Chapter 7 - Rubber Dam

Question 1

the __ of operating field isolation are moisture control, retraction, and harm prevention

Answer 1

goals

Question 2

• a dry lean field
• improved access/visibility
• potentially improved properties of dental material
• protect to patient and dr.
• operating efficiency

Answer 2

advantages of rubber dam iso

Question 3

the rubber dam __ consists of 4 prongs and two jaws connected by a bow

Answer 3

retainer

Question 4

The __ is used to anchor the dam to the most posterior tooth to be isolated
also used to retract gingival tissue

Answer 4

retainer

Question 5

retainers belong to which tooth:
W56
W7
W8
W4
W2
W27

Answer 5

W57-most molar anchor teeth

W7-mandibular molar anchor

W8-maxillary molar anchor

W4-most premolar anchor

W2-small premolar anchor

W27-terminal mandibular molar anchor teeth requiring preparations involving the distal surface

Question 6

another name for retainer

Answer 6

clamp

Question 7

The ___ are designed to provide extra retraction of the
rubber dam from the operating field and to allow attachment
of the dam to the retainer before conveying the retainer (with
dam) to the anchor tooth

Answer 7

wings of retainer

Question 8

proximal cavorsurface margin to axial wall

Answer 8

axial depth

Question 9

how do we measure axial wall depth

Answer 9

hatchet width

Question 10

occlusal cavosurface margin to gingival floor

Answer 10

pulpal depth

Question 11

basic 6 principles of cavity preparation

Answer 11

1. outline form
2. resistance form
3. retention form
4. convenience form
5. finishing
6. debridement

Question 12

the shape of the cavity prep

perimeter of the tooth prep in width, length, and depth

Answer 12

outline form

Question 13

factors governing __ form;
~conservation of tooth structure
~location and extent of carious lesion
~position of pit and fissure

Answer 13

outline form

Question 14

__ form allows the remaining tooth structure and the restoration to withstand forces that are principally directed towards the long axis of the tooth

Answer 14

resistance form

Question 15

__ form prevents dislodgement of the restoration by uplifting or tipping forces

Answer 15

retention form

Question 16

__ form allows sufficient access to the cavity to facilitate visibility and instrumentation of the cavity prep and the insertion of the restorative material

Answer 16

convenience form

Question 17

__ form is to achieve the best marginal seal, the cavorsurface margin to prevent jagged or rough outline

Answer 17

finishing form

Question 18

__ form is rinsing the cavity with air/water syringe and high suction evacuation

Answer 18

debridement

Question 19

free the cavity from moisture (1/6 of the principles of cavity prep)

Answer 19

debridement

Question 20

when the cutting edge and the blade are not 90 degrees

Answer 20

use 4 naming code

Question 21

when cutting edge and the blade are at 90 degree

Answer 21

use 3 naming code

Question 22

winged retainer or __ retainer

Answer 22

anterior

Question 23

wingless retainer will have the letter __ to it, circled in __

Answer 23

W circled in red

Question 24

__ retainers don’t have a letter W designated to them

Answer 24

wing retainers

Question 25

__ retainers have a letter designated to them and their prongs are facing gingical to retract the gingiva

Answer 25

active retainers

Question 26

ball gauge dimensions

Answer 26

small end is 1.0mm in diameter

large end is 1.5mm in diameter