Finishing And Polishing

Front 1

True or false? A smooth polished surface is more likely to accumulate acids and plaque which may encourage galvanic action on the surface

Back 1

False

Front 2

Amalgam finishing burs are made of this material instead of carbide like those used to prepare cavities

Back 2

Plain steel

Front 3

Are these criteria examples of finishing or polishing exhibits margins that are flush with adjacent tooth surface major anatomical contours are consistent with surrounding tooth structures. The occlusal is even with other teeth and surface is smooth with no deep scratches

Back 3

Finishing

Front 4

True or false evidence suggests that polishing of high copper amalgams is unnecessary

Back 4

True

Front 5

Final finishing and polishing of amalgam should not be done until the amalgam has reached its final set. Approximately how long after it has been placed and carved

Back 5

24 to 48 hours

Front 6

Finishing and polishing of amalgam restorations may assist in the maintenance of periodontal health by reducing rough surfaces that irritate adjacent gingival and contribute to increasing plaque accumulation true or false

Back 6

True

Front 7

Finishing discs are most helpful on what surfaces

Back 7

Broad smooth surfaces such as class 5

Front 8

If a contact is too tight, it may present the potential for mechanical irritation from floss being forced through. The contacts may tear the floss or

Back 8

May frustrate the patience so that he or she does not floss at all

Front 9

It is best to use this speed and this type of pressure to smooth the occlusal margins of a new restoration

Back 9

Medium speed and light pressure

Front 10

Over contoured under carved restorations king and contribute to periodontal disease to a much lesser degree than under contoured and overcarved restorations would true or false

Back 10

False

Front 11

Over polishing or improper polishing techniques may allow the restoration to overheat and bring mercury to the surface. This will leave a very shiny surface that is less susceptible to corrosion. Is all of this true? All of this false or is half true half false half false half true

Back 11

The first sentence is true and the second sentence is false

Front 12

Premature finishing and polishing will cause these two things to happen

Back 12

Weekend the restoration and disturb the crystalline structure of the amalgam

Front 13

Proper finishing and polishing can help to prevent amalgam deterioration true or false

Back 13

True

Front 14

Submarginal areas of enamel equaling________mm can be eliminated with a______________

Back 14

0.2 mm/white stone

Front 15

What is the correct order when using impregnated polishing systems?

Back 15

Brownie/ greeny/ super greeny

Front 16

What will happen if we use our finishing discs out of order such as the fine then medium then course?

Back 16

We will fail to remove the deep scratches left by coarsest abrasives

Front 17

What would be an acceptable system to use in place of the pumice/ tin oxide system of polishing?

Back 17

Impregnated cups and points

Front 18

When using hand instruments such as amalgam knife and file which is used first

Back 18

Amalgam knife

Front 19

This is done to obtain a smooth shiny luster on the surface of the amalgam so that it is easier to keep clean

Back 19

Polishing

Front 20

____________amalgam restorations involve removing marginal irregularities, defining anatomical contours and smoothing the surface roughness of the restoration

Back 20

Finishing

Front 21

If you have a significant submarginal area greater than 0.2 mm in the box of an MO restoration on tooth number 13, it is best to do what next

Back 21

Replace the restoration

Front 22

These stones work well to removing areas of excess amalgam when necessary.

Back 22

Green stones

Front 23

What time frame represents amalgam that has reached its final set?

Back 23

24 to 48 hours

Front 24

With regards to an older restoration, will it take longer to finish and polish or less time to finish and polish

Back 24

It will take longer to finish and polish

Front 25

What is done to obtain a smooth shiny luster on the surface of amalgam so that it is easier to keep clean?

Back 25

Polishing

Front 26

Amalgam is placed into a cavity preparation using the minimum of

Back 26

Two increments of amalgam no matter how small the prep is.

Front 27

Proper condensing is important because it increases the strength of the amalgam, it reduces residual mercury and it__________________

Back 27

Adapt samalgam to the walls and margins

Front 28

What is the amount of enamel that is acceptable for removal with a stone? In the process of finishing More than this amount, the restoration should be replaced

Back 28

0.2 mm

Front 29

two reasons Why is it important to condense the alloy into the prep immediately after titration?

Back 29

It prevents voids in the amalgam. It allows each layer to bond together

Front 30

What shape of Burr is used for narrow areas such as embrace your areas and deep grooves on the occlusal surface

Back 30

Flame shape bur

Front 31

In the finishing process, what is used for bulk gross reduction?

Back 31

Stones

Front 32

True or false and unpolished amalgam may encourage galvanic action on the surface

Back 32

True

Front 33

What shape bar is used for defining fossa?

Back 33

Round

Front 34

It is important to overfill the cavity prep because it helps eliminate voids and adapts the amalgam to the margins. It allows removal of residual mercury and what else?

Back 34

It helps properly cover the cable surface margins

Front 35

True or false? The amalgam knife is used AFTER the file to create a smooth finish that extends apical to the gingival cable surface margin were access is a problem

Back 35

False always use the amalgam knife first

Front 36

Finishing disc can be adapted along broad smooth surfaces that have good access, true or false

Back 36

True

Front 37

What is used to eliminate a slightly submarginal area of a restoration?

Back 37

Whitestone

Front 38

True or false? We need to consider very carefully which restorations we complete the finishing and polishing procedures on because polishing surfaces are more likely to develop a tarnish appearanced over time

Back 38

False surfaces are less likely to be tarnished over time

Front 39

Finishing amalgam restorations involves removing marginal irregularities defining anatomical contours and does this

Back 39

Smoothing surface roughness

Front 40

Specifically, what brings mercury to the surface during finishing, causing a doll surface that is more susceptible to corrosion

Back 40

H eat

Front 41

Which will contribute to a greater degree deteriorating periodontal health

Back 41

Over contoured undercarved restorations

Front 42

What burr is used to for defining fossa

Back 42

A round bur

Front 43

Finishing amalgam restorations involves

Back 43

Removing marginal irregularities defining anatomical contours smoothing surface roughness