Instrumentation & Nomenclature

Question 1

What is this?

Answer 1

Dental Mirror/Mouth Mirror

Question 2

What are the functions of dental mirrors?

Answer 2

Observing tooth using indirect vision
Reflecting light onto tooth for examination
Retracting tissue

Question 3

What is this?

Answer 3

Dental explorer/ Sickle Probe/ Dental probe

Question 4

What are the functions of sickle probes? What are they also known as?

Answer 4

Dental explorer

To check margins of cavities

To check interface between a restoration and the tooth surface (cavosurface margin)

Question 5

A new dentist is using a sickle prove to check a tooth for caries. What should he be aware and careful of?

Answer 5

Do not push into an area where enamel caries is suspected. It can cause cavitation of the enamel surface; or damage; that may impair remineralization

Question 6

What is this?

Answer 6

Flat plastic instrument

Question 7

What is the function of a flat plastic instrument?

Answer 7

Insertion, placement and shaping of plastic restorative materials

Question 8

What are these?

Answer 8

Composite Insertion Instruments

Question 9

What are these?

Answer 9

Tweezers/College Pliers

Question 10

What are these? What are they used for?

Answer 10

Scissors

Cutting and trimming items you work with, such as interdental sections of dental dam during removal

Question 11

What are these?

Answer 11

Periodontal probes

Question 12

What are the function of these?

Answer 12

they have gradations in milimetres

Used to measure:

• Depth of periodontal pockets for determining periodontal disease
• Length of cutting part of bur
• Depth of cavity and cavity dimensions
• Dimensions of soft tissue lesions

Question 13

What are some hand cutting instruments?

Answer 13

Spoon excavators
Gingival margin trimmers
Chisel
Hatchet

Question 14

What is this?

Answer 14

Chisel, part of hand cutting instruments

Question 15

What are these?

Answer 15

Mesial and Distal Gingival margin trimmers, part of hand cutting instruments

Question 16

What is this?

Answer 16

Spoon Excavator, part of hand cutting instruments

Question 17

What is this?

Answer 17

Hatchet, part of hand cutting instruments

Question 18

What are to instruments you would use for mixing?

Answer 18

Cement Spatula
Dycal Applicator

Question 19

What is this

Answer 19

Cement spatula

Question 20

What is this?

Answer 20

Dycal Applicator

Question 21

What are the 3 parts of a hand instrument?

Answer 21

Blade, Shank, Shaft

Question 22

Label

Answer 22

Question 23

What are instruments used for amalgams?

Answer 23

Condesner/Plugger
Half Hollenback carver
Amalgam Carrier and Amalgam Well
Amalgam Carrier and Silicone Cup

Question 24

Answer 24

Condenser/plugger

for amalgams

Question 25

What is this?

Answer 25

Half Hollenback carver , for amalgams

Question 26

A hatchet has a 3-unit pattern of 10 - 7- 14

What does this mean?

Answer 26

blade width of 1 mm

blade length of 7 mm

blade angle of 14 centigrade. This is the angle with regards to the axis of the handle.

Question 27

When do you see a 4-unit pattern?

Answer 27

When the cutting edge is at an angle other than 90 degrees to the blade length

Question 28

The distal marginal trimmer as this formula : 12-95-10-12

What does it mean?

Answer 28

1.2 mm blade width
95 degrees centigrade cutting edge and long axis of shaft
10 mm blade length
14 centigrade blade angle from axis of handle/shaft

Question 29

What is this?

Answer 29

High-speed handpiece

Question 30

What is this?

Answer 30

Slow-speed handpiece

Question 31

What type of hand piece has different angles and gear ratios?

Answer 31

Slow-speed

Question 32

What are the materials dental burs are generally made from?

Answer 32

Steel, tungsten carbide (stainless steel shank), or diamond (stainless steel shank)

Question 33

What are the 3 shank types of dental burs?

Answer 33

Friction Grip (turbine bur)
Latch-type or contra-angle/right angle type
Handpiece/Straight burs

Question 34

What type of grip is preferred for hand pieces?

Answer 34

Modified pen grip