
Dental sealants are a trusted and effective tool in modern dentistry for preventing cavities, especially in children and teenagers. If you are wondering, what are dental sealants made of, the answer is simple yet important: they are made from a thin plastic resin that bonds securely to the chewing surfaces of teeth, creating a protective barrier against decay.
At Al Sanabel Dental Department, we believe that informed patients make the best decisions about their dental care. In this article, we explore the dental sealant composition, the types of materials used, and their safety for patients of all ages.
What Are Dental Sealants?
Dental sealants are a preventive dental treatment designed to protect the grooves and fissures on the biting surfaces of back teeth (molars and premolars) from plaque and food particles. These areas are especially prone to cavities because they are harder to clean with a toothbrush alone.

Sealants form a protective shield over the enamel of each tooth, significantly reducing the risk of tooth decay.
What Are Dental Sealants Made Of?
Dental sealants are primarily made from plastic resins. These resins are designed to be safe, strong, and highly adhesive to the tooth’s surface.
The basic dental sealant composition includes:
- Resin-based materials: Most common, typically composed of monomers like Bis-GMA (Bisphenol A-Glycidyl Methacrylate).
- Glass ionomer cements: Used in some cases, especially when moisture control is difficult. They release fluoride over time, providing additional protection.
Once applied, the sealant material hardens (usually with the help of a special curing light) to form a durable barrier.
Are Dental Sealants Made of Plastic?
Yes. Dental sealants are made from a thin, medical-grade plastic resin. This plastic is specially formulated to be safe for use in the mouth and to bond effectively to the tooth surface.
The plastic layer created by the sealant is very thin, nearly invisible to the naked eye, and provides years of protection against cavities.
Do Dental Sealants Contain BPA?
A common question regarding sealants is about the presence of BPA in dental sealants, a chemical found in some plastics.
Here’s what you should know:
- Minimal BPA presence: Some dental sealants may contain trace amounts of BPA as a by-product of the manufacturing process.
- Extremely low levels: Studies show that the amount of BPA exposure from dental sealants is extremely low — significantly lower than the BPA found in everyday dust or food packaging.
- Safety confirmation: Leading organizations, including the American Dental Association (ADA) and the U.S. Food and Drug Administration (FDA), have confirmed that dental sealants are safe and that the benefits of cavity prevention far outweigh any minimal BPA exposure risk.
At Al Sanabel Dental Department, we use high-quality sealants and ensure our patients receive the safest, most effective materials available.
Types of Dental Sealant Materials
There are different types of sealant materials used in modern dentistry:
Type | Description | Advantages |
---|---|---|
Resin-based sealants | Made from plastic resins such as Bis-GMA | Highly durable, long-lasting protection |
Glass ionomer sealants | Made from a mix of glass particles and acrylic acids | Fluoride-releasing, useful for partially erupted teeth |
Polyacid-modified resin sealants | Combine properties of resin and glass ionomer materials | Improved adhesion and fluoride release |
Choosing the right type of sealant depends on the specific needs of the patient, including their age, oral health, and risk of tooth decay.
How Are Dental Sealants Applied?
Applying dental sealants is a quick, painless process:
- Cleaning: The tooth surface is cleaned thoroughly.
- Preparation: The tooth is dried and a mild acid solution is applied to roughen the surface for better bonding.
- Application: The sealant material is painted onto the tooth.
- Curing: A special light is used to harden the sealant quickly.
The entire procedure typically takes only a few minutes per tooth and provides protection for years.
How Safe Are the Materials in Dental Sealants?
The dental sealant materials are extensively tested for safety and effectiveness. Here’s why you can trust dental sealants:
- Biocompatible: They are designed to be safe for contact with oral tissues.
- Long track record: Dental sealants have been used safely in dentistry for decades.
- Minimal side effects: Allergic reactions are extremely rare.
- Significant benefits: Studies show that sealants can reduce the risk of tooth decay in molars by nearly 80 percent.
At Al Sanabel, we carefully select sealant materials that meet the highest international safety standards, ensuring peace of mind for you and your family.
Benefits of Dental Sealants
- Cavity Prevention: Protects the most vulnerable areas of teeth.
- Cost-Effective: Less expensive than fillings, crowns, or other restorative treatments.
- Non-invasive: No drilling or anesthesia needed.
- Quick Application: Completed in a single visit.
- Durable Protection: Lasts several years with proper oral hygiene.
Adding dental sealants is one of the simplest and most effective steps you can take toward maintaining long-term oral health.
Frequently Asked Questions (FAQs)

1. What materials are used in dental sealants?
Dental sealants are primarily made from plastic resins, particularly Bis-GMA or related compounds. Some sealants may also use glass ionomer materials that release fluoride.
2. Are dental sealants made of plastic?
Yes. They are made from thin, medical-grade plastic resins that bond securely to tooth enamel.
3. Do dental sealants contain BPA?
Some sealants may have trace amounts of BPA, but the levels are extremely low and considered safe by leading health organizations.
4. Are there different types of dental sealant materials?
Yes. Resin-based sealants, glass ionomer sealants, and polyacid-modified resin sealants are among the commonly used materials, each offering specific advantages.
5. How safe are the materials in dental sealants?
The materials used in dental sealants are rigorously tested for safety and effectiveness. They are considered very safe for both children and adults, with significant benefits for cavity prevention.
Understanding what dental sealants are made of empowers you to make informed decisions about preventive dental care for yourself and your family. Made from safe, durable materials, dental sealants are an outstanding investment in long-term oral health.
At Al Sanabel Dental Department, our mission is to protect and enhance your smile using the most advanced and safest materials available. If you are considering dental sealants or have any questions about your oral health, our team is here to help.
Protect your smile today with expert care from Al Sanabel Dental Department. Book your consultation now.