Chapter 3

Question 1

Arkansas Stone

Answer 1

A sharpening stone used for final sharpening of an instrument that is already close to sharpness

Question 2

Bur

Answer 2

A type of cutter used i a dental handpiece

Question 3

Calculus removal forceps

Answer 3

a dental instrument that allows for quick removal of large pieces of calculus

Question 4

Conical stone

Answer 4

a sharpening stone that is used to provide a final sharpening to the instrument by working on its face

Question 5

Curette

Answer 5

a dental instrument used for the removal of calculus both supragingivally and subgingivally

Question 6

Explorer

Answer 6

a hand instrument used to detect plaque and calculus. They are also used to explore for cavities and check for exposed pulp chambers

Question 7

Flat stone

Answer 7

a stone used for sharpening dental equipment

Question 8

Handle

Answer 8

the part of the hand instrument that is grasped. handles come in a variety of round, tapered, and hexagonal shapes

Question 9

High-speed handpiece

Answer 9

a handpiece used for cutting teeth in extractions and making access holes into the teeth in root canal therapy

Question 10

India Stone

Answer 10

a sharpening stone used for “coarse” sharpening of an overly dull instrument or for changing the plane of one or more of the sides of the instrument

Question 11

Low-speed Handpiece

Answer 11

a handpiece used for polishing with prophy angles and for performing other dental procedures with contra angles

Question 12

Periodontal probe

Answer 12

an instrument in dentistry primarily used to measure pocket depths around the tooth in order to establish the state of health of the periodontium

Question 13

Piezoelectric

Answer 13

an ultrasonic scaler that uses crystals in the handpiece to pick up the vibration. These units have a wide, back and forth tip motion

Question 14

Pigtail Explorer

Answer 14

A curved explorer that allows the operator to easily avoid touching the parts of the tooth that are not being explored

Question 15

Power scaler

Answer 15

a scaler that converts electric or pneumatic energy into a mechanical vibration. When the power scaler is placed against the calculus, the vibration shatters it, freeing it from the tooth surface

Question 16

Rotary scaler

Answer 16

A type of scaler that is discouraged due to the fact that it can easily damage the tooth. also the burs must be replaced often because they become dull very quuickly

Question 17

Scaler

Answer 17

a dental instrument used for scaling calculus from the crown surface. these instruments are particularly useful in removing calculus from arrow but deep fissures such as that located on the buccal surface of the fourth premolar

Question 18

Shank

Answer 18

the part of the hand instrument that joins the working end with the handle

Question 19

Shepherd’s hook

Answer 19

the most commonly found explorer

Question 20

Sonic Scaler

Answer 20

an ultrasonic scaler that operates at 6000 cycles per second with a 0.5-mm amplitude and an elliptic, figure-of-eight motion

Question 21

Terminal shank

Answer 21

the part of the shank that is closest to the working end of the hand instrument

Question 22

Three-way syringe

Answer 22

part of the dental unit that creates a water spray and an air spray. The water spray is used for irrigating a tooth surface and clearing away prophy paste, tooth shavings, and other debris. The air spray can be used to dry the field

Question 23

Torque

Answer 23

the ability to overcome resistance to movement

Question 24

Turbine

Answer 24

the internal portion of the high-speed handpiece that spins at an extremely high speed

Question 25

Ultrasonic ferroceramic rod

Answer 25

an ultrasonic device that vibrates at 42,000 cycles per second. all sides of the tip are equally active

Question 26

Ultrasonic instrument

Answer 26

dental instrument that converts energy from a power source into a sound wave

Question 27

Ultrasonic metal strips/stacks

Answer 27

ultrasonic devices that vibrate at 18,000, 25,000, and 30,000 cycles per second. The amplitude of tip movement is between 0.01 and 0.05 mm, which is extremely narrow

Question 28

Working end

Answer 28

the part of the hand instrument that comes in contact with the tooth