How many pulpal horns are there in the mandibular second primary molar ?
A. 3
B. 6
C. 4
D. 5
What is the thickness of the layer of primsless enamel found in primary teeth_?
A. 25 μm
B. 50μm
C. 75μm
D. 100μm
The crowns and roots of primary molar at their cervical portions are more__?
A. Slender mesiodistally
B. Slender anteroposteriorly
C. Bulkier mesiodistally
D. Buliker anteroposteriorly
During the development of a tooth, sound coalescence of the lobes results in__?
A. Grooves
B. Fissures
C. Cusps
D. All of the above
The largest mesiodistal diameter in primary dentition is_?
A. Mandibular 1st molar
B. Mandibular2nd molar
C. Maxillary 2nd molar
D. None of the above
How many cusps does the crown of the maxillary first primary molar have ?
A. 2
B. 3
C. 4
D. 5
Pulp chambers and roots canals in decidous teeth_?
A. Wide and deep
B. Shallow and narrow
C. Wide and narrow
D. Shallow and wide
Primary teeth differ from permanent teeth in following aspects ?
A. Thickness of enamel and dentin
B. Pulp chambers are longer
C. Roots are flaring
D. All of the above
Transverse ridge is prominent on occlusal surface of which of the following decidous teeth ?
A. Mandibular first molar
B. Maxillary first molar
C. Mandibular second molar
D. Maxillary second molar
The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is__?
A. Mesiolingual
B. Distolingual
C. Mesiobuccal
D. Distobuccal
