Intro To Tooth Morphology - Permanent & Deciduous Teeth

Question 1

How many teeth makes up the primary dentition?

Answer 1

20

Question 2

What teeth do the primary dentition lack?

Answer 2

No Pre molars or Third molars

Question 3

What is the first tooth to erupt in deciduous teeth?

Answer 3

Mandibular incisor

Question 4

What is the first tooth to erupt in deciduous teeth?

Answer 4

Mandibular first molar

Question 5

When does a complete dentition occur between?

Answer 5

6 months - 12yrs

Question 6

When does a complete permanent dentition occur between?

Answer 6

12yrs - 18/25yrs

Question 7

Difference between permanent and deciduous teeth?

Answer 7

Deciduous
- white/gray
- thinner enamel
- enamel colour is more opaque
- enamel soft / permeable
- cusps sharper
- larger pulp chamber
- shorter roots
- root crown ration is larger (crown is larger)
- molars have more divergence
- root cancel extremely fine

Permanent
- yellow / white
- thicker enamel
- enamel hard / less permeable
- rounded cusps
- root is longer than crown
- root canal patent and well developed