Tooth morphology

Question 1

Upper 1s

Answer 1

Sharper mesial edge than lower
Curved distal edge
One root
Cingulum (cusp at base)

Question 2

Upper 2s

Answer 2

Smaller version of 1s

One root

Question 3

Upper 3s

Answer 3

Diamond shape
Shorter mesial edge
One long root

Question 4

Upper 4s

Answer 4

Canine fossa (sometimes)
2 roots
Even cusps

Question 5

Upper 5s

Answer 5

Even cusps

1 root

Question 6

Upper 6s

Answer 6

4 cusps - mesiopalatally can also be cusp of Carabelli
3 roots (2B, 1P_)
2 buccal cusps even, smaller disto-palatal cusp

Question 7

Upper 7s

Answer 7

Same as 6 but smaller
3 roots (2B, 1P)
No cusp of Carabelli

Question 8

Upper 8s

Answer 8

Triangle-like - ‘Trigon’
Smaller and squashed
3 roots (2B, 1P)

Question 9

Lower 1s

Answer 9

Sharp mesial edge
Realistically very worn
1 root

Question 10

Lower 2s

Answer 10

Fan shaped

1 root

Question 11

Lower 3s

Answer 11

Longer and narrower crown than upper
Less pointed cusp
1 root, shorter than upper

Question 12

Lower 4s

Answer 12

Buccal cusp much larger than lingual

1 root

Question 13

Lower 5s

Answer 13

Large cusp buccally
Looks like 3 cusps
1 root

Question 14

Lower 6s

Answer 14

5 cusps (3B, 2L)
2 roots

Question 15

Lower 7s

Answer 15

4 even cusps
2 roots (1B, 2L)
Smaller (slightly) than 6

Question 16

Lower 8s

Answer 16

4 even cusps
Smaller than 7
More squashed
2 roots (1B, 1L)