
sealants
Sealants are protective coatings or materials applied to surfaces to prevent damage, leaks, or contamination. In dentistry, they are thin, plastic-like coatings placed on the chewing surfaces of back teeth to block out food and bacteria, reducing the risk of cavities. In construction, sealants are used to fill gaps and cracks in buildings, keeping out water, air, and dirt, thus improving energy efficiency and durability. Essentially, sealants act as barriers that preserve the integrity of surfaces by sealing out harmful elements, extending the lifespan of the object or structure they protect.