First incisor to erupt is
a) Lower central
b) Upper central
c) Lower lateral
d) Upper lateral
Correct Answer - A
Ans. is ‘a’ i.e.,Lower central [Ref Reddy 30thie p. 60]
First temporary tooth to upper (in primary dentition) is lower central
incisors and last temporary tooth to erupt is2nd molar. The
sequence of eruption is lower central incisor > upper central incisor
upper lateral incisor >lower lateral incisor > I" molar > Canine >
molar. Therefore eurption of temporary teeth is completed by
eruption of 2"° molar at 25 months (2 years).
First permanent tooth to erupt (in secondary dentition) is 1" molar
and last to erupt is 3rd molar. The sequence of eruption is 1" molar >
central incisor > lateral incisor > 1" premolar > 2" premolar > canine
2" molar > 3rd molar. Eruption of permanent teeth is completed by
eruption of 3rd molar between 17-25 years.