Card Set Information
chapter seventeen chart
coronal to the margin of the free gingiva
apical to the margin of the gree gingiva
salivary glycoprotein forms pellicle; microorganisms from saliva selectively attach to pellicle
down growth of bacteria from supra biofilm
proximal and other protected areas; cervical third; lining mand molars; pit and fissures
covers cal; pocket wall
attaches to acquired pellicle, other bacteria, tooth surfaces; unattached: loose washes away
tooth surface, subgingival pellicle, calc, subgingival flora: loose floating,motile, btw adherent biofilm on tooth and pocket epithelium
rough surfaces, malpositioned teeth, and carous lesions serve as retention for what biofilm?
pocket holds biofilm against tooth; overhangning restoration margins extending subgingivally serve as retention sites for what type of biofilm?
friction of tongue, cheek, lips, limits shape and size; thicker at cervical third and proximal; healthy: 15-20 cells thick; chronic gingivitis: 100-300 cells thick
molded by pocket wall, follows form of subgingival calc, becomes thicker as pocket wall loosens
adherent, densely packed microbial layer; intermicrobial matrix; begins with small isolated colonies, merging to form covering
3 layers: tooth-surfaced attached: gram-positive rods and cocci
unattached: gram-negative, motile, spirochetes, leukocytes
epithelium-attached: gram negative, motile, many leukocytes migrate through epithelium
Early biofilm: gram-positive cocci
3-4 days: filaments and fusiforms
4-9 days: complex flora w/rods, filamentous forms
7-14 days: vibrios, spirochetes, gram negative organisms
disease pocket: gram negative, motile, spirochetes rods
saliva ingested food are sources of nutrients for what type of biofilm?
gingival sulcus fluid, exudate, and leukocytes are sources of nutrients for what type of biofilm?
etiology of gingivitis, supragingival calc, and dental caries are significancies of what type of biofilm?
etiology of gingivitis, perio infections, and subgingival calc are significancies of what type of biofilm?