Lecture 4 Flashcards
when the different species of bacteria are able to coexist in the mouth and not cause damage
health
when an imbalance in the flora of the mouth occurs, and this causes a host response and destruction to tissue
disease
what is responsible for inflammatory changes in the periodontium that can lead to destruction of bone, JE and PDL causing attachment loss between the bone and tooth?
disease producing microorganisms
directly on the surface of the tooth and it begins to form very quickly after cleaning the teeth. Is formed by glycoproteins from the saliva and is invisible unless its stained with disclosing solution
acquired pellicle
comes from the colonies of bacteria that form on the pellicle. It is composed of bacteria and a polysaccharide matrix. Does not contain food particles.
bacterial plaque
the white chunky stuff on the teeth. Contains food particles.
materia alba
which type of bacteria are able to grow in deeper gingival pockets?
anaerobic
he early colonizers of the tooth surface are ____ meaning they use up the oxygen giving anaerobic species a favorable environment to grow in.
aerobic
when one species provides growth factors, facilitates attachment, or creates a favorable growth environment for another species
favorable relationship between bacterial species
when one species produces a substance that inhibits growth of another species, or they compete for resources.
antagonistic relationships between bacterial species
The plaque formed by the accumulation of bacteria on the pellicle will eventually become _______ , forming ______
mineralized; calculus
a soft accumulation of bacteria, old cells, and food debris. It lacks the organizational structure that plaque has and is easily displaced with things like a water spray
materia alba
Plaque needs to be ________ removed
mechanically
interbacterial adherence (one species sticking to another species)
coaggregation
cell surface components that allow bacteria to stick to other cells and surfaces
adhesions
