MT - SECRETIONS OF THE ORAL CAVITY - Oral Physio

acts as a mirror to the systemic status of an individual owing to its ability to act as a diagnostic fluid for detecting a number of conditions and diseases.

Saliva

is a potential noninvasive diagnostic fluid for detection of a number of biomarkers of disease and health.

Saliva

is a complex physiological fluid of the oral cavity which coats the teeth and oral mucosa.

Saliva

Saliva contains ___% water and ____% inorganic and organic substance

99; 1

The salivary glands can be classified as a major which produces __% of salivary flow and minor (__%) salivary glands.

95; 5

salivary glands located outside the oral cavity

Major salivary glands

it is the biggest salivary gland, pyramidal in shape

Parotid

Parotid produces __% of the total salivary flow, found anterior to the ear

60-65%

Parotid opens to the ____ which is opposite the maxillary 2nd molar

Stensens's duct

Irregular salivary gland, walnut in shape

Submandibular/Submaxillary

Submandibular/Submaxillary produces ___% of the total salivary flow; lies posteriorly to the floor of the mouth or at the angle of the mandible

20-30%

Submandibular/Submaxillary opens to the ___ (summit of the sublingual papilla at the side of the frenulum of the tongue)

Wharton's duct

It is the smallest salivary gland, almond in shape

Sublingual

Sublingual produces ___% of the total salivary flow

Lies immediately beneath the oral mucosal lining on the anterior portion of the floor of the mouth

2-5%

Sublingual opens to the ____ at the surface of the sublingual fold on either side of the tongue

Bartholin's duct

Secretion is primarily by unconditioned reflex associated with eating and masticatory proprioceptors of the PDL and MS of mastication.

Minor salivary glands

_____ ml is the total salivary fluid produced during a 24-hour period (1 cc/ min) in Minor salivary glands

1,000-1,500 ml

main digestive enzyme

Amylase

⭐Sulfated glycoproteins that trap, aggregate, and clear bacteria

Mucins

⭐Break down food particles that stick to teeth, reducing the bacteria build-up that can lead to decay

Enzymes (Amylases)

⭐Cationic protein that damages the cell walls of bacteria, rendering them active

Lysozyme

⭐Iron-binding glycoprotein that deprives bacteria of energy generating iron so that they cannot survive

Lactoferrin

⭐Protein that forms free radical compounds in bacterial cells which cause them to self-destruct

Peroxidase enzyme

⭐Antigen-binding proteins that block the adherence of bacteria to the tooth surface and/or promote the clearance of bacteria from tooth surface.

Immunoglobulins

The first step in plaque formation is formation of ____ followed by plaque formation and maturation

pellicle

_____ and ____ produced by the salivary glands form a protective covering for the mucous membrane against irritants.

Glycoproteins and mucoids

The saliva is a mixed fluid, as it is composed of saliva secreted by both major and minor salivary glands which are both ____ and ____

serous and mucous