Identify the incorrectly matched item 1) Ethmoid-purely endochondrial bone 2) Parietal-purely membranous bone 3) Maxillary-both endochondrial and intramembranous 4) Nasal-purely membranous bone
OrthodonticsAnswer: 3
SNB angle describes the relationship of the 1) Maxilla to the cranial base 2) Mandible to the cranial base 3) Maxilla to the mandible 4) All of the above
OrthodonticsAnswer: 2
In a child of age 7 years, permanent central incisor is trying to erupt while primary tooth is still firm in place. The course of treatment 1) Luruate the primary tooth to facillitate its exfoliation 2) Extract the primary tooth to facilliate the eruption of permanent tooth 3) All of the above 4) None of the above
OrthodonticsAnswer: 2
Edgewise bonded brackets are used 1) On incisal edges of anterior teeth 2) To obtain edge-to-edge occlusion 3) With rectangular arch wire 4) None of the above
OrthodonticsAnswer: 3
Delay in pubertal growth on hand-wrist radiographs is indicated by 1) Absence of pisiformis 2) Absence of sesamoid 3) Absence of capitum 4) Absence of hemantum
OrthodonticsAnswer: 2
In skeletal class III malocclusion will show 1) ANB of +8 degrees 2) ANB of -6 degrees 3) ANB of 0 degrees 4) ANB of +2 degrees
OrthodonticsAnswer: 2
First evidence of calcification of IInd premolar on radiographs is at 1. Birth 2. 3-4 months 3. 1.5 to 2.5 years 4. After 3 years
OrthodonticsAnswer: 3
A primary second molar becomes ankylosed most commonly 1) During root formation 2) During physiological root resorption 3) Due to failure of alveolar bone of tooth to grow 4) All of the above
