case of thick maxillary labial frenum? Buccinator Platysma Nasoalveolar muscles Orbicularis oris 2. An Angle Class II, division 1 malocclusion can be differentiated from an Angle Class II, division 2 malocclusion based upon the molar relationship. severity of the Angle Class II malocclusion. inclination of maxillary incisors. amount of overbite. 3. Major site of growth of the mandible: Coronoid Body Condyle Ramus 4. Plane of reference used in transverse direction in WITS analysis: Palatal plane Sella-nasion plane Frankfurt horizontal plane Functional occlusal plane 5. All of the following assumptions are considered true when doing space analysis for calculating space discrepancy except: Arch dimensions remain stable Prediction tables are most valid for all populations All permanent teeth will develop normally Correlation in size of mandibular incisors and succedaneous teeth 6. There is a difference between girls and boys with respect to the age at which the growth velocity reaches its peak. Girls are two years ahead of boys Boys are six months ahead of girls. Girls are one year ahead of boys. Girls are six months ahead of boys. 7. One of the greatest advantages of using extra-oral anchorage is that: It permits the posterior movement of teeth in one arch without adversely disturbing the opposite arch. It has a direct reciprocal action on the opposing arch. More force can be applied. It can be used for all types of malocclusion. 8. Facial index of 85.6% means: Mesoprosopic face Hypereuryprosopic face Euryprosopic face Leptoprosopic face 9. Transverse cant of occlusal plane is seen in frontal plane examination. It occurs due to: Alteration and abstraction of jaw Alteration in roll of dentition Alteration in pitch of dentition Change in yaw of dentition 10. Apertognathia means: Deep bite Increased overjet Open bite Reversed overjet 11. Appropriate forces for orthodontic tooth movement are intermittent and heavy. continuous and light. intermittent and light. continuous and heavy. 12. In true deep bite freeway space is Completely Obliterated Remains Same Increased Decreased 13. Which of the following malocclusions is most appropriately corrected immediately upon diagnosis? Angle Class II division 1. Angle Class II division 2. Midline diastema. Cross-bite with a lateral functional shift. 14. Angle’s classification of occlusion is based on antero-posterior relationship of maxillary and mandibular first permanent molars. vertical relationships in the lower face. a full complement of teeth. antero-posterior skeletal relationship of maxilla to mandible. 15. The most likely reason for extracting four first premolars in orthodontics is because of posterior crossbite. retrusive maxillary incisors. a tooth size/arch size discrepancy. an excessive overbite. 16. The angle SNA can be used to evaluate the mandibular angle. overbite. maxillary protrusion. upper incisor inclination. 17. an Angle Class I occlusion, the mesiobuccal cusp of the maxillary first molar occludes with mesiobuccal cusp of the mandibular first molar. mesiobuccal groove of the mandibular first molar. central fossa of the mandibular first molar. mesial marginal ridge of the mandibular first molar. 18. For planning treatment in a patient with facial asymmetry requiring orthognathic surgery, which of the following is required: Grummons analysis Model analysis OPG CBCT 19. Everted prominent lips with small mandible indicates: Lower decreased facial height Upper decreased facial height Upper increased facial height Lower increased facial height 20. When permanent maxillary lateral incisors are congenitally missing, the permanent canine may often erupt: Between the two CIs Distal to the deciduous canine Mesial to the deciduous canine May be congenitally missing Loading … Question 1 of 20
