Incompetent lips refers to 1) Inability of the lips to cover the upper incisors in the mandibular relaxed position 2) Tongue thrusts against the lips during swallowing 3) Both of the above 4) None of the above
OrthodonticsAnswer: 1
Typically rapid palatal expansion is done with a jack screw that is activated at the rate of 1) 1.0 to 2.0 mm/week 2) 1.0 to 2.0 mm/day 3) 0.5 to 1.0 mm/week 4) 0.5 to 1.0 mm/day
OrthodonticsAnswer: 4
The centre of rotation for bodily movement of tooth is located 1) Apical one-third of root 2) At infinity 3) Apical two-thirds 4) Middle one-thirds of root
OrthodonticsAnswer: 2
Extraction of all permanent first molars is called 1) Balancing extractions 2) Serial extractions 3) Wilkinson"s extractions 4) Compensated extractions
OrthodonticsAnswer: 3
Between 5 and 12 years, the following is true of overbite 1) Increase in absoulte value due to change in dentition 2) Constant percentage of overlap is maintained 3) It may increase, decrease or remain same 4) All of the above
OrthodonticsAnswer: 4
The labial bow in activator is constructed with 1) 0.6 mm 2) 0.5 mm 3) 0.7 mm 4) 0.8 mm, slightly heavier
OrthodonticsAnswer: 4
Radiographs of the jaws of a newborn child ordinarily indicate calcification of 1) 12 teeth 2) 16 teeth 3) 20 teeth 4) 24 teeth
OrthodonticsAnswer: 4
If cephalic index of a patient is more than 80 %, it indicates which of the following 1) Brachycephalic 2) Mesocephalic 3) Dolicocephatic 4) Depends on age
