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... Acquired pellicle
2. ... calculus
ACQUIRED PELLICLE
An organic, tenacious, membranous, amorphous, structure less layer, with physical shape.
It forms over exposed tooth surfaces and prosthetic work within minutes of tooth brushing; it is therefore always present in a thin layer 0. ... Plaque is adherent to the tooth and is classified as being either super or sub gingival.
The development of the plaque begins at the gingival margin areas, particularly interdentally, if left undisturbed; it will increase rapidly and progress over the middle 1/3 of the tooth but rarely reaching the incisal or occusal areas. ...
Plaque is usually tooth coloured but is capable of taking up stains which change its appearance at it become yellow or slight tinged with green. ...
Very different kinds of plaque between stage 1 and 2 the more mature the plaque the more damaging to the tooth surface it is. ... Which means more bacteria, food will stick and it will stick more firmly on the tooth, they are significant in thickness determines how attractiveness they are for other bacteria.
Polysaccharides are significant as they are sticky
Act like glue
Attracting more bacteria to the plaque
Contributing to the adhesion of the plaque to the tooth surface
COMPOSITION OF PLAQUE
INORGANIC
High percentage of calcium and phosphate plus other trace elements
ORGANIC ELEMENTS
Products of bacterial metabolism
ACIDS
These are formed by the action of bacteria on the refined CHO in the diet
Latic and pyruvic some significance in erosion the more refined
CHO in diet the more found in plaque. ... Complicated interactions between the bacteria pellicle and the tooth “people who form plaque quickly”
4.
Approximate Word count = 1351
Approximate Pages = 5.4
(250 words per page double spaced)
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