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Pediatric Dentistry I > EXAM I Restorative Dentistry > Flashcards

EXAM I Restorative Dentistry Flashcards

1
Q

what is the term used to describe the following:

  • physical obstruction of pits and grooves
  • decrease viable bacterial counts in sealed occlusal fissues
  • prevents new bacterial colonization
    • prevents penetration of fermentable CHOs and production of acid with bacteria
A

cariostatic property

(the purpose of restorative dentistry)

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2
Q

describe the simonsen sealant study

A
  • sealants recalled after 15 years: 69% were sound, 31% were carious or restored
  • group without sealants: 83% were carious or restored, 17% were sound
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3
Q

a pit and fissue surface on a permanent first molar is ___x more likely to be carious or restored after 15 years

A

7.5

this is why sealants are so important

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4
Q

is it recommended to provide sealants to children even if follow-up cannot be ensured?

A

yes

evidence-based reviews have found that caries risk for sealed teeth that have lost some or all sealant does not exceed the caries risk for teeth that have never been sealed

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5
Q

what are some considerations when sealants may not be cost effective?

A
  • well-coalesced pits and fissures (ie. NOT deep)
  • caries unlikely
  • poor patient cooperation
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6
Q

when are sealants contraindicated?

A
  • rampant caries
    • interproximal lesions are present
    • decay reaches dentin
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7
Q

what are the properties of composite resin that make it good as a sealant material?

A
  • insoluble, aesthetic, insensitive to dehydration, easy to manipulate
  • a filler material such as silica
  • a photoinitiator
  • flow into pits and grooves of occlusal surfaces
  • form a protective barrier
  • wet-bonding - moisture tolerant resin chemistry
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8
Q

___ is commonly added to composite resin to achieve physical properties of flowability

A

dimethylglyoxime

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9
Q

what are the properties of ultraseal XT hydro-ultradent that make it good as a sealant material?

A
  • 53% filled
  • light cure activation
  • radio-opaque thixotropic (flowable property) resin
  • hydrophilic
  • self-adhesive
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10
Q

what are the properties of glass ionomer that make it good as a sealant material?

A
  • considered a provisional sealant
  • continuous fluoride release
  • deeply fissured primary molars
  • wet field
  • partially erupted molars
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11
Q

___ as a sealant material should be reevaluated and probably replaced with resin-based sealants when better isolation is possible

A

glass ionomer

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12
Q

what are the properties of silverdiamine that make it good as a sealant material?

A
  • effective at inhibiting lesion progression
  • follow-up care
  • reduction of dentinal hypersensitivity
  • reduce bacteria and matrix metalloproteinases (responsible for degradation of dentin)
  • arrest carious lesions
  • diagnostic indicator - only stains carious lesions
  • one drop can be used for multiple teeth
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13
Q

what is silver diamine fluoride, and what percent of silver diamine sealant material is composed of silver diamine fluoride?

A
  • a metal ammine complex of silver fluoride
  • 38%
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14
Q

what is the recommended % acid solutions and etching time for placement of sealants?

A
  • 30-50% acid solutions or gels
  • 20-second etching time
  • studies show that >50% acid solutions and/or >20 second etching time did not affect bond strength of sealants
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15
Q

what are two cases where teeth may need to be etched for longer periods?

A

primary teeth and enamel rich with fluorohydroxyapatite

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16
Q

which sealant material has shown 88% of the restored surfaces remain caries-free 9 years after placement?

A

preventive resin restorations

17
Q

what are some considerations for preiodic recall of teeth with sealants?

A
  • 5-10% need repair
  • determine effectiveness, reapply if necessary
  • partial loss, discolored, or defects
    • remove and reevaluate, reapply if indicated
18
Q

pit and fissure sealants lower the number of viable bacteria including ___ and ___ by at least 100-fold

A

strep mutans and lactobacilli

19
Q

are self-etch or acid etch techniques better for retention?

A

acid etch

20
Q

between acid-etch, quarter round bur, and air abrasion surface preparation, which produced the least microleakage?

A

bur

need to be careful with enamloplasty though - sometimes aggressive use can remove the last of the enamel overlying the dentin in deep fissures, leaving the tooth more susceptible to future caries in case of sealant loss

21
Q

what is the difference in application between chemically cured sealants and light cured sealants?

A

chemically cured sealants typically have shorter working times

22
Q

___ is an alternative procedure for restoring young permanent teeth that require only minimal tooth preparation for caries removal but also have adjacent susceptible fissures

A

preventive resin restoration (sealed composite resin restoration)

23
Q

what is an important consideration related to restoration failures between primary teeth and permanent teeth?

A

primary teeth are more susceptible to restoration failures than permanent teeth, so you need to consider the length of time before the primary tooth is exfoliated

24
Q

what rubber dam clamb should be used for permanent molars? what about primary molars?

A
  • permanent molars - 14A
  • primary molars 8A
25
Q

what is the bur of choice for establishing outline and depth for preparations?

A

330

26
Q

the pulpal floor should be ___mm into dentin, and about ___mm from the enamel surface

A
  • 0.5
  • 1.5
27
Q

should you bevel the cavosurface margin of an amalgam preparation? what about a composite preparation?

A
  • amalgam - no
  • compositve - yes
28
Q

what type of restoration is generally indicated for a primary tooth with extensive decay, like a 3-surface MOD?

A

SSC

29
Q

what restoration is indicated when caries removal results in a pulp exposure in a primary tooth with a normal pulp or reversible pulpitis or after a traumatic pulp exposure?

A

pulpotomy

30
Q

when completing a pulpotomy restoration, what material is the coronal pulp chamber filled with?

A

zinc oxide eugenol base

31
Q

what is the most effective long-term restoration for primary teeth?

A

SSC

32
Q

which size SSC is the most frequent size used in pediatric dentistry?

A

4

Pediatric Dentistry I (8 decks)

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