primary dentition

Question 1

3 differences between primary and permanent dentition?

Answer 1

primary is lighter in colour
primary enamel is softer
primary teeth are smaller

Question 2

where is the cusp of carabelli often present on primary teeth?

Answer 2

mesio-palatal cusp of upper E’s

Question 3

how many cusps do upper Ds have? and what are they?

Answer 3

have 3 cusps - mesio-buccal, disto-buccal, palatal

Question 4

how many cusps do lower Ds have and what are they?

Answer 4

have 4 cusps - mesio-buccal, mesio-lingual, disto-buccal, disto-lingual

Question 5

what are cusps separated by?

Answer 5

fissures

Question 6

Large bulge of enamel in cervical region of mesio-buccal area known as the?

Answer 6

Tubercle of Zukerkandl

Question 7

what is the order of primary teeth erupting?

Answer 7

A B D C E

Question 8

A erupts approx?

Answer 8

6 months

Question 9

B erupts ?

Answer 9

9 months

Question 10

C erupts?

Answer 10

18 months

Question 11

D erupts?

Answer 11

12 months

Question 12

E erupts?

Answer 12

24 months

Question 13

on the incisal edge of newly erupted teeth there are small tubercles called what?

Answer 13

mamelons

Question 14

the crowns of deciduous teeth are similar to permanent teeth but differ in some ways what are 3 ways?

Answer 14

the cusps on new erupted teeth are more pointed

deciduous teeth are smaller

deciduous teeth are more bulbous

Question 15

give two differences between the roots of deciduous molars to permanent molars?

Answer 15

deciduous roots are very fine compared to permanent

deciduous roots are shorter

deciduous roots are more divergent

Question 16

how many roots does the upper first deciduous molar have?

Answer 16

3

Question 17

what percentage of teeth have a cusp of carabelli?

Answer 17

between 50-75%

Question 18

a cervical bulge is often present on the buccal aspect of the crown of a lower first deciduous molar what is the name of this?

Answer 18

the tubercle of zuckerkandl

Question 19

how many roots does the lower second deciduous molar have and where are they situated?

Answer 19

2 roots
mesial
distal

Question 20

give the order of eruption of the upper & lower deciduous teeth

Answer 20

ABDCE

Question 21

what age is the primary dentition fully erupted?

Answer 21

two and a half years