Ch.35

Question 1

The air driven turbine dental handpiece was introduced in the :

Answer 1

1950’s

Question 2

Air brasion handpieces are most effective if used for :

Answer 2

External stain removal.

Question 3

The most frequently used device in restorative dentistry is the:

Answer 3

Dental handpiece

Question 4

What handpiece can be used with a variety of attachments?

Answer 4

Slow speed handpiece

Question 5

What handpiece does the prophy angle attach to ?

Answer 5

Slow speed

Question 6

A low speed motor operates at __________ rpm

Answer 6

10,000-40,000

Question 7

The high speed handpieces reaches speeds up to _______ rpm.

Answer 7

450,000

Question 8

The high speed handpieces uses __________ burs

Answer 8

Friction grip.

Question 9

The __________ handpiece supplies water coolant because it can generate enough heat to cause pulpal damage.

Answer 9

High-speed.

Question 10

The ultrasonic handpiece is used for _______.

Answer 10

Scaling

Question 11

The reasons Dr might use a laser handpiece is :

Answer 11

Painless no anesthesia necessary

Question 12

What particles are used for the air abrasion technique?

Answer 12

Aluminum oxide

Question 13

What handpiece has the greatest torque? (Twisting force)

Answer 13

Laboratory handpiece

Question 14

A dental handpiece is identified as a ________ instrument that ______ be sterilized before use.

Answer 14

Critical ; Must

Question 15

When cleaning the handpiece you should;

Answer 15

Carefully follow manufactures instructions

Question 16

A friction grip shank :

Answer 16

Is short and smooth

Question 17

Since the 1940’s ___________ burs have been used for cavity preps.

Answer 17

Tungsten carbide

Question 18

What bur removes caries during tooth prep?

Answer 18

Round

Question 19

All rotary instruments that have a sharp cutting head are called?

Answer 19

Bur

Question 20

Finishing burs have ______ blades on the working end

Answer 20

More

Question 21

What diamond bur is most often used to gain pulpal access?

Answer 21

Round

Question 22

What year were rotary instruments introduced?

Answer 22

1940’s

Question 23

The two common dental handpieces are?

Answer 23

Low and high speed.

Question 24

The 3 basic parts of a rotary instrument are:

Answer 24

Shank, neck, head

Question 25

Lab burs have a ________ shank and ________ head.

Answer 25

Longer : larger

Question 26

The most varied category of rotary instruments are :

Answer 26

Abrasive rotary (diamond)

Question 27

All of the following are functions of a low speed motor except:

Answer 27

Removal of old or faulty restorations

Question 28

What’s the preferred method of handpiece sterilization

Answer 28

Autoclaving

Question 29

To adjust porcelain you should use:

Answer 29

Slow speed

Question 30

What type of shank is placed into a straight attachment?

Answer 30

Long straight

Question 31

A #557 bur is a _________ used for ________.

Answer 31

Straight Fissure crosscut Forming internal walls of prep.

Question 32

What bur helps provide angles to the walls of the cavity prep? (Surgical bur also)

Answer 32

#699

Question 33

Diamond burs are ___________.

Answer 33

Inexpensive.

Question 34

This is a metal shaft that the polishing discs are attached to? (you don’t want to lose it)

Answer 34

Mandrel

Question 36

What bur is most commonly used in a laboratory?

Answer 36

Acyrilic bur

Question 37

You have to wipe off the light on the handpiece because:

Answer 37

The light will be dimmed.