SKA Week 7:

Parotid Gland’s Duct

Stensen’s duct opens opposite of upper second molar

Submandibular Gland’s Duct

Wharton’s duct opens under the tongue

Sublingual Gland’s Duct

Rivinus ducts opens in floor of mouth

Saliva type from Parotid Duct

serous saliva

Saliva type from Submandibular Duct

mixed saliva

Saliva type from Sublingual Duct

mucous saliva

Function of saliva

Lubrication, protection, digestion, antimicrobial, buffering, taste, tooth remineralization, wound healing

1st Eruption Step

pre-eruptive: tooth forms in the jaw

2nd Eruption Step

eruptive: tooth pushes through bone + gum, root grows, bone reshapes

3rd Eruption Step

post-eruptive step: tooth adjusts as jaw grows

1st Exfoliation Step

root resorption: odontoclasts break down root, permanent tooth pressures

2nd Exfoliation Step

loss of support: periodontal ligament weakens

3rd Exfoliation Step

final exfoliation: root is resorbed, tooth falls out

holes caused by odontoclasts on deciduous root

howship’s lacunae