Dental Biofilm and other Soft Deposits

Question 1

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

Answer 1

Acquired Pellicle

Question 2

Name 3 types f Pellicle

Answer 2

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

Question 3

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

Answer 3

Surface Pellicle, Unstained

Question 4

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

Answer 4

Surface Pellicle, Stained

Question 5

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

Answer 5

Subsurface Pellcile

Question 6

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

Answer 6

0.1-0.8 and gingival margin

Question 7

Name the significance of Pellicle

Answer 7

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

Question 8

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

Answer 8

Dental Biofilm

Question 9

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

Answer 9

1-3 weeks

Question 10

Name some detections of Biofilm?

Answer 10

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

Question 11

Name some factors that influencing Biofilm Accumulation?

Answer 11

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

Question 12

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

Answer 12

glycoproteins from saliva

hydroxyapetite of tooth structure

Question 13

Acquired Pellicle is formed when?

Answer 13

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

Question 14

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

Answer 14

7-14

Question 15

In what day(s) is gingivitis evident clinically?

Answer 15

14-21

Question 16

Dental biofilm consists of what type of inorganic elements?

Answer 16

Calcium and Phosphorus

fluoride

Question 17

Dental biofilm consists of what type of organic elements?

Answer 17

Carbohydrates

Proteins

Question 18

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

Answer 18

700

Question 19

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

Answer 19

20%

80%

Question 20

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

Answer 20

Manual or power toothbrushing

Question 21

Not made up of or containing cells? (Term)

Answer 21

Acellular

Question 22

The pellicle can be fully formed within how many minutes?

Answer 22

30-90 minutes

Question 23

Pellicle can be removed how?

Answer 23

by air polishing/rubber cup/brushing/flossing

Question 24

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

Answer 24

Food impaction

Question 25

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

Answer 25

Leukocyte

Question 26

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

Answer 26

True

Question 27

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

Answer 27

Calculogenic

Question 28

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

Answer 28

Cariogenic

Question 29

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)

Answer 29

Adsorption

Question 30

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

Answer 30

Aerobe

Question 31

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

Answer 31

Anaerobe

Question 32

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)

Answer 32

Biofilm

Question 33

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)

Answer 33

Material Alba

Question 34

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

Answer 34

Dental Biofilm (Plaque)

Question 35

Biofilm forms in how many days?

Answer 35

Usually 1-3

Question 36

During biofilm formation, where does it usually begin?

Answer 36

Gingival margin particularly proximal surfaces

Question 37

How do yo detect biofilm?

Answer 37

Direct vision Use of explorer Disclosing agent Clinical record

Question 38

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

Answer 38

Dental caries

Question 39

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

Answer 39

Aerobic | Anaerobic