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Paediatrics > Restoration of Primary Teeth > Flashcards

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
Q

Name 5 advantages of resin modified GIC as a paediatric restoration

A
  1. Adhesive
  2. Aesthetic
  3. Command set
  4. Easy to handle
  5. Fluoride releasing
26
Q

Name 2 disadvantages of resin modified GIC as a paediatric restoration

A
  1. Water absorption

2. Wear

27
Q

Describe high viscosity glass ionomer

A
  • Developed for atraumatic restorative technique
  • Chemically-cured
  • Better mechanical properties
28
Q

Describe the indications for conventional GI

A

Rarely indicated as better options available

29
Q

Describe the indications for resin modified GI

A
  • Temporary restorations
  • Stabilisation in small or large lesions
  • Patients who have a high caries rate
30
Q

Describe the indications for high viscosity GI

A

Atraumatic Restorative Technique (ART)

31
Q

What are preformed metal crowns?

A

Nickel-chromium

32
Q

Name 3 advantages of preformed metal crowns

A
  1. Durable
  2. Protect and support remaining tooth structures
  3. Hall technique options
33
Q

Name 3 disadvantages of preformed metal crowns

A
  1. Conventional preparation requires extensive tooth preparation
  2. Patient cooperation required
  3. Unaesthetic
34
Q

Name 4 reasons preformed metal crowns are the restoration of choice

A
  1. More than surfaces affected
  2. Extensive 1 or 2 surface lesions
  3. Following pulpotomy or pulpectomy
  4. A little cooperation - Hall Technique
35
Q

Describe the survival time of restorations in primary teeth

A
  • 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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