What are dental sealants and how effective are they in preventing cavities? How long do they last and do they have to be reapplied?
The grooves in teeth can be so narrow that a toothbrush can't clean the area. Therefore, food and bacteria can lodge inside. This results in approximately 85 percent of all cavities. A sealant is a liquid resin that can fill these grooves in. After we paint this resin into the grooves, we shine a special light on the resin to bond it to the tooth. Once a tooth is sealed, you can clean it with your toothbrush. Some studies have shown that after 10 years, 66 percent of sealants are still functioning. If a piece cracks off or the sealant fails, we can tell at the regular exam, and it's a simple matter to replace it or touch it up.
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