Which sealant material is the most commonly used in the United States?

Composite resin is the most commonly used sealant material in the United States due to its favorable characteristics that make it ideal for pit and fissure sealant applications. This type of sealant bonds well with the enamel surface of the tooth, creating a strong seal that helps prevent decay in the vulnerable grooves of molars.

Additionally, composite resins are known for their durability and aesthetic qualities, as they can be color-matched to teeth, allowing for a more natural appearance. Their light-cured formulation provides convenience and allows for quick setting under ultraviolet or blue light, ensuring that the sealant can be placed efficiently during a dental visit.

While other materials like glass ionomer and self-curing resins have their benefits, they are not as widely applied as composite resins in clinical practice. Glass ionomer may be preferred in some cases for its fluoride-releasing properties, but the overall versatility and strength of composite resins position them as the most common choice among dental professionals.