The deep grooves on a child’s back teeth can be difficult to clean thoroughly, even when they brush carefully. Dental sealants are a preventive option that may help protect these chewing surfaces from decay.
This guide explains what sealants are, who may benefit from them and how they fit into a child’s everyday oral-health routine. The dentists at Limegreen Dental are general practitioners.
What are dental sealants?
Dental sealants are thin protective coatings placed on the chewing surfaces of molars and premolars. These back teeth often have narrow pits and grooves where food debris and plaque can collect.
A sealant creates a smoother barrier over these grooves. It is intended to make the surface easier to clean and reduce the opportunity for decay to begin in areas a toothbrush may not reach well.
Sealants are not a substitute for brushing with fluoride toothpaste, cleaning between teeth when appropriate, a balanced diet and regular dental care. They are one part of prevention.
Learn more about Children's Dentist in Hamilton at Limegreen Dental.
Why are back teeth more vulnerable to cavities?
Molars do most of the chewing, and their naturally uneven surfaces can be challenging for children to brush effectively. A child may brush twice a day and still miss the deepest grooves, particularly while they are developing their brushing skills.
Cavities develop when bacteria in plaque use sugars from food and drinks and produce acids that can weaken tooth enamel. Limiting frequent sugary snacks and drinks, along with consistent oral hygiene, helps reduce this risk.
The first permanent molars commonly arrive in childhood, behind the baby molars. Because these new teeth are important for chewing and may have deep grooves, a dental professional may discuss sealants after examining them.
When might a child be considered for sealants?
Sealants are often considered for children when permanent molars have erupted, but timing and suitability depend on the individual tooth and the child’s oral-health needs. Some baby teeth with deep grooves may also be considered in certain circumstances.
A dental assessment can determine whether a tooth is fully erupted enough to keep dry during placement, whether there is existing decay and whether a sealant is an appropriate preventive choice. Not every tooth needs a sealant.
Parents can ask about sealants during a child’s routine visit. Limegreen Dental lists children’s dentistry, including sealants and fluoride, as a service. Learn more at Children’s Dentistry.
What happens when a sealant is placed?
The tooth is cleaned and prepared so the coating can bond to the chewing surface. The sealant material is then applied to the grooves and hardened. The exact steps can vary with the material and the tooth being treated.
Sealants generally require no removal of healthy tooth structure. However, the tooth must be isolated and kept dry for the material to bond properly. A dental professional can explain what to expect based on the child’s age, comfort and the teeth involved.
A child should tell a parent or dental professional if the bite feels unusual after a sealant is placed. A small adjustment may be considered if needed.
How long do sealants last, and how are they cared for?
Sealants can wear, chip or come partly off over time, especially on heavily used chewing surfaces. Their condition can be checked during regular dental visits, and a dental professional can advise if repair or replacement is appropriate.
At home, children should continue brushing twice daily with a fluoride toothpaste suitable for their age and follow advice about cleaning between teeth. Sealants only cover selected chewing surfaces; they do not protect the sides of teeth or the spaces between them.
Helping children build independent brushing skills remains important. For age-based guidance on supervision and technique, read When Should Children Start Brushing on Their Own?.
Key takeaways
- Dental sealants are protective coatings placed in the grooves of back teeth.
- They may help reduce cavity risk on chewing surfaces that are difficult to brush well.
- An assessment is needed to decide whether a particular tooth is suitable for a sealant.
- Sealants can wear over time, so their condition should be reviewed during routine dental care.
- Brushing, fluoride toothpaste, dietary habits and cleaning between teeth remain important with or without sealants.
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Have questions about what applies to you?
A dental examination can help determine which options and timing are appropriate for your individual oral health needs.
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