A substantial increase the maxillary width is usually best obtained by placing 1) Lingual arch wire 2) A sutural expansion fixed appliances 3) Posterior intermaxillary cross elastics 4) A face-bow with an expanded inner bow
OrthodonticsAnswer: 2
In an individual whose mandible is growing less forward than expected, the lower incisors will probably be inclined 1. Backward 2. Forward 3. Vertically over basal bone 4. No relation at all
OrthodonticsAnswer: 2
If a tooth is bodily moved lingually, the cells that occur on lingual alveolar wall 1) Osteoblasts 2) Osteoclasts 3) Odontoblasts 4) Ameloblasts
OrthodonticsAnswer: 2
Who has developed cephalometrics 1) Broadbent 2) Bjork 3) Buonocore 4) Begg
OrthodonticsAnswer: 1
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
When length of a spring is double, the force exerted by the spring 1) Decreases by 8 times 2) Increases by 8 times 3) Decreases by 16 times 4) Increases by 16 times
OrthodonticsAnswer: 1
Most important factor in planning for a space maintainer 1) Age of child 2) Amount of bone covering erupting permanent tooth 3) Stage of development of permanent tooth 4) Economical factors
OrthodonticsAnswer: 2
Age of closure of spheno-occipital synchondrosis 1) 6 years 2) 12 years 3) 18 years 4) 25 years
