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DEN4455 Wk 14

Authored by Tonia Peachman

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University

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DEN4455 Wk 14
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30 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

What am I?

a pigtail explorer

a Wiland carver

a T3 carver

Answer explanation

This instrument is OFTEN mistaken for the Wiland carver - look carefully at the working end.

How do explorers differ from carvers?

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

What am I used for ?

scoop out diseased tooth structure

carver newly placed amalgam

shape composite materials

burnish a matrix band

Answer explanation

This instrument is OFTEN mistaken for the spoon excavator

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is NOT true?

The universal retainer holds the matrix snugly in position.

The outer knob of the universal retainer secures the matrix band when tightened.

The universal retainer is most often positioned in on the lingual of the tooth of operation.

The inner knob of the universal retainer can adjust the circumference of the matrix band.

Answer explanation

The retainer is most often seated on the buccal of the operative tooth.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of rotary instrument shank is placed into a high-speed handpiece?

straight

friction-grip

latch-type

curved

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All of the following are uses for a low-speed handpiece except:

removal of old or faulty restorations

finishing and polishing restorations

root canal treatment

coronal stain removal

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The 3 basic parts of a rotary instrument are:

handle, shank & working end

shank, neck & head

neck, head & handle

shank, neck & working end

Answer explanation

Media Image

1: head

2: neck

3: shank

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A ________-shaped diamond rotary instrument provides access to the pulp chamber.

cylinder

flame

wheel

round

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