1. Which cephalometric angle does not change with treatment SNB ANB SNA Saddle angle 2. Ratio of Upper Anterior Facial Height to Lower Anterior Facial Height Is 60;40 45;55 55;45 0;60 3. Ulnar sesamoid bone calcification starts in Prepubertal growth spurt 3 months after birth Birth Puberty 4. The most likely reason for extracting four first premolars in orthodontics is because of an excessive overbite. retrusive maxillary incisors. a tooth size/arch size discrepancy. posterior crossbite. 5. Serial extraction procedures involve: Orderly removal of selected primary and permanent teeth in a predetermined sequence Orderly sequential removal of selected primary teeth only Orderly and sequential removal of selected permanent teeth only Orderly removal of selected primary and permanent teeth in a single sitting 6. During intrusion, the center of rotation lies: Outside the tooth At CEJ At infinity Inside the tooth at 1/3rd distance from apex 7. Class II malocclusion usually presents a _________________ facial profile: Prognathic Retrognathic Complex Orthognathic 8. The point which can be altered by orthodontic tooth movement: Nasion Gonion ANS Point A 9. 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 mesiodens only if it develops into a cystic lesion as soon as possible. once the patient has reached the age of 12. after its complete eruption. 10. Dontrix gauze is used to: Measure force Measure strength of wire Measure wire distortion Measure wire deformation 11. Couple in orthodontics means: Single force acting on the same object 2 unequal forces acting on the same object opposite in direction Single force acting on 2 objects at the same time 2 forces equal and opposite in direction acting on the same object 12. Areas of isolated gingival recession are most frequently seen on teeth that are labially prominent in the arch. ankylosed. moderately mobile. nonvital. 13. In an infant, the gum pad is separated from palate by: Transverse groove Gingival groove Lateral sulcus Dental groove 14. Maxillary 1st molar cusp used in Angle classification Mesiolingual Mesiobuccal Distolingual Distobuccal 15. Overbite is defined as: The horizontal overlap of mandibular over maxillary anterior teeth Distobuccal cusp of maxillary 1st molar occludes with the central fossa of mandibular 1st molar The horizontal overlap of the maxillary and mandibular anterior teeth The vertical overlap of maxillary anterior over mandibular anterior teeth 16. Which is mixed dentition analysis: Pont’s analysis Rickets analysis Tanaka Johnsons analysis Bolton’s analysis 17. The best space maintainer to prevent the lingual collapse that often occurs following the early loss of a mandibular primary canine is a band and loop space maintainer. lingual arch. distal shoe space maintainer. Nance expansion arch. 18. Plane of reference used in transverse direction in WITS analysis: Sella-nasion plane Palatal plane Frankfurt horizontal plane Functional occlusal plane 19. Tanaka Johnson analysis uses width of which teeth to estimate the width of maxillary canine and premolars: Maxillary molars Mandibular molars Maxillary incisors Mandibular incisors 20. Moyers D type CLASS II malocclusion is Orthognathic Maxilla / Retrognathic Mandible Retrognathic Maxilla / Retrognathic Mandible Prognathic Maxilla / Retrognathic Mandible Orthognathic Maxilla / Orthognathic Mandible Loading … Question 1 of 20
