Exam 1 Flashcards
1
Q
Round Shaped Bur Heads (4)
A
- Initial entry into tooth
- Extension Prep
- Prep retentive features
- Carries Removal
2
Q
Pear Shaped Bur Heads (2)
A
- Amalgam and resin preps
2. Utility Bur
3
Q
Inverted Cone
A
- Placing Undercuts
4
Q
Straight Fissure
A
Amalgam Tooth Prep
Parallel Walls
5
Q
Tapered Fissure
A
Indirect restorations where divergent walls are preferred
6
Q
Blade Angles (3)
A
- Rake
- Edge
- Clearance
7
Q
Most important design characteristic of burs
A
Rake Angle
8
Q
Indices of Color (3)
A
- Hue
- Value
- Chroma
9
Q
Source-Related Factors
A
- Color Content
- Intensity
- Surroundings
- Glossiness
10
Q
Thermal Conductivity
A
How heat is transferred through a material by conductive flow
11
Q
Thermal Diffusivity
A
Rate at which a body w/ a nonuniform temp approaches equilibrium
12
Q
Thermal Expansion
A
Change of length per unint length of a material for a 1 degree C change in temp
13
Q
Why is oral environment conductive to corrosive attack?
A
- Wet
- Salty
- Acids/Biological Agents
- Warm
- Stresses
14
Q
Anode
A
- Surface where corrosion occurs
2. Oxidation (loss of e-)
15
Q
Cathode
A
- Surface where reduction rxn takes place
2. Reduction (consumes e-)
