Pit & Fissure Sealants Dr.Rai Tariq Masood

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.

Materials used as Sealants Polyurethanes Cyanoacrylates Methylmethacrylate BISGMA Glass Ionomer

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

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.

Acid Etching Removes organic material and debris from surface Produce micro-pores into which monomer penetrates 30-50% Ortho-phosphoric acid applied for 30-60 seconds.

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

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

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

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.

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.

Thank You