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47 Cards in this Set

  • Front
  • Back
OE continuous with JE
Pristine gingiva
Pristine gingiva %
JE 10
CT 60
OE 30
PMNs are present in pristine gingiva
TRUE

PMNs are still present in healthy gums
Compare JE to CT in pristine gingiva
JE is thin

CT is dense
subep loops vs dental plexus loops in pristine gingiva
sub ep loops are constant

dentogingival plexus no loops
initial lesion
CLINICALLY HEALTY
carbon particles leak out of vessels
initial lesion
transudate
health
exudate
disease
crevicular fluid
flow rate increases with inflammation
how do PMNs get to the sulcus
through the JE
bacterial chemo attractors
LPS, fMetLeuPhe
Vascular Events Initial lesion
dialation
Increased permiability
gaps between capillary and endothelial cells
intercellular junctions close
ICAM-1
P selectin
CD 11 a

knocked out mice show decreased PMN migration
ELAM-1
CD62E

double knocked out mice show succeptibility to pyogenic bacterial infections
Reasons for ginigival stability
SEC APG

shedding
epithelial barrier
compliments
antimicro of antibodie
PMN and macrophages
GCF positive flow
correlation of gcf to pmn in sulcus
both increase similarly with plaque accumulation
what part of JE is altered in initial lesion
most coronal
perivascular collagen loss
Initial lesion
cell to fiber ratio in healthy gingiva?
low cell, high fiber
early gingival lesion changes
lymphocytes and PMNs increase

fibroblasts degenerate
basal cells proliferate

rete pegs invade coronal epithlium
early leasion
when is lesion clinically visible
early lesion
what happens to capillary bed when JE invades CT
opens up and proliferate into CT papille
accumulation of lymphoid cells immediately below JE
early leasion
which IL do activated t cells produce
2 3 4 5 6 10, 13 TNF alpha
when do T B and plasma cells become evident
established lesion
what to plasma cells produce
Igs and cytokines
Fibroblasts produce
MMPs and TIMPs
What has happened to apical JE in established lesion
NOTHING
PE
converted JE

not attached to tooth
loaded with PMNs
switch from t cell to b cell dominance
gingivitis to periodontitis
first clinical sign of periodontitis
destruction of CT root attachment and apical migration of JE
where does bone loss occur
around communicating blood vessels along crest of septum
plasma cells >50%
advanced lesion
diabetes
risk factor
oral effects of diabetes
xerostema
candida
periodontitis
perio abcesses
Type 2 diabetes bacteria
PI, CR, PG
spirocytes
increase in diabetes

increase in pregnancy
Type I diabetes bacteria
cap
when is the best time to treat perio during pregnancy
2nd trimester
naphthoquiones
form steroid used by PI

associatied with pregnancy
direct estrogen response
increase vascular permiability

decrease keratinization

decrease PME chemotaxis, and phagocytosis and Ab, T-cell responses
lower GCF

decrease PMN function

increase keratinization
smokers
Papillon-Lefevre syndrome
mutation in chromosome 11
aggressive perio is hereditable
TRUE
increase perio succeptability in Caucasion
IL-1