7.6 teeth

what is the purpose of teeth?

mechanical digestion (chewing)

what do teeth do?

breaks down food by increasing surface area to allow more access for chemicals

what are the 3 parts of a tooth?

crown, neck, and root

what is the crown?

portion projecting into the cavity from the surface of the gums

what is the neck?

the section between the crown and root

what is the root?

section below the gum line

what is an alveolus?

bony tooth socket that the root sits in

what is deciduous teeth?

baby teeth

how many deciduous teeth are there?

20

when do all your deciduous teeth come in?

2 years old

what are the types of deciduous teeth?

2 incisors, 1 canine, 2 deciduous molars (5 on each side)

how many permanent teeth are there?

32

what are wisdom teeth AKA?

third molars

what are the 3 additional sets of teeth compared to deciduous teeth?

2 sets of premolars and third molars