1. Pit & Fissure Sealants
Dr.Rai Tariq Masood

2. Introduction
Pits and Fissures are the enamel faults;narrow shafts and cracks. Cement which is introduced into unprepared occlusal pits & fissures of caries susceptible teeth forming a protective layer against action of acid producing bacteria.

3. Materials used as Sealants
Polyurethanes
Cyanoacrylates
Methylmethacrylate
BISGMA
Glass Ionomer

4. Procedure of Application
Surface Cleanliness of Tooth
To remove plaque and debris from pits and fissures of tooth.
It can be carried out by pumice

5. Isolate and Dry the Tooth
Rubber dam provides the best isolation
If rubber dam application is not possible,use any means to keep the tooth away from saliva.

6. Acid Etching
Removes organic material and debris from surface
Produce micro-pores into which monomer penetrates
30-50% Ortho-phosphoric acid applied for seconds.

7. Rinse,Dry and Isolate the Tooth
Tooth should be rinsed for 30 seconds
Dry the tooth with compressed air
Tooth is dried until it has chalky white appearance.
Avoid salivary contamination

8. Material Application
The sealant is then applied to the tooth according to manufacturer’s directions.
Material is polymerized

9. Evaluate the Sealant and Check Occlusion
The sealant should be evaluated visually and tactically.
Take explorer and attempt to dislodge it.
If there are any deficiencies, add more material.
Check for occlusal high spots and correct them

10. Indications It is indicated when deep occlusal fissures are present.
Provided to patients with continuing caries risk or belonging to non-Fluoride area.
Children with mental impairment.

11. Contra-indications
It is not indicated in patients with caries on other surface of tooth
Having large occlusal restoration already.
Shallow pits and fissures
Partially erupted tooth due to isolation problem
Uncooperative child due to isolation problem.

12. Thank You