TEETH: THE BEGINNING OF DIGESTION

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Presentation transcript:

TEETH: THE BEGINNING OF DIGESTION

NOTES – TEETH: THE BEGINNING OF DIGESTION Parts of Teeth Dentin most of the tooth matrix similar to bone except no living cells

Enamel calcium phosphate hardest substance produced by the body

Pulp Cavity blood vessels & nerves – enter through root foramen (opening) at base of tooth

Other tooth parts/stuff crown, neck, root, gum or GINGIVA

deciduous (baby) teeth – 20 by age 2

Adult teeth - 32 note locations of incisors, canines, premolars, molars

Problems with Teeth Plaque bacteria sticking to surface of teeth – produces sticky matrix that traps food particles this protects bacteria from saliva

Cavities acid from bacteria erode the structure of the tooth can be prevented by brushing and FLOSSING

bacteria infect pulp – destroy pulp cavity and nerve Root Canal pulp must be removed and packed with solid materials