Which material is commonly used for dental fillings?

In dental practice, various materials are utilized for fillings, each with unique properties and applications. The option indicating that "All of the above" materials are commonly used is accurate because plastic, gold, and amalgam all serve as effective options for dental restorations.

Amalgam, a durable mixture of metals including silver and mercury, is widely recognized for its strength and longevity. It is particularly effective for posterior teeth where the forces of chewing are greatest.

Gold is another classic material used for filling cavities, known for its durability and biocompatibility. Its aesthetic appeal, combined with its resistance to corrosion, makes it an excellent choice for long-lasting restorations, although it tends to be more expensive than other materials.

Plastic, often in the form of composite resins, has gained popularity for fillings due to its tooth-like appearance, making it suitable for visible areas. It bonds chemically to the tooth structure and can be molded to fit the cavity precisely, providing both functional and aesthetic benefits.

The versatility of these materials reflects advancements in dental restoration techniques, catering to different patient needs and preferences. Each material's specific properties contribute to its use in various clinical situations, justifying the response that all are valid options for dental fillings.