Unit 3 part 2 Flashcards Preview

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Flashcards in Unit 3 part 2 Deck (38)
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1

How longer after acid ingestion does it clear from the mouth?

20 min

2

Fluoride is considered a -------- agent?

Bacteriostatic

3

In smooth surface caries the disease apex is pointing towards the?

Occlusal surface

4

In P&F caries the disease apex is pointing towards the?

DEJ

5

Streptococcus Mutan bacteria covert ------ to -------

Food (sugar)
Lactic acid

6

What forms the sticky matrix of dental plaque?

Dextrans

7

Outer surface caries is termed -------- caries?

Incipient

8

Once caries is through enamel it spreads ---?

Laterally

9

Endogenous means -------- and causes ------ staining?

Comes from within
Intrinsic

10

What is the most prevalent cause of intrinsic staining?

Tetracycline

11

Tetracycline has an affinity for what tooth forming structure?

Hydroxyapatite crystals

12

What people shouldn't take tetracycline?

Pregnant women
Kids under 12

13

------- ppm is normal fluoride level in water?

0.7

14

Fluorosis occurs when concentration of fluoride exceeds -------ppm?

5

15

Everyone has an ------- whiteness ability?

Inherent

16

Blood pigments come from leaking of ------ from ----- ------ entering into the dentin all tubules?

RBC
Pulpal vessels

17

---------- pigments cause extrinsic stains?

Exogenous

18

What are the 2 common types of extrinsic stains?

Plaque
Calculus

19

Brown stains come from?

Coffee
Tea
Tobacco

20

Some black, brown, green, and orange stains come from ------ ------?

Chromogenic bacteria

21

--------- mouth rinse can cause brown staining of plaque?

Chlorhexidine

22

What tooth is most often missing?

Wisdom teeth

23

Failure of initiation of tooth development results in?

Complete Anodontia

24

Partial Anodontia or --------- often affects --- teeth only?

Oligodontia
Permanent

25

At least 1 wisdom tooth is missing in -----% of population?

25

26

What is the 2nd tooth to be congenitally missing?

MX lateral

27

---------- usually is a result of a delay in the eruption of permanent dentition?

Pseudoanodontia

28

What baby tooth is most often to ankylos?

Molar

29

Supernumerary teeth are most often located?

MX midline
3rd molar area
Canine area

30

A peg lateral is a name of a tooth in the ------- category

Microdontia