A 7-year-old child has normal occlusion except for lingually erupted maxillary central incisors. He should be treated with 1) Crossbite elastic 2) Tongue blade therapy 3) Maxillary acrylic inclined plane 4) Myofunctional therapy
OrthodonticsAnswer: 2
Four dentists did study model analysis by Johnson and Tanaka, Moyer"s stanley and kerber, Wits analysis. Which one will give the best results 1) Johnson and Tanaka 2) Moyer"s 3) Stanley and Kerber 4) Wits
OrthodonticsAnswer: 3
Main growth site in mandible 1) Gonial angle 2) Body of mandible 3) Condylar cartilage 4) Coronoid process and ramus
OrthodonticsAnswer: 3
Which of the following mechanical separators can be placed just few hours before banding 1) Spring 2) Elastic 3) Dumbell 4) Brass wire
OrthodonticsAnswer: 2
Which of the following is a self-correcting anomly 1) Ugly duckling stage 2) Deep bite 3) Retrusion 4) Protrusion
OrthodonticsAnswer: 1
Calcification of first permanent molars starts at 1. 1.5 weels IU life 2. At birth 3. 6 months after birth 4. 2.5 years after birth
OrthodonticsAnswer: 2
Which of the following are true of chin cap 1) It has to exert 2-3 pounds if worn for 10-12 hours 2) It has to exert 1-2 pounds if worn for 16-18 hours 3) It has to be worn for 24 hours/day to correct severe prognathic mandible 4) All of the above
OrthodonticsAnswer: 4
The optimal time to employ an orthodontic appliance that takes advantage of growth 1) Late primary dentition 2) Early mixed dentition 3) Late mixed dentition 4) Only in permanent dentition
