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HomeUncategorizedGlass Ionomer Fissure Sealants Vs Resin-Based Sealants

Glass Ionomer Fissure Sealants Vs Resin-Based Sealants

Dental sealants are a preventive measure used to protect teeth from decay. They are a thin, protective coating that is applied to the chewing surfaces of teeth, especially molars and premolars, which are more prone to cavities due to their deep grooves and pits. There are two main types of dental sealants: glass ionomer and resin-based. In this article, we will compare and contrast glass ionomer fissure sealants and resin-based sealants.

Glass Ionomer Sealant

Glass ionomer fissure sealants are made from a mixture of glass particles, an acid, and a water-soluble polymer. When mixed, they form a paste that can be applied to the tooth surface. The acid in the mixture reacts with the tooth structure to create a strong bond, while the polymer helps to hold the glass particles together. The glass ionomer sealant then hardens, forming a protective layer over the tooth’s surface.

Resin-Based Sealants

Resin-based sealants are made from a plastic material called composite resin. The sealant is applied to the tooth surface as a liquid and then hardened using a special light. The resulting coating is a thin, clear layer that forms a barrier between the tooth surface and bacteria. Unlike glass ionomer dental sealants, resin-based sealants are not recommended for use in children’s primary teeth as they may contain bisphenol A (BPA), which has been linked to health concerns.

Comparison Between Glass Ionomer Sealant and Resin-based Sealants

Both glass ionomer and resin-based sealants are effective at preventing decay in the deep grooves and pits of teeth. However, they differ in terms of durability, strength, and cost. Glass ionomer dental sealants are more suitable for primary teeth, release fluoride, and have antimicrobial properties. They are also less expensive than resin-based sealants. On the other hand, resin-based sealants are more durable, stronger, and have a more aesthetic appearance. They are also better suited for teeth that undergo a lot of pressure from chewing. Let us now understand some differences between glass ionomer sealants and resin-based sealants:

Composition: Glass ionomer sealants are made from a mixture of acrylic acid and glass powder, while resin-based sealants are made from a mixture of resin and filler materials. Glass ionomer sealant materials have a high content of the fluoride-releasing glass, which helps to strengthen the tooth enamel and prevent decay. Resin-based sealants contain fillers such as silica or ceramic particles, which give them greater strength and durability.

Application: In terms of application, both types of sealants require the tooth to be cleaned and dried before application. However, resin-based sealants require a bonding agent to be applied to the tooth surface before the sealant is applied, while glass ionomer sealants do not require any bonding agent for application.

Strength: Resin-based sealants are generally stronger and more wear-resistant than glass ionomer sealants. Resin-based sealants have a higher compressive strength and are less likely to wear down or break over time. This makes them a better choice for teeth that are subject to heavy biting forces, such as molars.

Longevity: When it comes to longevity, resin-based sealants tend to last longer than glass ionomer sealants, but both types of sealants will eventually wear down over time and need to be replaced.

Aesthetics: Resin-based sealants are tooth-colored and, therefore, more aesthetically pleasing, while glass ionomer sealants are usually opaque and more visible. Resin-based sealants can be matched to the color of the tooth, making them more discreet and natural-looking.

Ultimately, the choice between glass ionomer and resin-based sealants will depend on several factors, including the patient’s age, the location and shape of the tooth, and the patient’s oral health history. It is important for patients to discuss their options with their dentist to determine the best course of action for their individual needs.


Dental sealants are an effective measure that can help to protect teeth from decay. It is important for patients to discuss their tooth restoration options with their dentist and make an informed decision based on their individual situation. If you are looking for glass ionomer dental sealants or resin-based sealant for your tooth restoration, then choose  GC America for superior glass ionomer sealant materials that offer excellent protection against decay. Whether you need a glass ionomer or resin-based sealant, GC America offers a wide range of high-quality products that are backed by decades of research and innovation. Contact us today to learn more and make the switch to GC America for your dental sealant needs!

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