dental caries & PRP Flashcards
(35 cards)
pits and fissure lesions enamel what shape
(triangle apex towards what)
triangle apex toward occlusal
-small site at origin
-base widens towards DEJ
pits and fissure lesion dentin what shape
(triangle apex towards what)
triangle apex towards pulp
-wide base at DEJ
-apex of cone towards pulp
progression of pits and fissures resembles two triangles with their bases meeting where
along the junction of enamel and dentin
smooth surface lesion enamel triangle shape how for origin and apex
wide area of origin
apex towards DEJ
smooth surface lesion dentin shape how
wide base at DEJ
apex of cone towards pulp
how are the triangles for enamel and dentin for smooth surface lesions
pointing inward, same direction
root surface lesion begins directly on what and typically with what
cementum/dentin
recessed gingiva
what shape for root surface lesions
pot hole (saucer-shaped)
common causes of recurrent lesions
poor oral health care
restoration w poor margins -> permit leakage, entrance of both bacteria and substrate
what bacteria invades enamel and facilitates or propagates
mutans S. facilitates
what bacteria invades dentin and facilitates or propagates
lactobacillus propogates
primary vs secodary dentin
primary - initial formation of tooth, forms the primary shape of the tooth
secondary dentin - next to pulp, lifelong
physiologically, which dentin follows the complete formation of which dentin
secondary follows complete formation of primary
how does sclerotic dentin appear and what is it
darker and harder than normal dentin
occurs as result of caries or normal aging process
what is tertiary dentin and how does it compare to primary dentin
tertiary no as hard as primary
laid down in response to attrition, caries, or restorative dental procedure
tertiary dentin defensive dentin in what two terms
reactionary dentin
reparative dentin
what allows mild injury shallow carious lesion to become reactionary dentin
primary ondontoblasts
what allows deep caries lesion cause death of primary odontoblasts to generate reparative tertiary dentin
replacement cells (secondary ondotoblast)
what is the superior barrier, reactionary dentin or reparative tertiary dentin
reparative tertiary dentin
infected vs affected dentin
check slide
result of severe irritation
infection, death of pulp abscess is what
pulpal necrosis
detection of caries
pits and fissure
proximal surfaces
facial and lingual surfaces
recurrent lesions
pits and fissures - visual tactile
proximal - visual, radiographs
facial and lingual - visual, tactile w explorer
recurrent lesions - visual, tactile, radiographs
medical model paradigm includes what 2 things
prevention
re-mineralization
what can help w remineralization (2)
MI paste, fluoride
