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BDS 2: Adult Restorative > Fissure Sealing > Flashcards

Flashcards in Fissure Sealing Deck (16)
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1

What is a fissure sealant?

A fissure sealant is a material that is placed in the pits and fissures of teeth in order to prevent or arrest the development of dental caries

2

Almost 50% of caries in school children was found where?

Occlusally

3

Why are pits and fissures particularly vulnerable to caries development?

Plaque accumulates at the pits/fissures so the enamel does not receive the same level of caries protection from fluoride

4

Which children will receive fissure sealants? (3)

- Children with special needs
- Children with extensive caries in primary dentition
- Children with caries in permanent molars

5

Which teeth are the most likely to be given a fissure sealant? (4)

- Molars with deep pits and fissures
- Molars with complex fissure patterns
- Molars with stained fissures
- Incisors with deep cingulum pits

6

When would you use GIC fissure sealants? (2)

- Useful when isolation is problematic
- In partially erupted teeth in high caries risk child

7

What are the 3 types of fissure sealants?

- Unfilled composite resin
- Filled composite resin
- GIC

8

Why are unfilled resin sealants preferred to filled?

Unfilled composite resin sealants flow more easily

9

What are the steps of placing a fissure sealant? (6)

1. Clean tooth
2. Isolate
3. Etch
4. Wash + Dry (10-15secs)
5. Re-isolate
6. Seal

10

What is used to etch the tooth when placing a fissure sealant?

37% phosphoric acid used for 20 seconds

11

What precaution do you need to take during the re-isolation stage of placing a fissure sealant?

Why is this precaution taken?

What may you have to do because of this?

- If salivary contamination has occurred

- Glycoproteins could build up on enamel surface so bond strength of the sealant is highly reduced

- Re-etch

12

At what height of the cusp incline do u apply a fissure sealant upto?

Up to one third of cusp incline

13

How long do you light cure a fissure sealant?

20 Seconds

14

How are fissure sealants considered cost effective?

Pits and fissures are generally recognised as highly susceptible to caries and are least likely to benefit from systemic or topical fluoride. Fissure sealants can prevent caries

15

What percent of fissure sealants remain intact after 3 years?

75%

16

What percent of fissure sealants are effective in caries prevention compared to unsealed?

70%