What are pit and fissure sealants?

• • Restorative materials used to fill cavities

• • Fluoride treatments for enamel strengthening

• • Preventive materials used to seal pits and fissures of teeth

• • Materials used for teeth whitening

Which teeth are most commonly sealed with pit and fissure sealants?

• Incisors

• Canines

• Premolars

• Molars

What is the primary indication for the use of pit and fissure sealants?

• • Sensitivity relief

• • Cosmetic improvement

• • Prevention of dental caries

• • Tooth extraction

Which of the following is a contraindication for the application of pit and fissure sealants?

• • Newly erupted molars

• • Non-cavitated lesions in pits and fissures

• • Teeth with shallow pits and fissures

• • Previously restored teeth

Pit and fissure sealants are primarily classified into which two categories?

• • Direct and Indirect

• • Glass ionomer and Composite resin

• • Light-cured and Self-cured

• • Temporary and Permanent

Which type of sealant requires a light source for polymerization?

• • Glass ionomer

• • Composite resin

• • Self-cured sealants

• • None of the above

What is the first step in the application procedure of pit and fissure sealants?

• • Etching the enamel

• • Cleaning the tooth surface

• • Applying the sealant material

• • Rinsing and drying the tooth

Which acid is commonly used for etching in the sealant application process?

• A.

• B.

• C.

• D.

• • Hydrochloric acid

• • Sulfuric acid

• • Phosphoric acid

• • Acetic acid

For how long should the etching gel typically be applied to the enamel?

• • 10-15 seconds

• • 20-30 seconds

• • 1 Minute

• 5 Minutes

After etching, what should be done before applying the sealant?

• • Leave the tooth wet

• • Dry the tooth thoroughly

• • Apply fluoride varnish

• • None of the above