Disadvantage of the use of laminated arch wire is 1) Lack of stability 2) Fracture 3) Abruptness in response to adjustment 4) Difficult to handle clinically
OrthodonticsAnswer: 3
Which of the following conditions cannot be assessed by a lateral cephalogram 1) Mandibular lateral asymmetry 2) Vertical facial discrepancy 3) Increased posterior height 4) Decreased anterior height
OrthodonticsAnswer: 1
X-rays were discovered by 1) Madam Curie 2) Roentgen 3) Rutherford 4) Becquerel
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
Marked lingual eruption of an upper central incisor in otherwise normal occlusion of a 8-year-old boy can be treated by 1) Cross-bite elastics 2) Tongue blade therapy 3) Myofunctional therapy 4) Maxillary Hawley appliance with "Z" springs
OrthodonticsAnswer: 4
A reliable indicator of pubertal growth spurt on hand-wrist films is sought as 1) Ossification of adductor sesamoid 2) Appearance of hook of hamate 3) Ossification of all the carpal bones 4) Ossification of pisiform
OrthodonticsAnswer: 1
All of the following can be classified as myofunctional appliances except 1) An anterior bite plane 2) Andersen appliance 3) Begg appliances 4) Oral screen
OrthodonticsAnswer: 3
Enlarged tonsils in 6-year-old child by age 12, most likely to be 1) Larger 2) Smaller 3) Same size 4) Hyperaemic
