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NDAP NAVDEN 102 Unit 4: Dental Materials > Lesson 4.1: Dental Materials > Flashcards

Lesson 4.1: Dental Materials Flashcards

1
Q

An alloy of silver, tin, copper, mercury, and zinc

A

Amalgam

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2
Q

Main or supporting ingredient

A

Base

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3
Q

Chemical accelerant without being consumed

A

Catalyst

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4
Q

Preserved or finished by a chemical or physical process

A

Cured

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5
Q

An acidic cutting process on a surface

A

Etching

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6
Q

A soothing colorless liquid made from clove oil

A

Eugenol

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7
Q

Capable of being shaped without being damaged

A

Malleability

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8
Q

The process of mixing

A

Trituration

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9
Q

The thickness of a liquid that impedes its flow

A

Viscosity

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10
Q

What effect does Eugenol have on pulpal tissue

A

Sedative Effect

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11
Q

TRUE OR FALSE:

Direct application of Eugenol to pulp tissue may cause necrosis

A

True
If Zinc Oxide-Eugenol is applied to the dentinal cavity, Eugenol is diffused through the dentin to the pulp, DO NOT directly apply it to the pulp

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12
Q

TRUE OR FALSE:

Zinc Oxide-Eugenol may be used under composite restorative material

A

False

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13
Q

Used as a liner or base under composite, amalgam, metal, and ceramic restorations

A

Glass Ionomer Base (Vitrabond)

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14
Q

TRUE OR FALSE:

Vitrabond liner may be used for direct pulp capping

A

False

Vitrabond liner is not recommended for direct pulp capping

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15
Q

Ratio of powder to liquid for Vitrabond

A

1 scoop of powder to 1 drop of liquid

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16
Q

Uses and characteristics of Calcium Hydroxide (Dycal)

A
  1. Pulp Protector
  2. Self-Curing
  3. May be used under any restorative material
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17
Q

Reinforced Zinc Oxide-Eugenol Composition

A

Intermediate Restorative Material (IRM)

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18
Q

TRUE OR FALSE:

Intermediate Restorative Material is temporary and may last up to one year

A

True

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19
Q

Amalgam Brands:

Mixing time for Tytin

A

4-5 seconds

20
Q

Amalgam Brands:

Mixing time for Dispersalloy

A

13 seconds

21
Q

Amalgam Brands:

Mixing time for Valiant

A

13 seconds

22
Q

Purpose of Acid Etched Restorative Resin Material

A
  1. Increases the bond between the enamel and resin

2. Provides an added source of retention, increasing marginal seal

23
Q

Procedure for Acid Etched Restorative Resin Material

A
  1. Dry cavity prep thoroughly
  2. Apply etch to the enamel walls
  3. Rinse/Dry thoroughly, after 15-60 seconds
  4. Treated tooth will appear frosted
24
Q

Precautions for Acid Etched Restorative Resin Material

A
  1. Avoid contact with soft tissue, rinse thoroughly if contact is made
  2. Protect the pulp to prevent irritation or injury
25
Uses and Characteristics of Amalgam
1. Predominately for all tooth surfaces of premolars and molars 2. Pre-capsulated - triturate to mix capsules 3. Soft, pliable, easily condensed and shaped 4. High compression strength to withstand biting force 5. Does not bond directly to the tooth - possibility of microleakage and recurrent decay
26
Uses and Characteristics of Glass Ionomer Cement
1. Cementing crowns and FPD 2. A temporary filling 3. Releases fluoride ions, which inhibits recurring decay
27
Uses and Characteristics of OptiBond
1. A Bonding Agent 2. Fluoride Releasing 3. Light Sensitive
28
Procedure for OptiBond
1. Move the dental light away from the treatment area 2. Apply one drop to the mixing pad, or provider's glove (Provider's preference) 3. Pass a bent microbrush to the provider 4. Light-cure to speed up the setting reaction
29
Uses and Characteristics of Composite Restorative Material
1. Used on anterior teeth due to high visibility, and small posterior restorations 2. Bonds well with enamel surfaces 3. Applied in 1-2mm increments 4. Light-cure to speed up setting reaction
30
Uses and Characteristics of Dental Sealants
1. Clear or tooth-colored 2. Filled or unfilled resin-based material is applied to pits and fissures 3. Curing light will be required to speed up setting reaction
31
TRUE OR FALSE: Dental Sealants - Filled resin-based material requires checking occlusion for possible adjustments
True
32
TRUE OR FALSE: Dental Sealants - Unfilled resin-based material requires checking occlusion for possible adjustments
False | The material will wear naturally
33
Purpose of Dental Sealants
1. Fill in deep pits and fissures susceptible to dental decay/caries, which progressively destroys tooth surfaces 2. A physical barrier protecting against future decay
34
Contraindications for Dental Sealants
1. Caries | 2. Fluoride or oils recently applied by fluoridated prophy paste
35
Alginate Impression Material: | Working time for Regular Set
2 Minutes
36
Alginate Impression Material: | Setting time for Regular Set
4.5 Minutes
37
Alginate Impression Material: | Working Time for Fast Set
1 Minute
38
Alginate Impression Material: | Setting Time for Fast Set
1 to 2 Minutes
39
Uses and Characteristics of Alginate Impression Material
1. For preliminary impression, used to create study casts | 2. Irreversible hydrocolloid
40
Alginate Impression Material: | Setting time is directly affected by what factors
1. The temperature of the water 2. The temperature of the DTR 3. The temperature of the patient's mouth
41
What are the four types of Polyvinyl Siloxane Impression Materials
1. Light Body (Low Viscosity) - Used in a syringe to express around prepped tooth/teeth 2. Regular Body (Medium Viscosity) - Used in a syringe to express around prepped tooth/teeth or in tray 3. Heavy Body (High Viscosity) - Used in tray 4. Putty - Used in tray
42
Uses and Characteristics of Polyvinyl Siloxane Impression Material
1. Crown and Bridge Impressions 2. Precise duplication of models (diagnostic casts) in a dental laboratory 3. Reversible hydrocolloid
43
A sheet with information of workplace chemical and physical hazards, manufacturer supplies with product, and maintained in a centralized location
Safety Data Sheet (SDS)
44
TRUE OR FALSE: | Chemical Misuse can cause injury or death
True
45
Mercury Hazards: | Mercury Spills
Immediately cleaned IAW manufacturer's instruction using PPE
46
Mercury Hazards: | Mercury Precautions
1. Avoid touching hair or face 2. Thorough handwashing 3. NEVER wear jewelry when handling

NDAP NAVDEN 102 Unit 4: Dental Materials (1 decks)

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