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Hygiene 120 > Dental Biofilm and other Soft Deposits > Flashcards

Dental Biofilm and other Soft Deposits Flashcards

1
Q

Tenacious membranous layer that is amorphous, acellular, and organic?

A

Acquired Pellicle

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2
Q

Name 3 types f Pellicle

A
  1. Surface Pellicle, Unstained
  2. Surface Pellicle, Stained
  3. Subsurface Pellicle
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3
Q

Which Pellicle is clear, translucent, insoluble, and not visible until disclosed?

A

Surface Pellicle, Unstained

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4
Q

Which Pellicle can have extrinsic stain and be brown, grayish, or other colors?

A

Surface Pellicle, Stained

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5
Q

Which Pellicle is embedded in tooth structure, particularly where tooth is demineralized?

A

Subsurface Pellcile

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6
Q

Pellicle thickness varies from _____ microns, and greatest near where?.

A

0.1-0.8 and gingival margin

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7
Q

Name the significance of Pellicle

A

A. Protective-provides barrier against acids.
B. Lubrication-keeps surfaces moist.
C. Nidus of Bacteria-biofilm aids in adherence of microorganisms
D. Attachment of Calculus

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8
Q

What is a dense, nonmineralized complex mass of colonies in a gel-like intermicrobial matrix that adheres directly to the acquired pellicle?

A

Dental Biofilm

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9
Q

Gingivitis develops in how many weeks if biofilm is left on?

A

1-3 weeks

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10
Q

Name some detections of Biofilm?

A

A. Direct Vision (is it thin, stained, or thick)
B. Use of explorer.
C. Use of disclosing agent.
D. Clinical Record.

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11
Q

Name some factors that influencing Biofilm Accumulation?

A
  1. Crowded Teeth.
  2. Rough Surfaces.
  3. Difficult to Clean.
  4. Out of Occlusion.
  5. Bacterial Multiplication(thickness of biofilm
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12
Q

Acquired Pellicle is composed of what? and absorbed by what?

A

glycoproteins from saliva

hydroxyapetite of tooth structure

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13
Q

Acquired Pellicle is formed when?

A

Within minutes after material has been removed from tooth, pellicle begins to form.

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14
Q

In what day(s) can inflammation be observed in the gingival tissues?

A

7-14

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15
Q

In what day(s) is gingivitis evident clinically?

A

14-21

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16
Q

Dental biofilm consists of what type of inorganic elements?

A

Calcium and Phosphorus

fluoride

17
Q

Dental biofilm consists of what type of organic elements?

A

Carbohydrates

Proteins

18
Q

There are over how many distinct bacterial species found in the oral cavity?

A

700

19
Q

Composition of Dental Biofilm consists of what percentage organic/inorganic solids?
And consist of what percentage of water?

A

20%

80%

20
Q

What is the most universal daily mechanical disruption method used for removal of Biofilm?

A

Manual or power toothbrushing

21
Q

Not made up of or containing cells? (Term)

A

Acellular

22
Q

The pellicle can be fully formed within how many minutes?

A

30-90 minutes

23
Q

Pellicle can be removed how?

A

by air polishing/rubber cup/brushing/flossing

24
Q

The forceful wedging of food into the periodontium by occlusal forces? (Term)

A

Food impaction

25
Q

White blood corpuscle capable of amoeboid movement; functions to protect the body against infection and disease? (Term)

A

Leukocyte

26
Q

T/F **Perio disease and dental caries are infectious transmissible diseases caused by pathogenic microorganisms found in microbial biofilm (KNOW)

A

True

27
Q

Adjective applied to dental biofilm that is conducive to the formation or calculus?

A

Calculogenic

28
Q

Adjective to indicate a conduciveness to the initiation of dental caries, such as a cariogenic biofilm or a cariogenic foods? (Term)

A

Cariogenic

29
Q

Attachment of one substance to the surface of the surface another; the action of a substance in attracting and holding other materials or particles on its surface? (Term)

A

Adsorption

30
Q

Heterotrophic microorganism that can live and grow in the presence of free oxygen; some are obligate, others facultative (Term)

A

Aerobe

31
Q

Heterotrophic microorganism that lives and grows in complete or almost complete absence of oxygen? (Term)

A

Anaerobe

32
Q

Dynamic, complex, multispecies communities of microorganisms that colonize the oral cavity. Unique characteristics allow biofilms to adapt to a variety of every changing environments; characteristics include: tenacious adherence to surfaces, protective EPS, three-dimensional structures with complex nutrient and communication pathways? (Term)

A

Biofilm

33
Q

White or cream-colored “cheesy” mass that can collect over dental biofilm on unclean, neglected teeth; it is composed of food debris, mucin, bacteria sloughed epithelial cells? (Term)

A

Material Alba

34
Q

Is a dense, nonmineralized complex mass of colonies in a gel-like intermicrobial matrix. It adheres directly to the acquired pellicle?

A

Dental Biofilm (Plaque)

35
Q

Biofilm forms in how many days?

A

Usually 1-3

36
Q

During biofilm formation, where does it usually begin?

A

Gingival margin particularly proximal surfaces

37
Q

How do yo detect biofilm?

A

Direct vision
Use of explorer
Disclosing agent
Clinical record

38
Q

Is a disease of dental calcified structures that is demineralized by mineral components and dissolution of organic matrix?

A

Dental caries

39
Q

In a healthy sulcus ______bacteria is present. And in a diseased pocket _______bacteria is present

A

Aerobic

Anaerobic

Hygiene 120 (10 decks)

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