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BDS3 - Paediatrics > Module 6 > Flashcards

Module 6 Flashcards

1
Q

what is the ideal isolation method for placing a fissure sealant

A
  • rubber dam

- it is the ‘gold standard’

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2
Q

what are alternative methods for isolating the tooth other than rubber dam

A
  • cotton wool rolls
  • saliva ejector
  • parotid shield
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3
Q

how is the tooth cleaned

A
  • clean occlusal surface with pumice and water slurry = slow speed, rubber cup, brush
  • rinse with 3-in-1 water spray
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4
Q

what etch is used for fissure sealants

A
  • 35% ortho-phophoric acid on occlusal surface
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5
Q

how long is etch left on for

A
  • 20 seconds
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6
Q

how is the etch removed -

A
  • wash off with 3-in-1 water spray

- dry tooth with 3-in-1 air spray

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7
Q

what should the tooth surface look like after being etched

A
  • frosted

- chalky white appearance

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8
Q

what is the sealant applied with

A
  • micro-brush
  • brush
  • probe
  • small excavator
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9
Q

what is the usual time for light curing the sealant

A
  • 40 seconds

- but go off manufactures instructions

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10
Q

what do you check sealant for after

A
  • air bubbles
  • excess sealant
  • if it can be dislodged
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11
Q

what od you do if there are air bubbles in the sealant

A
  • remove part of sealant and replace
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12
Q

what is the term for extra sealant and how do you remove it

A
  • ‘flash’
  • common at distal interproximal
  • remove with a probe of dental floss
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13
Q

how do you determine if the sealant can be picked off or not

A
  • try to dislodge with a probe
  • pick at the edges
  • if it dislodges, repeat the procedure
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14
Q

how often should sealants be reviewed

A
  • every 6 months
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15
Q

how often should a high risk child be reviewed radiographically

A
  • every 6 months
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16
Q

how often should a moderate risk child be reviewed radiographically

A
  • every 12 months
17
Q

how often should a low risk child be reviewed radiographically

A
  • every 24 months
18
Q

when should fissure sealants be placed

A
  • on permanent molars as early as possible after eruption

- as soon as you can gain appropriate moisture control

19
Q

what are the two types of sealants

A
  • resin based sealants

- glass ionomer sealants

20
Q

which type of sealant has better retention

A
  • resin
21
Q

what is the standard prevention advice for fissure sealants for all children

A
  • place in all pits ad fissures of permanent molars as soon as possible
  • ensure buccal pits of lower first molars and palatal fissures of upper first molars
  • check sealants at every recall visit for wear and tear
  • top-up damaged sealant
22
Q

when would you use GI sealants

A
  • on fully erupted teeth where child is uncooperative and ensure flouride varnish application is optimal
23
Q

what is the standard prevention advice for fissure sealants for high risk children

A
  • provide standard prevention
  • consider using GI on partially erupted 1st and 2nd molars until tooth is fully erupted and can give resin
  • fissure seal palatal pits on upper lateral incisors, occlusal and palatal surfaces of D’s and E’s and 1st and 2nd molars
24
Q

what are the options for cleaning the tooth

A
  • wipe tooth with cotton wool pledget, clean with toothbrush but no paste, using a bristle brush with a prophy paste or gently pulling a probe through he fissures to remove debris
  • use of 3-in-1 alone is not good enough
25
Q

how do you check the airline is free from water

A
  • blow air onto the mirror surface to reveal any water contamination
26
Q

how far up the cusp of the tooth should be sealed with resin

A
  • a third of the incline of the cusp
27
Q

why must you not let resin to overflow into gingival sulcus

A
  • could compromise the seal
28
Q

why must you wipe the air-inhibited layer from the surface of the sealant

A
  • children find the taste distressing
29
Q

how can you tell if a clear sealant is leaking

A
  • if there is opalescence visible at the sealant/tooth interface that usually indicates leakage and demineralisation
30
Q

when can a resin sealant be difficult to place

A
  • on a partially erupted tooth, or with a child who cooperation is limited
31
Q

what is the main disadvantage of GI sealant

A
  • retention rates are poor long-term
32
Q

when should you consider using GI sealant

A
  • when child is pre-coperative
  • when resin sealant is indicated bu there are concerns about moisture control
  • on a partially erupted tooth
33
Q

what technique is used for GI sealants

A
  • press finger technique
34
Q

how are GI sealants placed

A
  • place a small amount of GI on finger tip and petroleum jelly on the adjacent
  • wipe tooth surface with a cotton wool roll
  • firmly apply the finger tip with GI to tooth surface
  • keep finger in place for 2 minutes
  • place second finger in the mouth and rapidly switch fingers to allow coverage of GI with petroleum jelly before moisture contamination
35
Q

what are fissure sealants

A
  • plastic coating that are painted on to the grooves of the back teeth
36
Q

what does fissure sealant do

A
  • forms a protective layer that keeps food and bacteria from getting stuck in the tiny grooves in the teeth and causing decay
37
Q

how long do sealants last

A
  • usually last many years but need to be checked regularly to make sure the seal is intact

BDS3 - Paediatrics (20 decks)

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