Sealants At The End What are pits and fissures What are pit and fissure sealants Indications and contraindications Procedure of application Factors affecting sealant retention 3 HISTORY ID: 1047863
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1. GOOD MORNING1
2. 2Pit and Fissure Sealants
3. At The End…What are pits and fissures?What are pit and fissure sealants?Indications and contraindicationsProcedure of applicationFactors affecting sealant retention3
4. HISTORY- attempts for preventing caries 1895-Wilson-placement of dental cements-to prevent dental caries1905 – Miller- silver nitrate 1922 - Hyatt- prophylactic odontotomy 1929 – Bodecker- Fissure eradication1955- Buonocore –adhesive resin system1962 - BISGMA by Bowen4
5. What is a pit ?What is a Fissure ?5PITSsmall pinpoint depressions located at the junction of developmental grooves or at terminals of those grooves. (Ash and Nelson) FISSURELong clefts between cusps or ridges(Orban)
6. Types Of Pits And Fissures(Nagano,1960)65 types(Nagano)V type U type I typeIK typeInverted Y typeOther:Shallow, wideDeep ,narrow
7. Why Pit And Fissures Are To Be Sealed ??7
8. 8Pit and Fissure SealantsPit and sealant materials are the plastic and professionally applied materials used for the purpose of occluding pit and fissure areas in tooth to prevent dental caries
9. ClassificationBased onTypesCharacteristicsI. Generations1. First Generation Sealants.UV light(350nm) e.g. Nuva lightNo more used, as a UV light is harmful 2. Second Generation Sealants.Chemical curing resins, based on catalyst-accelerator system. e.g. Concise(3M)3. Third Generation Sealants.Activated by visible light (430-490nm)e.g. Delton 4.Fluoride containing SealantsDouble protection-addition of fluoridee.g. Helioseal9
10. II. Fillers1. Free of fillers2. SemifilledFlow is better.More resistant to wear.III. Colour of the sealants1. ClearEsthetic but difficult to identify at recall examination.2. TintedCan be easily identified.3. OpaqueCan be easily identified.10
11. CyanoacrylatesPolyurethanes Eg. EpoxyliteBIS-GMAGlass ionomerMaterials Used as Sealants11
12. Indications12
13. Contraindications13
14. Selection of patient and the toothCleaning and polishing the surfaceIsolate and dry the tooth surfaceAcid etchingProcedure for Application14
15. Rinse and dry the tooth surfaceSealant application and curingEvaluation Check the occlusion 15
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17. Type of sealant used Position of teeth in the mouth Clinical skill of the operator Age of the child Eruption status of teeth17Sealant Retention Depends on
18. 18Conclusion..“SEALANTS ARE EXTENSIVELY STUDIED BUT MOST UNDER USED.”
19. 19Questions…
20. Thank You20