Untrue about "tongue thrusting" 1) Tongue thrust develops as a function adaptation in anterior open bite 2) Tongue thrust may not all times result in malocclusion 3) All anterior open bites are the result of tongue thrust 4) This habit decreases with age
OrthodonticsAnswer: 3
The major aetiological factor for class II malocclusion 1) Sleeping habits 2) Thumb sucking 3) Growth discrepancy 4) Tooth-jaw size discrepancy
OrthodonticsAnswer: 3
As age advances, the human profile generally 1) Remains the same 2) Increases in convexity 3) Decreases in convexity 4) Decreases in concavity
OrthodonticsAnswer: 3
If a child stayed for first month of his postnatal life in fluoridinated area, portion of first molar which shows deposition of fluoride 1) Cervical enamel 2) Deep layer of enamel and outer layer of dentin 3) Outer layer of enamel and deep layer of dentin 4) None of the above
OrthodonticsAnswer: 2
Teeth that are initiated after birth 1) Premolars, permanent second and third molars 2) Premolars and permanent molars 3) All permanent teeth 4) Only permanent molars
OrthodonticsAnswer: 1
Maxilla develops by 1) Endochondral bone formation 2) Intramembranous bone formation 3) Both of the above 4) None of the above
OrthodonticsAnswer: 2
Developing crossbites are treated by using 1) Z sping 2) Tongue blade 3) Crossbite elastics 4) Bite plane
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
