Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Paediatrics > Restorative Materials for Primary Teeth > Flashcards

Restorative Materials for Primary Teeth Flashcards

1
Q

What are some considerations to take into consideration when treatment planning for deciduous teeth?

A
  • Different morphology
  • Relationship to permanent teeth–>space maintenance, can damage permanent teeth if traumatised
  • Shorter progression of caries to pulp
  • Caries risk
  • Size and type of lesion
  • Pulp status
  • Age
  • Stage of root development/extent of resorption
  • Tooth anomalies
  • Level of cooperation
  • Attendance
  • Oral hygiene
  • Material properties
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are some differences in morphology of deciduous teeth vs permanent?

A
  • Greater convexity in cervical third of crown–>narrower neck–>not as much structure to support slot preps for deep restorations
  • Mesiodistal length: crown height ratio is larger
  • Enamel is only 1mm thick (vs 2mm in permanent)
  • Dentine is also thinner
  • Larger pulp with more prominent pulp horns, especially mesial horn in molar teeth
  • Broader contact areas
  • Molar roots more slender and flared
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What should you aim for when restoring primary teeth and why?

A

Restore the tooth once only before exfoliation and no more

-Better for child, cost, time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the materials available for use in paeds?

A 
SS crown
CR
RMGIC
GIC
Amalgam
Compomers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the advantages and disadvantages of SS crowns?

A
  • Durability + longevity
  • Relatively inexpensive
  • Minimal technique sensitivity
  • Full coronal coverage
  • MOre conservative of tooth structure in long run
  • Poorer aesthetics
  • Can impact erupting 6’s
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the advantages/disadvantages of white stainless steel crowns?

A
  • Durability + longevity
  • Better initial aesthetics
  • More expensive
  • 1 or 2 shades only available
  • Cant’ modify shape for fit (e.g. crimping) as white facing quite solid
  • Over time white facing debonds bit by bit resulting in poorer aesthetics
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are some adv + disadv of using zirconia crowns in children?

A

adv:
-More aesthetic

Disad:

  • Need to prep as in permanent tooth (as can’t leave undercuts since can’t stretch like SS)
  • Less conservative prep since not as thin as SS
  • Can’t rely on undercuts on teeth to hold crown in–>relying purely on cement
  • Large amount of tooth structure cut away means a pulpotomy will be needed whther or not pulp was affected
  • Limited studies on longevity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the indications of SS crowns?

A
  • After pulpotomy
  • Multi surface restoration
  • Any other restoration likley to fail
  • Developmental defects
  • Early wear + loss of occlusal height
  • Previous restoration failure
  • Fractured teeth
  • High caries risk
  • Infrequent attender with caires
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Should you do occlusal reduction first or remove caries first?

A

-Occlusal reduction first: gives better caries access after

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What should you do first: ss crown or fissure sealant?

A
  • Fissure sealant: gingival bleeding caused by SS crown prep can compromise moisture control for F/S
  • Same for small occlusals and other restorations
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If doing side by side crowns, should you do the D or E first in general?

A

E, as it is easier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What should you consider when fitting a crown on the E?

A

Do not make it overly big if 6 not erupted else risk impaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What size SS crown is most common for E’s?

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What size SS crown is most common for D’s?

A

5+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the advantages/ disadvantages of amalgam?

A

Adv:

  • Easy to manipulate
  • Good durability
  • Lower cost
  • decreased Microleakage with time
  • Low technique sensitive

Disad:
Not aesthetic
-Mercuary issues (requires consent!)
-Not conservative

*Not generally advised to be used in children, but not based on evidence on toxicity, based on impact on environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are advantages/disad of resin cr?

A

Adv:

  • More aesthetic
  • Micromechanical bond
  • Bond to dentine via hybrid layer
  • conservative

Disad:

  • shrinkage
  • Microleakage
  • Secondary caries
  • Technique sensitive
17
Q

What is the filler content of flowable resin?

A

37-53%

18
Q

What happens to resin properties as filler decreases?

A
  • Increased wear

- Higher shrinkage

19
Q

What are the adv + disad of GIC?

A

Adv:

  • Chemical bond
  • conservative
  • thermal expanasion similar to tooth
  • Bicompatabile
  • Uptake and release of fluoride
  • Decreased moisture sensitivity

Disad:

  • Wear
  • Poor Strength (unsuitable for stress bearing areas)
  • Chemical cure
20
Q

What are the adv + disad of RMGIC?

A

Adv:

  • Fluoride release
  • Dual cure
  • conservative
  • Aesthetic
  • Easy to use

Disad:

  • Mechanical properties
  • Strength/aesthetic < CR
21
Q

What is the issue with sandwich technique in deciduous?

A

-Not enough bulk to do GIC and resin

22
Q

What are the adv and disad of compomers?

A

Adv:

  • Easy to use
  • MOre moisture tolerant than CR
  • Superior physical properties to GIC/RMGIC
  • Similar aesthetics to CR
  • Possible fluoride release
  • Similar short term success as CR

Disad:

  • Wear
  • Lack of long term longevity studies
23
Q

What is the issue with plugging a small hole with CR in anterior teeth?

A

-Tend to fall out as kid is biting/chewing

24
Q

What is an alternative, longer lasting restoration for anterior teeth than just filling the hole? What are some +’s and -‘s?

A

CR Strip crowns

Adv:

  • Excellent aesthetics and colour match
  • Good strength + longer longevity vs small resto
  • Reasonable wear resistance
  • Ease of repair

Dis:

  • Require adequate tooth structure
  • Technique sensitive
25
Q

What should you remember to cover when doing fissure sealants?

A
  • Buccal pit of lowers

- Palatal grooves of uppers

26
Q

What should you tell parents about fissure sealants?

A

-Require constant monitoring and may require topping up to maintain protection

27
Q

Which teeth should be fissure sealed?

A
  • High risk (e.g. caries in primary dentition automatically seal all 6’s)
  • Deep pits and fissures
28
Q

What is generally preferred as a f/s between GIC and resin base? why? When would you use the least preferred one?

A
  • Resin based preferred
  • GIC has poorer retention

-Can use GIC on partially erupted teeth with difficult moisture control

29
Q

What is the ideal material for repairing heavily worn permanent anterior teeth (e.g. due to hypomin)

A
  • CR

- Can’t do fixed pros when pt hasn’t finished growing

30
Q

What is the ideal material for large fractures on peramnent teetH?

A

Strip crowns/crown formers
(will feel a bit more bulbous but kids get used to it)
(will last a lot longer due to having more tooth structure to bond to)

31
Q

What are the contraindications to CR in permanent teeth?

A
  • High caries risk
  • Poor OHI and compliance
  • Maintainence is unlikely
  • Tooth can not be isolated
  • Special consideration to special needs (e.g. anaesthetic risks)

*Anything that decreases longevity

32
Q

What are the indications for amalgam in permanent teeth?

A
  • Large posteriors
  • Difficult tooth isolation
  • High caries risk
  • Child with failed CR or other restoration
  • Under GA, especially with kids with special needs that need it to be long lasting
33
Q

How would you managed hypomineralised teeth?

A
  • GIC as erupting to cover dentine for hypersensitivity
  • CR after eruption and get moisture control
  • Also consider stainless steel crown if tooth needs to be retained and no other restoration is going to last–>protects tooth until you can do a permanent crown later
34
Q

What are the advantages/disadvantages of using stainless steel crowns on permanent teetH?

A

Adv:

  • Durable
  • Relatively cheap
  • Single step
  • Full coronal coverage
  • Reduces dentine sensitivity

Dis:

  • Poor aesthetics
  • Potential for nickel allergy
  • May cause perio problems if retained for long time
35
Q

Would you use IRM as a temporary in deciduous teeth and whY?

A

Don’t

  • Spend more time removing next session
  • If not good seal around gingival margin can have gingival inflammation + bleeding

However, can be used as a temporary in permanents, but usually will only be used for pulpotomy as GIC is a better temp material anyway

Paediatrics (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions