Sealants are thin layers of resin that are placed on the pits, fissures, and
grooves of molars to prevent decay on these surfaces.
The majority of decay on back teeth starts in the grooves and pits of chewing
surfaces, especially during the first few years after their eruption. Sealing
these surfaces with composite resins prevents this kind of decay.
Sealants are one of the most effective methods of preventing decay on the
surfaces where they are placed. Although it is still a possibility that decay
may develop on surfaces in between teeth, sealants significantly reduce the
overall chance of having cavities.
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