Who is the father of modern orthodontics 1) Pierre Fauchard 2) Henry A Baker 3) Calvin Case 4) Edward H Angle
OrthodonticsAnswer: 4
Vertical section of ramus of mandible is done in which condition 1) Mandibular protrusion 2) Mandibular retrusion 3) Maxillary prognathism 4) Maxillary retrognathism
OrthodonticsAnswer: 2
Appliance which brings orthopaedic movements in children and orthodontic movements in adults 1) Hyrax 2) Biedermann 3) Quadhelix 4) Bimler
OrthodonticsAnswer: 3
Patient ages 8 years with skeletal anterior open bite is treated with 1) Posterior bite plane 2) Frankel appliance with high pull headgear 3) Posterior osteotomy to reposition posterior segment 4) Box elastics with fixed appliance
OrthodonticsAnswer: 2
Lag phase of tooth movement is due to time taken for 1) Formation of new bone 2) Resorption of bone 3) Removal of hyalinised tissue 4) Gingival fibres to adjust
OrthodonticsAnswer: 3
Compared to tipping movements produced by removable appliance, bodily movements by means of fixed appliance 1) Move teeth rapidly 2) Move teeth slowly 3) Require high forces 4) Show higher root resorption
OrthodonticsAnswer: 3
The average "leeway space" available in each half of the maxilla is approximately 1) 0.9 mm 2) 2.9 mm 3) 4.0 mm 4) 6.9 mm
OrthodonticsAnswer: 1
Good contacts in primary teeth with lack of spacing predicts 1) Normal occlusion in premanent teeth 2) Crowding in permanent teeth 3) Anterior crossbite 4) Spaced permanent dentition
