Module 20 ch. 21/44

Question 1

Discolorations of teeth happen in what 3 ways

Answer 1

adheres to the surfaces
is in calculus/biofilm
incorporated in tooth/restorative structure

Question 2

Extrinsic Stain occur on the _____ surface and ___ be removed.

Answer 2

external

may

Question 3

Intrinsic stains occur ______ substance and _____ be removed.

Answer 3

inside tooth

cannot

Question 4

What stains develop from sources outside the tooth.

Answer 4

Exogenous

Question 5

Endogenous stains develop _______ the tooth and are always the ______ type

Answer 5

within

intrinsic

Question 6

Yellow stain is associated with?

Answer 6

biofilm

Question 7

_____ stain has demineralization underneath it and _____ be scaled

Answer 7

Green

shouldn’t

Question 8

Green stain is mostly found on what surfaces

Answer 8

facial cervical 1/3 of MX anterior tooth

Question 9

Green stain results from oral ____, ____bacteria, and gingival _____

Answer 9

uncleanliness
chromogenic
hemorrhage

Question 10

What stain is highly retentive and forms along the gingival 1/3

Answer 10

Black-Line

Question 11

Black Line Stain follows contour of __ about ___ above the crest

Answer 11

gingiva

1mm

Question 12

Black-Line stain is most frequently on what surfaces

Answer 12

lingual/proximal of maxillary posterior

Question 13

Black Line stain is more commonly found in _____

Answer 13

females

Question 14

What stain appears light brown to dark leathery.

Answer 14

Tobacco stain

Question 15

A ____ sometimes __ stain forms on teeth in pellicle after repeated use of stannous fluoride

Answer 15

light brown

yellowish

Question 16

What chemotherapeutics can cause brown stain

Answer 16

Chlorhexidine

Alexidine

Question 17

What causes a dark mahogany almost black stain and is common in eastern countries

Answer 17

Betel Leaf

Question 18

What type of stains may be related to the period of tooth development.

Answer 18

Endogenous Intrinsic

Question 19

What stain is caused by an antibiotic and can be absorbed by the bones and teeth and can be transferred through the placenta.

Answer 19

Tetracycline

Question 20

What color is tetracycline stain

Answer 20

light green to dark yellow

gray-brown

Question 21

Color of tetracycline stain depends on?

Answer 21

dosage
length of time used
type of tetracycline

Question 22

Defective tooth development may result from ____ abnormality or ______ influences

Answer 22

genetic

environment

Question 23

What hereditary disease is seen when the teeth appear translucent or opalescent

Answer 23

Dentinogenesis imperfecta

Question 24

What hereditary disease is seen when the enamel is partially or completely missing and teeth are yellowish-brown to gray-brown

Answer 24

Amerlogenesis imperfecta

Question 25

_____ is when teeth erupt with white spots or with pits that can discolor

Answer 25

Enamel Hypoplasia

Question 26

What type of stains are inside the tooth but come from an outside source

Answer 26

Exogenous Intrinsic

Question 27

What types of exogenous stains can become Intrinsic

Answer 27

Tobacco | Green

Question 28

Polishing procedures can interrupt enamel _____

Answer 28

remineralization

Question 29

Can you use polishing agents on restorative materials?

Answer 29

NO

Question 30

What are the rules for using polishing agents

Answer 30

Light Pressure | Moist Agent

Question 31

Is stain removal recommended after gingival and periodontal treatments?

Answer 31

NO

Question 32

You should use _____ to polish if no unsightly stain is present

Answer 32

tooth paste

Question 33

The rate of abrasion is controlled by the _ and __ of the particles as well as the manner in which they are _____

Answer 33

hardness shape applied

Question 34

Enamel Dentin Cementum MOHS Hardness values

Answer 34

5 3. 0-4.0 2. 5-3.0

Question 35

__ shaped particles produce deeper grooves

Answer 35

irregular

Question 36

Many abrasives used are _ times harder than tooth surface

Answer 36

10

Question 37

Particles that fracture into smaller sharp-edged particles are _____ abrasive

Answer 37

more

Question 38

smaller particles are _____ abrasive

Answer 38

less

Question 39

You should use ___ agents and apply a rubber polishing cup using ____ speed and _____ touch

Answer 39

wet low light

Question 40

You should apply polishing paste at a ___ angle to the tooth

Answer 40

90

Question 41

Rubber polishing points can be used around ____, fixed ___ and in ___spaces

Answer 41

orthodontic bridges interproximal

Question 42

What slow speed attachment is used selectively and limited to occlusal surfaces

Answer 42

bristle

Question 43

The air-powder polisher should be kept in a constant ____ motion and _to_mm away from enamel

Answer 43

circular 4 5

Question 44

The spray is angled away from ____ and at a _____degree angle

Answer 44

gingiva | 90

Question 45

What is the MOHS hardness for Sodium Bicarbonate

Answer 45

2.5

Question 46

Advantages of air-powder polishing

Answer 46

less time ergonomically favorable generates no heat

Question 47

For anterior teeth the nozzle is at a ____ degree angle

Answer 47

60

Question 48

For posterior teeth the nozzle is at an ___ degree angle

Answer 48

80

Question 49

Air-powder polishing is contraindicated for patients with?

Answer 49

``` sodium restricted diet respiratory diseases (COPD) End-stage renal disease (Addisons/Cushings) Communicable infections Immunocompormised patients ```

Question 50

Air-powder polishing can't be done on ____, cements, and other _____ materials because it can cause _____

Answer 50

composite non-metallic pitting