Tooth decay has become increasingly prevalent in preschoolers. Not only is tooth decay unpleasant and painful, it can also lead to more serious problems like premature tooth loss and childhood periodontal disease.
Dental sealants are an important tool in preventing childhood caries (cavities) and tooth decay. Especially when used in combination with other preventative measures, like biannual checkups and an excellent daily home care routine, sealants can bolster the mouth’s natural defenses, and keep smiles healthy.
In general, dental sealants are used to protect molars from oral bacteria and harmful oral acids. These larger, flatter teeth reside toward the back of the mouth and can be difficult to clean. Molars mark the site of four out of five instances of tooth decay. Decay-causing bacteria often inhabit the nooks and crannies (pits and fissures) found on the chewing surfaces of the molars. These areas are extremely difficult to access with a regular toothbrush.
If the pediatric dentist evaluates a child to be at high risk for tooth decay, he or she may choose to coat additional teeth (for example, bicuspid teeth). The sealant acts as a barrier, ensuring that food particles and oral bacteria cannot access vulnerable tooth enamel.
Dental sealants do not enhance the health of the teeth directly, and should not be used as a substitute for fluoride supplements (if the dentist has recommended them) or general oral care. In general however, sealants are less costly, less uncomfortable, and more aesthetically pleasing than dental fillings.
Though there are many different types of dental sealant, most are comprised of liquid plastic. Initially, the pediatric dentist must thoroughly clean and prepare the molars, before painting sealant on the targeted teeth. Some sealants are bright pink when wet and clear when dry. This bright pink coloring enables the dentist to see that all pits and fissures have been thoroughly coated.
When every targeted tooth is coated to the dentist’s satisfaction, the sealant is either left to self-harden or exposed to blue spectrum natural light for several seconds (depending on the chemical composition of the specific brand). This specialized light works to harden the sealant and cure the plastic. The final result is a clear (or whitish) layer of thin, hard, durable sealant.
It should be noted that the “sealing” procedure is easily completed in one office visit, and is entirely painless.
Sealants are usually applied when the primary (baby) molars first emerge. Depending on the oral habits of the child, the sealants may last for the life of the primary tooth, or need replacing several times. Essentially, sealant durability depends on the oral habits of the individual child.
Pediatric dentists recommend that permanent molars be sealed as soon as they emerge. In some cases, sealant can be applied before the permanent molar is full grown.
The health of the sealant must be monitored at biannual appointments. If the seal begins to lift off, food particles may become trapped against the tooth enamel, actually causing tooth decay.
If you have questions or concerns about dental sealants, please contact your pediatric dentist.
Fluorine, a natural element in the fluoride compound, has proven to be effective in minimizing childhood cavities and tooth decay. Fluoride is a key ingredient in many popular brands of toothpaste, oral gel, and mouthwash, and can also be found in most community water supplies. Though fluoride is an important part of any good oral care routine, overconsumption can result in a condition known as fluorosis. The pediatric dentist is able to monitor fluoride levels, and check that children are receiving the appropriate amount.
Fluoride fulfills two important dental functions. First, it helps staunch mineral loss from tooth enamel, and second, it promotes the remineralization of tooth enamel.
When carbohydrates (sugars) are consumed, oral bacteria feed on them and produce harmful acids. These acids attack tooth enamel – especially in children who take medications or produce less saliva. Repeated acid attacks result in cavities, tooth decay, and childhood periodontal disease. Fluoride protects tooth enamel from acid attacks and reduces the risk of childhood tooth decay.
Fluoride is especially effective when used as part of a good oral hygiene regimen. Reducing the consumption of sugary foods, brushing and flossing regularly, and visiting the pediatric dentist biannually, all supplement the work of fluoride and keep young teeth healthy.
Since community water supplies and toothpastes usually contain fluoride, it is essential that children do not ingest too much. For this reason, children under the age of two should use an ADA-approved, non-fluoridated brand of toothpaste. Children between the ages of two and five years old should use a pea-sized amount of ADA-approved fluoridated toothpaste, on a clean toothbrush, twice each day. They should be encouraged to spit out any extra fluid after brushing. This part might take time, encouragement, and practice.
The amount of fluoride children ingest between the ages of one and four years old determines whether or not fluorosis occurs later. The most common symptom of fluorosis is white specks on the permanent teeth. Children over the age of eight years old are not considered to be at-risk for fluorosis, but should still use an ADA-approved brand of toothpaste.
The pediatric dentist is the best person to decide whether a child needs fluoride supplements. First, the dentist will ask questions in order to determine how much fluoride the child is currently receiving, gain a general health history, and evaluate the sugar content in the child’s diet. If a child is not receiving enough fluoride and is determined to be at high-risk for tooth decay, an at-home fluoride supplement might be recommended.
Topical fluoride can also be applied to the tooth enamel quickly and painlessly during a regular office visit. There are many convenient forms of topical fluoride, including foam, liquids, varnishes, and gels. Depending on the age of the child and their willingness to cooperate, topical fluoride can either be held on the teeth for several minutes in specialized trays or painted on with a brush.
If you have questions or concerns about fluoride or fluorosis, please contact our office.
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