What are composite resins primarily used for in dentistry?

Composite resins are primarily used for filling cavities and making aesthetic restorations due to their versatility and desirable properties. They are designed to closely match the natural color of teeth, making them an ideal choice for both visible restorations and repair of dental defects. Their adhesive qualities allow them to bond well to tooth structure, which enhances the integrity of the restoration and helps prevent further decay.

In addition to their cosmetic appeal, composite resins can be formulated to have various levels of strength and wear resistance, making them suitable for anterior teeth (where appearance is essential) and posterior teeth (where strength is more of a concern). This dual purpose highlights their primary role in restorative dentistry, satisfying both functional and aesthetic needs. Options relating to crowns and bridges, dental impressions, and orthodontic appliances involve different materials and techniques that are not the main application of composite resins in restorative practices.