Segmentation by type classifies sealants into resin‑based, glass‑ionomer, and hybrid formulations, each with distinct material properties and clinical indications. Resin‑based sealants, composed of bis‑GMA or UDMA matrices, offer superior penetration depth and durability, dominating the market due to high retention rates in low‑moisture environments. Glass‑ionomer sealants, containing fluoro‑aluminosilicate glass, release fluoride ions, providing an added preventive benefit in high‑caries‑risk populations; their moisture tolerance makes them preferable in pediatric settings, though they exhibit lower mechanical strength. Hybrid sealants integrate resin and glass‑ionomer components, seeking to balance retention with fluoride release, and are gaining traction in practices that value both longevity and therapeutic effect. Each type contributes to market volume proportionally to its adoption across the application segments, with resin‑based products leading, followed by glass‑ionomer and hybrids, reflecting practitioner preferences for performance, handling characteristics, and patient risk profiles.