B-1 Test Review (Plaque, Tooth Deposits & Stains)

Front 1

Gel-like mass of bacterial colonies

Back 1

Bacterial Plaque

Front 2

Non-mineralized transparent film

Back 2

Bacterial Plaque

Front 3

Bacterial plaque accumulates and attaches on tooth surfaces every _____ hours following removal

Back 3

12-24 hours

Front 4

Bacterial plaque must be _____ removed by brushing/flossing

Back 4

Mechanically

Front 5

What are the two classifications of bacterial plaque?

Back 5

Supragingival and Subgingival

Front 6

What causes gingivitis/periodontal disease?

Back 6

Bacterial Plaque

Front 7

What is bacterial plaque responsible for? (3 things)

Back 7

1) Gingivitis/Periodontal disease 2) Dental caries 3) Calculus formation

Front 8

Plaque formation have how many stages?

Back 8

3

Front 9

Acquired pellicle is what stage?

Back 9

Stage 1

Front 10

Bacterial colonization is what stage?

Back 10

Stage 2

Front 11

Plaque ages is what stage?

Back 11

Stage 3

Front 12

Translucent tenacious film is found in what stage?

Back 12

Stage 1

Front 13

Acquired pellicle is derived from ______

Back 13

Saliva

Front 14

Acquired pellicle is formed within _____ after teeth are thoroughly cleaned with an abrasive

Back 14

Minutes

Front 15

Bacteria attaches to the _____ to form bacterial colonies

Back 15

Pellicle

Front 16

MS stands for

Back 16

Mutans streptococci

Front 17

Initial acquisition of MS occurs approximately _____ "Window of infectivity"

Back 17

26 months

Front 18

As the bacteria ages, the type of bacteria within the plaque ______

Back 18

Changes

Front 19

Loosely adherent mass of bacteria and food debris

Back 19

Materia alba

Front 20

This is less adherent than plaque

Back 20

Materia alba

Front 21

Materia alba forms on ____ of bacterial plaque

Back 21

Top

Front 22

Materia alba is ____ to ____ white in color/ resembles cottage cheese

Back 22

white to yellow white

Front 23

Mineralized bacterial plaque

Back 23

Calculus

Front 24

Hard, tenacious deposit that forms on teeth, removable appliances and fixed appliances

Back 24

Calculus

Front 25

Mineralization of dental calculus can occur as early as ___ to ____ hours

Back 25

24 to 48

Front 26

Average time for mineralization of calculus is about ____ days with a range from 10 to 20 days

Back 26

12 days

Front 27

Significance of Calculus: Rough surface provides a

Back 27

Safe haven for collection of bacterial plaque

Front 28

Significance of calculus: Holds bacterial plaque against gingival tissue causing _______

Back 28

Inflammation

Front 29

Significance of calculus: Bacterial plaque in contact with pocket tissue promote ____ and ____

Back 29

Gingivitis and Periodontitis

Front 30

Where is supragingival calculus located?

Back 30

Above gingival margin

Front 31

What type of calculus resemble tooth in color or may be stained by food or tobacco products?

Back 31

Supragingival calculus

Front 32

Sites closest to _____ glands accumulate heaviest supra calculus

Back 32

Salivary

Front 33

______ of mandibular anteriors and _____ of maxillary molars accumulate heaviest supra calculus

Back 33

Linguals, Facials

Front 34

Subgingival calculus is darker than supragingival calculus because ________

Back 34

it is stained by blood pigments

Front 35

Subgingival calculus ranges from light to dark shades of _____,____, and _____

Back 35

Brown, Green, Black

Front 36

These types of stains cannot be removed by scaling/polishing

Back 36

Intrinsic

Front 37

Examples of extrinsic stains include: (4 things)

Back 37

1) Yellow stain 2) Green stain 3) Tobacco stain 4) Other brown stains

Front 38

Predisposing factors for green stains include: (3 Things)

Back 38

1) Bacterial plaque 2) Materia alba 3) Food debris

Front 39

_______ areas often found beneath green stain due to cariogenic plaque

Back 39

Demineralized

Front 40

Repeated use of stannous fluoride can cause ______

Back 40

Brown stain

Front 41

Chlorhexidine and alexidine are examples of what?

Back 41

Anti-plaque agents

Front 42

Causes of intrinsic stains are (3 things)

Back 42

1) Pulp disease 2) Tetracycline antibiotics 3) Imperfect tooth development

Front 43

Tetracycline may be transferred to fetus in the ______ of pregnancy

Back 43

Third trimester

Front 44

Teeth erupt with white spots or pits

Back 44

Enamel hypoplasia

Front 45

Hypomineralization of enamel

Back 45

Fluorosis

Front 46

Results from ingestion of excessive fluoride from drinking water

Back 46

Fluorosis

Front 47

Teeth erupt with white spots or areas that become discolored from food pigments

Back 47

Fluorosis