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Restoration of Primary Teeth Flashcards

1
Q

Name 5 reasons for restoring primary teeth

A
  1. Prevent pain
  2. Protect and preserve pulp and remaining tooth
  3. Ensure adequate function
  4. Restore aesthetics
  5. Maintain space
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2
Q

Name 3 dental factors to consider when choosing a restorative material

A
  1. Extent of lesion
  2. Tooth affected
  3. Oral hygeine
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3
Q

Name 5 general factors to consider when choosing a restorative material

A
  1. Age of patient (how long restoration must last)
  2. Cooperation
  3. Medical history
  4. Caries risk
  5. Parental preference
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4
Q

Name a specific reason a medical history is important when choosing a restorative material

A

Nickel allergy may occur

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5
Q

Describe the morphology of primary teeth compared to permanent teeth

A
  • Smaller, more bulbous crown
  • Marked cervical constriction
  • Finer roots with increased divergence
  • Larger pulp follows exterior contours of tooth with thin floor
  • Large mesiobuccal pulp horn
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6
Q

Name 7 important properties to consider of a restorative material

A
  1. Mechanical
  2. Chemical
  3. Physical
  4. Biological
  5. Adhesive
  6. Aesthetics
  7. Rheolgoy
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7
Q

Describe 3 mechanical properties to consider when choosing a restorative material

A
  1. Compressive strength
  2. Hardness
  3. Wear resistance
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8
Q

Describe 3 chemical properties to consider when choosing a restorative material

A
  1. Erosion
  2. Corrosion
  3. Dissolution in the mouth
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9
Q

Describe a physical property to consider when choosing a restorative material

A

Dimensional stability

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10
Q

Describe a biological property to consider when choosing a restorative material

A

Does not harm the patient or the dentist

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11
Q

Describe an adhesive property to consider when choosing a restorative material

A

No loss of sound tooth structure

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12
Q

Describe 4 aesthetic properties to consider when choosing a restorative material

A
  1. Good appearance
  2. Opacity
  3. Translucency
  4. Colour stability
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13
Q

Describe 3 rheological properties to consider when choosing a restorative material

A
  1. Viscosity
  2. Tackiness
  3. Handling characteristics
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14
Q

Name 4 restorative materials used in children

A
  1. Composite
  2. Compomer
  3. Glass Ionomer
  4. Stainless Steel Crowns
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15
Q

Name 3 types of GIC which may be used in children for restorations

A
  1. Conventional
  2. Resin modified
  3. High viscosity
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16
Q

Name 4 advantages of composite as a paediatric restoration

A
  1. Adhesive
  2. Aesthetic
  3. Reasonable wear properties
  4. Command set
17
Q

Name 4 disadvantages of composite as a paediatric restoration

A
  1. Technique sensitive
  2. Hard to get rubber dam on
  3. Expensive
  4. Shrinkage
18
Q

Name 3 times when composite is the restorative paediatric material of choice

A
  1. Occlusal restorations
  2. Small interproximal restorations
  3. Anterior restorations (including strip crowns)
19
Q

Describe the use of compomers

A
  • Poly-acid modified composite resins
  • Contain either or both GIC essential components
  • Acid base reaction occurs in mouth allowing fluoride release
  • Requires use of dentine bonding agent
20
Q

Describe 2 comparisons of compomer and composite

A
  • Compomer is less moisture sensitive than composite

- Compomer is less wear resistant than composite

21
Q

Describe conventional glass ionomer as a paediatric restorative material

A
  • Base glass and acidic water-soluble powder
  • Setting reaction completes in minutes but matures over months
  • Protect from salivary contamination during initial setting reaction
  • Adhesion enhanced by enamel and dentine conditioning agents
22
Q

Name 4 advantages of conventional GIC as a paediatric restoration

A
  1. Adhesive
  2. Tooth colours
  3. Fluoride leaching
  4. Good for stabilisation of multiple carious teeth
23
Q

Name 2 disadvantages of conventional GIC as a paediatric restoration

A
  1. Brittle

2. Susceptible to erosion and wear

24
Q

Describe the development of resin modified GIC

A

Developed to overcome problems of moisture sensitivity and low mechanical strength

25
Name 5 advantages of resin modified GIC as a paediatric restoration
1. Adhesive 2. Aesthetic 3. Command set 4. Easy to handle 5. Fluoride releasing
26
Name 2 disadvantages of resin modified GIC as a paediatric restoration
1. Water absorption | 2. Wear
27
Describe high viscosity glass ionomer
- Developed for atraumatic restorative technique - Chemically-cured - Better mechanical properties
28
Describe the indications for conventional GI
Rarely indicated as better options available
29
Describe the indications for resin modified GI
- Temporary restorations - Stabilisation in small or large lesions - Patients who have a high caries rate
30
Describe the indications for high viscosity GI
Atraumatic Restorative Technique (ART)
31
What are preformed metal crowns?
Nickel-chromium
32
Name 3 advantages of preformed metal crowns
1. Durable 2. Protect and support remaining tooth structures 3. Hall technique options
33
Name 3 disadvantages of preformed metal crowns
1. Conventional preparation requires extensive tooth preparation 2. Patient cooperation required 3. Unaesthetic
34
Name 4 reasons preformed metal crowns are the restoration of choice
1. More than surfaces affected 2. Extensive 1 or 2 surface lesions 3. Following pulpotomy or pulpectomy 4. A little cooperation - Hall Technique
35
Describe the survival time of restorations in primary teeth
- Metal crowns and amalgam > 60 months - Composite > 32 months - Metal crowns have 68% 5 year survival rate - Amalgam have 60% 5 year survival rate - Composite have 40% 4 year survival rate - GIC have 5% 4 year survival rate

Paediatrics (12 decks)

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