Chapter 35 + 36

Question 1

Rubber dam clamps

Answer 1

#12A molars in quad 2 and 4
#13A molars in quad 1 and 3
#0,1,2A premolar clamps all quads 
#8 molars in all quads 
#14 molars in all quads 
#212 butterfly - anterior usually during endodontics

Question 2

Types of isolation

Answer 2

Cotton roll
Dry angle
Dental dam

Question 3

Advantages and disadvantages of cotton rolls

Answer 3

Advantages

1. Easy to apply
2. No additional equipment needed
3. Available in many sizes and very flexible

Disadvantages

1. Doesn’t provide complete isolation
2. Doesn’t protect patient from aspiration
3. If removed improperly it can rip the oral mucosa

Question 4

Hole sizes

Answer 4

1 - mandibular anteriors 
2 - maxillary anteriors 
3 - premolars
4 - molars
5 - clamped

Question 5

Aspirate

Answer 5

To draw back or to draw within

Question 6

Bow

Answer 6

Rounded part of the clamp that extends through the dental dam

Question 7

Exposed

Answer 7

Pertaining to selected teeth visible through the dam

Question 8

Invert

Answer 8

To reverse the position, order, or condition. Inside out or upside down

Question 9

Isolated

Answer 9

Pertaining to selected teeth visible through the dam

Question 10

Jaws

Answer 10

Part of a clamp that is shaped into four prongs to help stabilize the clamp on the tooth

Question 11

Malaligned

Answer 11

Displaced out of line.

Question 12

Septum

Answer 12

Dental dam material located between the holes of the punched dam

Question 13

Stylus

Answer 13

Sharp pointed tool used for cutting

Question 14

Universal

Answer 14

The same clamp that can be placed on the same type of tooth in the opposite quadrant

Question 15

Winged clamp

Answer 15

Type of dental dam clamp that has extensions to help retain the dental dam

Question 16

Bur

Answer 16

A steel or tungsten carbride rotary cutting instrument

Question 17

Console

Answer 17

Freestanding cabinet that holds contents or control devices such as the laser handpiece

Question 18

Dental hand piece

Answer 18

Used for holding rotary instruments

Question 19

Flutes

Answer 19

Blades in the working end of a finishing rotary instrument that resemble pleats

Question 20

Laser

Answer 20

Fibre optic cable that produces a laser light

Question 21

Mandrel

Answer 21

Metal shaft on which a sandpaper disc or other abrasive materials are mounted

Question 22

Rotary

Answer 22

Part of a device that rotated around an axis

Question 23

Torque

Answer 23

Twisting or turning force

Question 24

Ultrasonic

Answer 24

Referring to mechanical radiant energy of water and sound vibrations used to break down material or tissue

Question 25

When we’re rotary instruments introduced

Answer 25

1940

Question 26

When were diamond burs and tungsten carbide burs invented

Answer 26

1950

Question 27

The first dental hand piece was...

Answer 27

Belt driven

Question 28

Slow speed hand piece attachments

Answer 28

``` Contra angle Motor Straight attachment Prophy attachment Disposable prophy attachment ```

Question 29

Clinical uses for low speed

Answer 29

- Remove decay - Fine finishing of cavity preparation (inside the hole) - Finishing and polishing of restorations( old amalgam and composites) - coronal polishing and removal of stains (polishing teeth) - porcelain adjustments - root canal treatment

Question 30

Laboratory uses for low speed

Answer 30

- Trim and contour of temporary crowns - trim and reclining of removable partials and dentures - trim and contouring of orthodontic appliances

Question 31

Uses of the high speed hand piece

Answer 31

- removes decay - removes old restoration - reduction of a tooth for crown preparation - preparation of the outline and retention grooves for a new restoration - finishing and polishing of restorations - sectioning of a tooth during surgery

Question 32

Three parts of a rotary instrument

Answer 32

Shank - part that goes inside the instrument Head- part that touches the tooth Neck - part between the shank and head

Question 33

Other types of hand pieces available in dentistry

Answer 33

1. Ultrasonic- used for prophy and when activated the hand piece will spray out water 2. Laser- cautersizes soft tissue or vaporizes decay 3. Air abrasion/ micro etcher- removes stain and tooth decay 4. Lab- operates at 20000 provides greater torque

Question 34

Hand piece sterilization

Answer 34

1. wear ppes 2. use mild soap and water to clean debris from the head 3. Clean internal components of the hand piece according to manufactures instructions 4. Ensure that they are dry before being packaged 5. Wrap in the proper bag following manufactures instructions 6. Sterilize the hand piece according to the manufactures instructions 7. After sterilization wow the light post of the fiberoptic hand piece with an alcohol swab 8. Before attaching the sterile hand piece flush the air water lines on the handpiece hose for 30-60 secs

Question 35

Finishing burs

Answer 35

Mainly used for the finishing and polishing of composites The most common are round, tapered, flame shaped Gold shank

Question 36

Pear

Answer 36

Initial entry 330

Question 37

Inverted cone

Answer 37

Removes decay 331/2

Question 38

Straight fissure cross cut

Answer 38

Initial entry know as 555-557

Question 39

Straight fissure plain cut

Answer 39

Initial entry 55 56

Question 40

Tapered fissure plain cut

Answer 40

Initial entry 169 170

Question 41

Tapered fissure cross cut

Answer 41

Initial entry 699 703

Question 42

End cutting bur

Answer 42

Used for initial entry 957

Question 43

Burs are needed in restorative dentistry for the following procedures:

Answer 43

1. Tooth preparation 2. Removing decay 3. Finishing cavity walls 4. Finishing restoration surfaces 5. Drilling out old filling 6. Finishing crown preparation 7. Separating crown and bridges 8. Adjusting and correctly acrylic temporary crowns