Dental tooth fillings are restorative materials used to repair teeth that are affected by decay, fractures, or wear. When a dentist identifies a cavity, the decayed portion is removed, and the space is filled with a suitable material. Common types of filling materials include amalgam (a mixture of metals), composite resins (tooth-colored materials), gold, and porcelain. Each material offers different advantages, such as durability, aesthetic appeal, and cost. Composite resins are particularly popular for visible teeth because they can be matched to the natural tooth color, while amalgam is favored for its strength and longevity in posterior teeth. The process of getting a filling typically involves local anesthesia for comfort, followed by the preparation of the cavity and placement of the chosen filling material. Proper oral hygiene and regular dental check-ups can prolong the lifespan of fillings, which may eventually need replacement due to wear or new decay. Overall, dental fillings play a crucial role in maintaining oral health by restoring tooth function and preventing further damage.