Flashcards in Fissure Sealing Deck (16)
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
Almost 50% of caries in school children was found where?
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
Which children will receive fissure sealants? (3)
- Children with special needs
- Children with extensive caries in primary dentition
- Children with caries in permanent molars
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
When would you use GIC fissure sealants? (2)
- Useful when isolation is problematic
- In partially erupted teeth in high caries risk child
What are the 3 types of fissure sealants?
- Unfilled composite resin
- Filled composite resin
Why are unfilled resin sealants preferred to filled?
Unfilled composite resin sealants flow more easily
What are the steps of placing a fissure sealant? (6)
1. Clean tooth
4. Wash + Dry (10-15secs)
What is used to etch the tooth when placing a fissure sealant?
37% phosphoric acid used for 20 seconds
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
At what height of the cusp incline do u apply a fissure sealant upto?
Up to one third of cusp incline
How long do you light cure a fissure sealant?
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
What percent of fissure sealants remain intact after 3 years?