Which technique is sometimes used before sealant application to open pits and fissures and remove slight decay?

The technique that is commonly used before sealant application to open pits and fissures and remove slight decay is microabrasion. This method involves the use of a combination of abrasive materials and acids to selectively remove thin layers of enamel and any associated discoloration or decay, particularly in the occlusal surfaces where sealants are often applied.

Microabrasion is effective in preparing the tooth surface to ensure that the sealant adheres properly and effectively seals the pits and fissures to prevent future decay. The controlled removal of superficial enamel layers allows for a clean surface that enhances the bond between the tooth and the sealant material. This technique is especially useful in cases where there may be minor decay present that needs to be addressed before the application of a sealant, ultimately helping to preserve tooth structure while promoting better oral health outcomes.

Using methods like air abrasion also prepares the tooth surface, but microabrasion is specifically tailored for that gentle and precise approach needed for initial decay and surface preparation. Other methods, such as ultrasonic scaling, are primarily used for cleaning and plaque removal rather than preparing pits and fissures for sealants, and chemical dissolution focuses on demineralization rather than a physical approach to enhancing the surface for bonding.