Back teeth have deep pits and grooves that can trap plaque and food even when a patient brushes carefully. These narrow areas are common places for cavities to begin, especially in children and teenagers.
A dental sealant is a thin protective coating that flows into those grooves after the tooth has been cleaned and prepared. It is hardened in place to create a smoother, easier-to-clean chewing surface.
The finished sealant forms a barrier over cavity-prone grooves without removing healthy tooth structure. It should be checked at routine visits because sealants can wear or chip and occasionally need repair.
These illustrations explain general concepts and do not replace an individual dental evaluation. Implant surgery and root canal treatment are coordinated with outside specialists.