1. A Moment: Force ratio of 7 will cause: Uncontrolled tipping Controlled tipping Torqueing Translation 2. Exclusive of third molars, the permanent dentition is usually completely erupted by the age of 12 to 14 years. 15 to 17 years. 9 to 11 years. 18 to 21 years. 3. All of the following are types of tooth movement EXCEPT one. Which one is the EXCEPTION? translation Tipping pulling extrusion 4. The Frankfort-horizontal is a reference plane constructed by joining which of the following landmarks? Porion and sella. Nasion and sella. Porion and nasion. Porion and orbitale. 5. In a 17 year old male with a vertical growth pattern, deep anterior bite and crowding of dentition requires orthodontic treatment. In such a case, correction of deep bite while maintaining mandibular plane can be achieved by: Relative extrusion of posteriors Relative intrusion of anteriors Absolute intrusion of anteriors Absolute intrusion of posteriors 6. Ulnar sesamoid bone calcification starts in Prepubertal growth spurt Puberty Birth 3 months after birth 7. A tongue thrust is most often found in a child with a deep overbite. an anterior open-bite. an Angle Class II, division 2 malocclusion. a bimaxillary protrusion. 8. In a case with Class II malocclusion in a growing child, why is deep bite corrected before overjet: To remove mechanical obstruction in normal mandibular anterior shift To aid in bonding brackets to lower anterior teeth To reduce palatal trauma due to traumatic deep bite To achieve faster tooth movement 9. Moyers D type CLASS II malocclusion is Orthognathic Maxilla / Orthognathic Mandible Retrognathic Maxilla / Retrognathic Mandible Orthognathic Maxilla / Retrognathic Mandible Prognathic Maxilla / Retrognathic Mandible 10. Which of the following metals shows the property of twinning Cobalt chromium All of the above Stainless steel Nickel titanium alloy 11. Seventh key of normal occlusion: Crown angulation and inclination Palatal plane Bolton ratio Molar relation 12. In an Angle Class I occlusion, which cusp of which permanent tooth moves between the mesiolingual and distolingual cusps of the mandibular second molar in a working side movement? Mesiolingual cusp of the maxillary second molar. Mesiolingual cusp of the maxillary first molar. Distolingual cusp of the maxillary second molar. Distolingual cusp of the maxillary first molar. 13. Which orthodontic analysis uses the dimensions of the upper and lower anterior teeth to predict the dimensions of the posterior teeth: Bolton’s analysis Carey’s analysis Hixon and Oldfather Moyers analysis 14. Which of the following ortho wire has least modulus of elasticity Beta titanium Cobalt chromium Niti Stainless steel 15. What is the right sequence of orthodontic treatment planning from diagnosis to result: Synthesis and diagnosis, treatment objectives, treatment planning, plan mechanics, treatment Synthesis and diagnosis, treatment planning, treatment objectives, plan mechanics, treatment Treatment objectives, treatment planning, Synthesis and diagnosis, plan mechanics, treatment Synthesis and diagnosis, plan mechanics, treatment objectives, treatment planning, treatmen 16. 12 primary and 12 permanent teeth seen at what age in a child: 13.5 8.5 6.5 11.5 17. During intrusion, the center of rotation lies: Outside the tooth At infinity Inside the tooth at 1/3rd distance from apex At CEJ 18. Which of the following Class II Division 1 malocclusion(s) is/are most likely to be corrected with a cervical headgear? Increased lower anterior face height, prognathic mandible, retrognathic maxilla. Prognathic maxilla, decreased lower face height, increased over bite. Open bite, prognathic maxilla, prognathic mandible. Retrognathic mandible, retrognathic maxilla, open bite. 19. A Child with a Unilateral crossbite on closure is most probably suffering from: Bilateral constriction of maxilla Bilateral constriction of maxilla with deviated closure into unilateral crossbite Unilateral constriction of maxilla with deviated closure into unilateral crossbite Unilateral constriction of maxilla 20. In an infant, the gum pad is separated from palate by: Dental groove Transverse groove Lateral sulcus Gingival groove Loading … Question 1 of 20
