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Published: 29/05/2026
Dental sealants is a preventive dental method that helps reduce the risk of tooth decay in young children, especially on molars with many deep pits and fissures that are difficult to clean. So why should parents have their children get dental sealants early? What benefits does this method bring and how is the procedure performed? Let’s explore in detail with Phuong Thanh Dental Center through the article below.
Dental sealants is a method that uses specialized materials such as composite or glass ionomer to seal the pits and fissures on the chewing surface of molars. After application, the tooth surface becomes smoother, making oral hygiene easier and more effective.
By limiting food particles trapped in deep fissures, this method helps reduce plaque buildup and prevent bacterial growth that causes tooth decay. This is considered an effective early cavity prevention solution, especially suitable for young children during the eruption of permanent teeth.
Teeth consist of the crown and root, separated by the cervix. Inside each tooth is the dental pulp, covered by a layer of dentin and tooth enamel that is strong and healthy. For molars, the chewing surface usually has many small pits and fissures, which are also the locations where food and bacteria easily accumulate, thereby increasing the risk of tooth decay.
According to many studies, tooth decay at the chewing surface pits and fissures accounts for a high percentage of tooth decay cases in children.
The reason is that tooth fissures are usually deep and narrow, making it difficult for a toothbrush to clean completely. Food and plaque easily accumulate over time, creating conditions for bacterial growth and tooth decay.
Additionally, children aged 6-12 years are in the stage when permanent teeth are erupting. Since tooth enamel is not yet fully developed, their ability to resist bacteria is still weak. Therefore, teeth are very prone to decay, especially at the pits and fissures on the chewing surface. This condition usually occurs frequently in the first few years after tooth eruption and can continue if not properly cared for.
That’s why dental sealants are considered an effective solution to protect children’s teeth, reduce the risk of tooth decay and maintain a healthy set of teeth for the long term.
Effective cavity prevention: Dental sealants help reduce the risk of tooth decay, especially on newly erupted permanent molars in young children – where food and bacteria easily accumulate.
Easy oral hygiene: The sealant layer creates a smoother tooth surface, supporting effective brushing and plaque removal, thereby reducing the risk of bacteria harming tooth enamel.
Long-term tooth protection: Early detection and prevention helps preserve natural tooth structure, reduce oral diseases and avoid complex treatments in the future.
Quick and gentle procedure: The dental sealant procedure is safe, does not cause pain or sensitivity, helping children feel comfortable and able to eat and chew normally after treatment.
Cost-effective oral care: Compared to heavy cavity treatment methods, dental sealants is a simple solution with reasonable costs but provides long-term protective effects for children’s teeth.
For children, the materials commonly used in dental sealants include:
This is a material made from silicate glass powder with a color similar to natural teeth, ensuring aesthetic results after the procedure. After application, the material has the ability to release fluoride to strengthen tooth enamel, increase resistance to tooth decay and support remineralization for tooth enamel and damaged dentin. Additionally, the material helps limit bacterial activity and reduces the impact of plaque on tooth surfaces.
This is a specialized plastic layer that is transparent or similar in color to natural teeth. When applied to the chewing surface of molars, the sealant helps fill deep pits and fissures, creating a flatter tooth surface that is easier to clean. As a result, food particles are less likely to stick in the tooth fissures, limiting the formation of plaque and bacteria that cause tooth decay, effectively protecting children’s teeth.
The dental sealant procedure for cavity prevention in children at Phuong Thanh Dental Clinic is performed according to the following standard steps:
Step 1: The dentist cleans and polishes the surface of the pits and fissures with a specialized brush and polishing powder to remove plaque and food residue remaining on the teeth.
Step 2: Then, the tooth surface will be treated with a special solution to increase the adhesion between the tooth and sealant material, helping the sealant more stable.
Step 3: Finally, the dentist applies the sealant material into the pits and fissures on the chewing surface of the molars. With composite material, the sealant will harden on its own. If light-cured composite material is used, the dentist will use a special light to harden the sealant layer, completing the tooth protection procedure for the child.
To maintain long-term cavity prevention effectiveness after dental sealants, parents should guide and support their children in proper daily oral care.
Children should brush gently with a soft-bristled toothbrush combined with fluoride toothpaste to help clean teeth and better protect tooth enamel. Besides, parents can have children use dental floss to clean between teeth, remove food residue and limit plaque buildup.
Additionally, remind children to avoid using their teeth to bite hard objects like ice, pens or fingernails to reduce the risk of tooth enamel chipping or affecting the protective sealant layer. Regular dental check-ups every 3-6 months are also essential so the dentist can check the condition of the sealant, and early detect and address any oral health problems if present.
When receiving treatment at Phuong Thanh Dental Center, parents and children will be given detailed guidance by the dentist on how to properly care for and maintain oral hygiene. This not only helps increase the effectiveness of cavity prevention but also helps maintain healthy teeth throughout the child’s development.
The answer is no. This is a simple method, performed quickly and does not affect the structure of the natural tooth. Throughout the procedure, children hardly feel any pain or sensitivity, and after completion, they can still eat and chew normally.
The dental sealant layer can protect teeth for many years if the child is provided with proper oral care. However, in cases where oral hygiene is not good or the child frequently bites hard objects, the sealant can wear down or fall off over time. Therefore, parents should take their children to regular dental check-ups so the dentist can examine and reapply sealant if necessary to maintain long-term cavity prevention effectiveness.
The answer is no. Dental sealants is a cavity prevention method for healthy teeth or teeth without decay damage. If the child’s tooth is already decayed in the pits and fissures, parents should take the child to the dental clinic for examination and the dentist will recommend an appropriate treatment method before considering sealant application.
Overall, dental sealants is an effective, safe and suitable cavity prevention solution for young children at reasonable cost. To maintain long-term effectiveness, children need to be properly cared for and revisit the dental clinic every 3-6 months for regular check-ups to monitor tooth condition and the protective sealant layer.
Understanding that oral health and a beautiful smile for children are always a concern of parents, Phuong Thanh Dental Center provides dedicated, safe and high-quality dental care services for children. When receiving dental sealant treatment for cavity prevention at Phuong Thanh Dental Center, parents can be assured because:
Children are directly examined and treated by a team of professional dentists with extensive experience in pediatric dentistry. The dentist works gently, with proper technique and always creates a comfortable feeling to encourage children to cooperate better throughout the treatment process.
Phuong Thanh Dental Center uses high-quality, safe sealant materials with clear origin to ensure long-term protective effects for children’s teeth. At the same time, modern equipment systems support the examination and dental sealant procedure to be quick, accurate and safe.
Besides treatment quality, the dental clinic space is carefully designed to create a friendly and comfortable feeling for children. Children will experience a gentle examination environment, helping to reduce anxiety and create comfort with every dental visit.
Sa Dec Branch: 483 Hung Vuong, Cai Son Block, Sa Dec Ward, Dong Thap Province.
Hotline: 02773 95 6868
Cao Lanh Branch: 783 Pham Huu Lau, Cao Lanh Ward, Dong Thap Province (Dong Thap University Campus)
Hotline: 02773 95 6869
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