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TOOTH AND IT'S SUPPORTING TISSUES (PART 2) - Coggle Diagram
TOOTH AND IT'S SUPPORTING TISSUES (PART 2)
VASCULAR NETWORK
BLOOD VESSELS
Enter and exit the dental pulp by way of the apical and accessory foramina
Vessels leaving the dental pulp are associated with the arterioles and nerve bundles
entering the apical foramen
ARTERIOLES
Occupy a central position within the pulp
Pass through the radicular
portion of pulp
Branch into the
subodontoblastic area
Divide and subdivide to form an extensive
vascular capillary network
LYMPHATIC NETWORK
Arise as small, blind, thin-walled vessels in the coronal region of the pulp
Pass apically through the middle and radicular regions of the pulp
Exit via one or two larger vessels through the apical foramen
Differentiated from small venules
Sympathetic adrenergic nerves terminate in relation to arteriolar walls
Afferent free nerve endings terminate in relation to arterioles, capillaries, and veins
CLINICAL IMPLICATIONS
FLUORIDATION
Aids in caries prevention, for the caries process is initiated by demineralization of enamel
Remineralization reaction is enhanced greatly by fluoride
ACID ETCHING
Removes plaque and other debris, along with a thin layer of enamel
Increases porosity of exposed surfaces through selective dissolution of crystals
SENSITIVE TEETH
Result of worn tooth enamel or exposed tooth roots
High or low temperature may cause fluid movement within the dentinal tubules
ORTHODONTICS
Correction of mispositioned teeth and jaws
Moved by controlled force over long period of time
IS ALL DENTAL TISSUE LIVING TISSUE?
Most of the dental tissue are living tissues, except for the email
Email does not have the capacity to grow or regenerate
Email does not contain living cells
Emails consists of 96% crystalline calcium
phosphate (inorganic material)
AFFECTS ORAL CAVITY ENVIRONMENT
Environment of oral cavity affects the structure and composition of dental supporting tissues and the teeth
ACIDIC ENVIRONMENT
Acidic pH in saliva can cause teeth to suffer from dental erosion
Softening of
the enamel surface
Lead to enamel loss, tooth decay, and cavities
DEMINERALIZATION
Shortage of mineral ions compared to tooth enamel's mineral content
Acids produced by plaque and bacteria eat away the enamel crystals
Results in porous tooth enamel and cavities