A. Calcification of maxillary primary first premolar is completed at birth
B. Mandibular first molar erupts at one and half years of age
C. The crowns of primary dentition are more yellowish than permanent
D. The primary dentition is initiated at 10th month in uterus
Related Mcqs:
- While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?
A. 3-6 years
B. 7-10 years
C. 11-14 years
D. 15- 18 years - Among the difference between teeth in the decidous and the permanent dentition is that_____________?
A. Buccal surfaces of the permanent molars are flatter
B. Cervical ridges are more pronounced in permanent molars
C. Root trunks of decidous teeth are larger compared with their overall root lengths
D. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths - Which among the following is NOT a common finding of the decidous dentition ?
A. Tight contacts, absence of spacing
B. Shallow overjet and overbite
C. Flush terminal plane
D. Ovoid arch form - The correct dentition in a 9- years old child is_____________?
A. 12 CDE6
B. 12C456
C. 123DE6
D. 123456 - Which of the following decidous molars bears the greatest resemblance to a premolar _____________?
A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second - Primary dentition period is______________?
A. From birth to 11 years
B. From 6 months to 11 years
C. From 6 months to 6 years
D. From 6 years to 11 years - In the majority of situations, that first decidous tooth to erupt is the____________?
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary second molar - The largest mesiodistal diameter in primary dentition is____________?
A. Mandibular 1st molar
B. Mandibular2nd molar
C. Maxillary 2nd molar
D. None of the above - Pulp chambers and roots canals in decidous teeth______________?
A. Wide and deep
B. Shallow and narrow
C. Wide and narrow
D. Shallow and wide - The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?
A. Mesiolingual
B. Distolingual
C. Mesiobuccal
D. Distobuccal
