Must know for Phase 1 Flashcards

1
Q

What is a noble metal?

A

Metal that resists tarnish and oxidation (Gold, Platinum, palladium) NOT SILVER

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2
Q

What is a precious metal?

A

Metal that is worth money (Gold, Platinum, and Silver)

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3
Q

What is an alloy metal?

A

A mix of different metals to improve strength or resist tarnish

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4
Q

What are A-Delta nerve fibers?

A

Larger diameter, myelinated, and conduct nerve impulses more rapidly. Rapid sharp pain (reversible pulpitis)

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5
Q

What are C-Delta nerve fibers?

A

Smaller diameter, UNmyelinated, conduct impulses more slowly. Dull aches (late pulpitis)

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6
Q

What are the 5 successful dentinal defense mechanisms?

A
  1. Pain (sensible dentin)
  2. Pulpitis (reversible)
  3. Blockage of tubule with material from dentinal fluid or odontoblast
  4. Mineralization of material at exposed dentinal tubule surface and apertures
  5. Formation of sclerotic or tertiary (reparative) dentin at the site
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7
Q

What are the 2 types of tertiary dentin?

A
  1. Reactionary-formed from pre-existing odontoblast
  2. Reparative- formed from newly differentiated odontoblast due to death of original
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8
Q

What plane is this CT image?

A

Transverse (coronal)

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9
Q

What plane is this CT image?

A

Sagittal

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10
Q

What plane is this CT image?

A

Dorsal (Axial)

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11
Q

Classify this carious lesion according to GV black

A

Class 1 - most common in dogs - on occlusal surfaces. “Pits and tissues”

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12
Q

Classify this carious lesion according to GV black

A

Class 3 - lesions of the proximal surface of the incisor or canine tooth

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13
Q

Classify this carious lesion according to GV black

A

Class 2 - lesions of the proximal surfaces of premolars and molars

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14
Q

Classify this carious lesion according to GV black

A

Class 4- lesions a the proximal surface of an incisors or canine tooth ash involves an incisal edge

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15
Q

Classify this carious lesion according to GV black

A

Class 5 - lesions on labial, buccal, or lingual surface of any tooth

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16
Q

Classify this carious lesion according to GV black

A

lesions of the incisor edge of cusp tip

17
Q

How many walls does each defect have?

A

A. 3
B. 2
C. 1

18
Q

Amount of deformation that is recovered instantaneously when an externally applied force or pressure is reduced or eliminated.

A

Elastic Strain

19
Q

Irreversible deformation that remains when the externally applied force is reduced or eliminated.

A

Plastic strain

20
Q

_______ is when a force acts on a constrained body, the body resists the force. This internal reaction is equal in magnitude and opposite in direction to the applied external force.

A

Stress

21
Q

the ability of a liquid to maintain contact with a solid surface, resulting from intermolecular interactions when the two are brought together.

A

Wetability

22
Q

With __________ retention, bonding agents microscopically interlock in enamel porosities, dentinal tubules, or other microscopic anatomy.

A

Micromechanical

Example: Light cured composites and bonded amalgam restorations

23
Q

With _________ retention, crystal is formed between the ionomer and the minerals within the enamel and dentin

A

Chemical

Example: Glass ionomer

24
Q

What are the 4 Major Composite Resin (CR) Components

A
  1. Inorganic fillers (quartz/glass)
  2. Organic resins (glue)
  3. Coupling agents (link between glass/glue)
  4. Initiator-accelerator systems
25
Q

What is the chemical responsible for photo initiation in visible light cure materials?

A

Camphorquinone

26
Q

What is the chemical responsible for photo initiation in UV light cure materials?

A

Benzoin methyl ether

27
Q
A