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Our teeth are covered with a sticky film of bacteria, called plaque (sounds like PLAK). When we eat or drink anything that contains sugar-such as cookies, candy, soda, juice, or sports drinks-bacteria turn the sugar into acids that can attack tooth enamel. Over time, these attacks may cause tooth decay, or cavities. The good news is that there is a way to protect teeth and prevent decay: dental sealants.
Why are sealants needed?
Tooth decay often begins on the chewing surfaces of the back teeth. These surfaces have pits and grooves that trap plaque, bacteria, and bits of food. The pits and grooves are hard to keep clean, because toothbrush bristles cannot reach into them. That is how decay starts in the pits and grooves and cavities form. To keep decay from starting here, the dentist may recommend dental sealants.
How do sealants work?
A dental sealant is a plastic material (resin) applied to the chewing surfaces of the back teeth. The sealant material flows into the pits and grooves in the teeth. The sealant acts as a barrier, protecting enamel by sealing out plaque, bacteria, and food.
How are sealants applied?
Sealants are easy to apply. It takes only a few minutes to seal each tooth. First, the tooth is cleaned and the chewing surfaces are prepared to help the sealant stick to the tooth. Then the sealant is painted onto the chewing surface where it bonds to the tooth and hardens. A special light may be used to help the sealant harden. Sealants are generally clear or white and cannot be seen when you smile or talk.
How long do sealants last?
Sealants usually last several years before they need to be replaced. Over time, sealants can become loose or worn. Then they may not protect the teeth as well. Chewing on ice or hard foods can also break down sealants. During regular dental visits, your dentist will check your sealants and reapply them if needed.
How else can I protect teeth from decay?
Sealants protect only the chewing surfaces of teeth. To prevent cavities, follow these Healthy Smile Tips:• Brush your teeth twice a day with a fluoride toothpaste.
• Clean between your teeth once a day.
• Eat a healthy diet and limit snacks.
• Visit your dentist regularly.
These good habits stop decay from forming in between the teeth-spots that sealants cannot cover. Look for oral care products that display the ADA Seal of Acceptance. This tells you that the product meets ADA standards for safety and effectiveness.
Who should get sealants?
Sealants are most often placed in children and teenagers, since tooth decay can start soon after teeth come in. But adults can sometimes benefit from sealants too, because you never outgrow the risk for developing cavities.
A sealant can be placed on a tooth that does not have a cavity in its pits and grooves. If a tooth is stained or has mild decay, your dentist may suggest you get a sealant, or another option may be necessary. If a tooth has more advanced decay, it will need a filling.
Prevention is always better than treatment. Sealants are very useful in preventing tooth decay on the back teeth and can save patients money over time. Your dentist can make sealants part of your plan for a healthy mouth.
Despite your child’s best efforts to carefully brush and floss their teeth they may still need sealants on certain teeth. It can be very difficult to effectively clean the tiny grooves and pits on some teeth, like the 6-year and 12-year molars, as food and bacteria can build up in the crevices leading to tooth decay. Sealants can be a great way to ‘seal out’ food and plaque and reduce the chance of decay.
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