What is one major advantage of using glass ionomer sealants?

One major advantage of using glass ionomer sealants is their ability to bond chemically to the tooth surface. This chemical bond creates a strong adhesion between the sealant and the enamel, which enhances the sealant's effectiveness in preventing caries in the pits and fissures of teeth. The chemical bond is particularly beneficial because it allows the sealant to remain in place even under conditions that might challenge mechanical retention, such as saliva or moisture.

Additionally, glass ionomer materials release fluoride over time, which can provide additional benefits in terms of caries prevention. This characteristic makes them especially useful in pediatric dentistry, where young patients may be at a higher risk for cavities.

While other sealants like resin-based types may offer varying advantages in terms of aesthetics or longevity, the chemical bonding property of glass ionomers stands out as a key reason for their application in dental practice.