3 - Gingival Diseases Flashcards
what are the defense mechanisms of the gingiva
- JE
- GCF
- leukocytes
- saliva
what is a frontline barrier against microbial challenge
JE
how is JE a frontline barrier against microbial challenge
- cellular turnover (shedding)
- permeable
- cytokine production
what cytokines do JE produce
IL-1beta and IL-8
what is collected from sulcus in small amounts and analyzed
GCF
what may be used to help detect or diagnose active periodontal disease and may help predict patients at risk for perio disease
GCF
T/F: a critical challenge for clinicians is not the detection of perio disease but the indentification of patients with elevated risk of experiencing active and progressing disease
TRUE
MMP-8 was found where?
GCF and saliva
MMP-8 leads to what
- destruction of collagen in gingiva and alveolar bone
- associated with initiation and progression of periodontitis
- reflection of disease severity
what is used to collect and analyze GCF
periotron
what are the components of GCF
MMP-8, cells, electrolytes, and organic compounds
what cells found in GCF
bacteria, desquamated epithelial cells, leukocytes
what electrolytes found in GCF
potassium, sodium, and calcium
what organic compounds found in GCF
cytokines, prostaglandins E2, and immuniglobulins (IgG, IgA, IgM)
what are drugs secreted in GCF
- tetracycline - anti-collagenase effect
- metronidazole
what is the clinical implication of drugs secreted in GCF
adjunct to treat aggressive forms of periodontitis
what leukocytes are part of denfense mech of gingiva
PMN, B and T lymphocytes
what is a major protective mechanism against bacterial plaque
luekocytes in gingiva
how is saliva a defense mechanism of gingiva
- cleanses exposed oral surfaces
- buffering acids
- modulating bacterial activity with immune mediators
what are antibacterial factors in saliva
- lysozyme
- lactoperoxidase-thiocyanate system
- lactoferrin
- myeloperoxidase
what cleaves cell wall of Aggregatibacter actinomycetemcomitans
lysozyme
what is bactericidal to some Lactobacillus and
Streptococcus strains
lactoperoxidase-thiocynate system
what is effective against actinobacillus species
lactoferrin
what is released by leukocytes, bactericidal for actinobacillus
myeloperoxidase
what are salivary antibodies? function
IgA (predominates), IgG, IgM
fn: impair bacterial attachment
what enzymes in saliva? function
parotid amylase and anti-proteases (cathepsins)
cathepsin fn: inhibit colagen degrading enzymes
what provides maintenance of pH at mucosal epithelial cell surface and tooth surface thru bicarbonate-carbonic acid system
salivary buffers
what hasten coagulation, protect wounds from bacterial invasion
coagulation factors
what are the coagulation factors
factors VII, IX, X, plasma thromboplastin antecedent, and hageman factor
decreased saliva is associated with what
- inflammatory gingival conditions
- dental caries
- rapid tooth destruction
- cervical, cemental caries
- delayed wound healing
what are signs of gingivitis?
- BOP
- INCREASED GCF FLOW
- erythema
- edema
- gingival enlargement
- recession
what is an early detection of gingivitis? what is another early sign?
BOP; increased GCF flow
what are the effects of smoking on BOP
masks gingival inflammatory response
smoking [increased; decrease] BOP
decrease
can smoking disguise BOP
yes
warn patients who are quitting smoking that an [increase; decrease] in gingival bleeding may occur
increase
what are changes in gingival consistency
- fibrotic
- edematous
- chronic gingivitis
what does it mean to be firm, relisient in health
fibrotic
what does it mean to be soft, firable, shiny, bleeds easily, swelling, and loss of stippling
edematous
what does it mean for gingiva to become fibrotic again with an increased accumulation of collagen (fibrosis)
chronic gingivitis
what is experimental gingivtis
non-specific accumulation of microbial plaque
is experimental gingivitis reversible with removal of plaque
yes