Part 2 B (Section V)

Front 1

The term that describes the mechanical mixing of alloy and mercury

Back 1

Trituration

Front 2

What is the composition of amalgam?

Back 2

Mercury ,silver, tin, Copper and zinc

Front 3

What is a composition of alloy powder?

Back 3

Silver,tin, copper and zinc

Front 4

The consequence of the mercury mixing with tin in an amalgam that also results in excessive corrosion is known as

Back 4

Gamma 2

Front 5

Increased amounts of______ in amalgam can reduce problems with creep and gamma 2 phase

Back 5

Copper

Front 6

An amalgam alloy with a mix of different particle types is called ________

Back 6

Admixed or dispersion type of alloy

Front 7

Amalgam particles that are irregular in shape require more mercury and greater condensing forces. Best describes this type of alloy

Back 7

Conventional or lathe cut

Front 8

The higher percentage of Mercury in amalgam the________ the restoration

Back 8

Weaker

Front 9

The lower percentage of Mercury and an amalgam. The_________ the restoration

Back 9

Stronger

Front 10

What undesirable property is caused by bubbles of hydrogen from water due to moisture contamination

Back 10

Excessive delayed expansion

Front 11

This is the slow movement of an amalgam restoration under compressive forces over a period of time

Back 11

Creep

Front 12

How will adequate condensation pressure strengthen the final restoration? By eliminating ______ and __________excess mercury

Back 12

By eliminating voids and reducing excess mercury

Front 13

What is one function of a properly placed wedge , ________ of the matrix band to the tooth and prevent ___________

Back 13

Adaptation of the matrix band to the tooth to prevent overhangs

Front 14

When would an operator choose to use a secondary matrix strip?

Back 14

To compensate for extra space between the tooth and primary matrix

Front 15

When placing a matrix band, the small diameter of the loop is directed towards the

Back 15

Gingiva

Front 16

A wooden wedge should be placed from the

Back 16

Largest embrasure

Front 17

When using a toffelmyer retainer, the inter nut is turned clockwise too

Back 17

Make the loop smaller

Front 18

What could result if the EFDA placed a matrix band to snugly around a tooth with a classII preparation for an amalgam restoration

Back 18

Open or light contact areas

Front 19

These are recommendations from ___________ from Mercury hygiene 1) use the "no touch" technique when handling amalgam 2) The salvage of all amalgam scraps and stored underwater 3) work in a well ventilated space

Back 19

American dental association

Front 20

The term to describe a physical property occuring when dissimilar metals in the math mouth act like a battery upon contact, resulting in a discomfort for patient

Back 20

Galvanism

Front 21

When carving a class V amalgam restoration with a hollenbeck carver, the gingival margin is carved with the______ of the carver on the tooth surface

Back 21

Tip

Front 22

This term describes a space or void between a finished restoration and tooth at the cavi surface margin

Back 22

An open margin

Front 23

What do we call an area where the amalgam is below the cavo surface margin of the preparation?

Back 23

Sub marginal area

Front 24

Can an under contoured restoration be adjusted with finishing and polishing techniques? Yes or no?

Back 24

Yes

Front 25

What is the instrument of choice for removal of any occlusal excess in a class I amalgam restoration on number 29 during the occlusal check

Back 25

Cleoid discoid carver

Front 26

Armamentarium for placing condensing and carving a class v amalgam restoration include

Back 26

Basic setup. Amalgam condensers and hollen back carvers

Front 27

What can happen if one failed to condense amalgam into the mechanical retentive features of a restoration?

Back 27

Weekened retention of the restoration

Front 28

Where would the EFDA place the first layer of amalgam in a MO restorations on tooth number 18?

Back 28

Least accessible area

Front 29

What makes carving a class V amalgam restoration challenging

Back 29

There is reduced access to the gingival margin

Front 30

What instrument is used to create the occlusal embracer and shape the marginal ridge in a class 2 amalgam restoration?

Back 30

An explorer

Front 31

When condensing a class 2 cavity preparation condensing amalgam to the level of the_____ line angle before condensing the pulpal floor

Back 31

Pulpoaxial

Front 32

The number of increments required for a class v amalgam restoration are

Back 32

Depends of the size of the preparation

Front 33

When condensing an amalgam restoration, it is the goal of the EFDA too slightly_________ the restoration.

Back 33

Slightly overfill the restoration

Front 34

True or false? Any grooves present in existing enamel must be continued into the amalgam for a class 1. Occlusal amalgam restoration

Back 34

True

Front 35

You are about to begin restoration of a class III minimal depth amalgam cavity preparation. You observe the preparation and find it properly designed for maximum retention. Your next is..

Back 35

Cleaning and drying the preparation with a gentle flow of air

Front 36

An under contour class v restoration will cause

Back 36

Will increase plaque accumulation and recurrent decay

Front 37

Where should you condense the first increment of amalgam in a class V restoration?

Back 37

Retentive features

Front 38

And over extension or flash of restorative material at the cavo surface margin is indicated by a catch of the ________ moving from tooth to amalgam

Back 38

A catch of the explorer moving from tooth to amalgam

Front 39

What best defines a complex amalgam preparation?

Back 39

There is loss of one or more cusps

Front 40

How is a threaded retention pin secured in a complex amalgam restoration

Back 40

It is threaded or screwed into the Denton

Front 41

Tooth number 19 modb complex restoration is to be restored with amalgam. The overfill on the DB cusp should be

Back 41

Slightly higher occlusally then the neighboring cusps of the adjacent tooth

Front 42

You have just condensed a large modb complex amalgam tooth number 30 and you are ready to carve the facial surface which is over contoured. What is your instrument of choice?

Back 42

Hollenback Carver

Front 43

You are evaluating the occlusion on the restored DB cusp on number 19 modb complex, amalgam restoration. What is the occlusion criterion for the restored DB cusp

Back 43

The restored DB cusp should contact in centric occlusion if it is a supporting cusp