Which filling materials are typically used in dental restorations?

Composite resin is typically used in dental restorations due to its favorable properties, including aesthetic appeal, bonding capability, and versatility. This material can be color-matched to the surrounding teeth, making it particularly useful for restorations in visible areas. Composite resins consist of a mixture of plastic and fine glass particles, providing strength and durability while allowing for a more natural tooth appearance.

In addition to their aesthetic benefits, composite materials can adhere to the tooth structure, which helps to preserve more of the natural tooth during the preparation process. This is a significant advantage compared to traditional materials, as it can lead to healthier teeth and gums in the long term.

The other filling materials listed, while also used in dental restorations, serve different purposes or are less versatile in terms of aesthetics and bonding. For example, metal alloys are known for their strength and durability but lack the tooth-like appearance that composite resins provide. Glass ionomer is used for its fluoride-releasing properties and can bond to enamel and dentin, but it does not offer the same level of aesthetic appeal as composite resin. Glossy resin typically refers to a surface finish rather than a filling material itself, making it less relevant in the context of dental restorations.