1. Frontal cephalogram is used to evaluate which type of malrelation: Sn-GoGn angle Overbite Facial asymmetry Overjet 2. Two millimeters of maxillary incisor spacing in a 3 year old is indicative of a persistent tongue thrusting. normal pattern of development. maxillary Bolton deficiency. tooth size-arch size discrepancy. 3. Adolescent age group is defined as: 10-14 years 6 – 10 years 10-18 years 14-20 years 4. Incisal liability in the maxillary and mandibular arch is: 6 mm maxilla, 4 mm mandible 5 mm maxilla, 7 mm mandible 7 mm maxilla, 5 mm mandible 4 mm maxilla, 6 mm mandible 5. In a mouth breather, tonicity of upper lip is No change Decreased Increased Slightly affected 6. Which of the following ortho wire has least modulus of elasticity Stainless steel Niti Beta titanium Cobalt chromium 7. Prior to the correction of a one tooth anterior crossbite, the principle factor to consider is the morphology of the anterior teeth. developmental age of the patient. sequence of eruption of the permanent dentition. adequacy of mesio-distal space. 8. Skeletal classification of malocclusion was first given by: Salzman Kratz Moyers Angle 9. Which of the following are not classic symptoms of a sucking habit? a Class II malocclusion expanded maxillary arch retroclination of the mandibular incisors anterior open bite 10. If the centre of rotation is at the apex of the root, then the orthodontic movement which results is: Torquing Translation Uncontrolled tipping Controlled tipping 11. All of the following assumptions are considered true when doing space analysis for calculating space discrepancy except: Correlation in size of mandibular incisors and succedaneous teeth Prediction tables are most valid for all populations Arch dimensions remain stable All permanent teeth will develop normally 12. The Frankfort-horizontal is a reference plane constructed by joining which of the following landmarks? Nasion and sella. Porion and sella. Porion and orbitale. Porion and nasion. 13. Collumn angle is increased in Class I Class II Div 1 Class II Div 2 Class III 14. A 9 year old child with developing facial asymmetry and maxillary constriction and unilateral posterior cross bite comes to you for treatment. What will you do? Send for radiographic analysis Wait for eruption of all teeth Start expansion by removable appliance Refer to orthodontist 15. With a flush terminal plane, permanent first molars will erupt in: Initially Class III relation Erupt immediately into an end on relation Initially Class II relation Will assume a normal relationship immediately 16. In Steiner’s analysis, SNA is 82 degrees. This indicates: Maxillary retrusion Maxillary protrusion Normal maxillary base Mandibular protrusion 17. Serial extraction procedures involve: Orderly removal of selected primary and permanent teeth in a single sitting Orderly and sequential removal of selected permanent teeth only Orderly removal of selected primary and permanent teeth in a predetermined sequence Orderly sequential removal of selected primary teeth only 18. Superimposition in cephalometric studies is done from Registration point. This demonstrates best: Growth of structures at that point Growth of structures farthest from that point All of the above Growth of structures nearest from that point 19. Plane of reference used in transverse direction in WITS analysis: Palatal plane Sella-nasion plane Frankfurt horizontal plane Functional occlusal plane 20. Class II malocclusion usually presents a _________________ facial profile: Prognathic Orthognathic Retrognathic Complex Loading … Question 1 of 20
