Composite resin is a dental material made from a mixture of plastic and fine glass particles. It is commonly used for fillings, bonding, and cosmetic improvements in teeth. The material can be easily shaped to match the natural appearance of teeth, making it a popular choice for restoring damaged or decayed teeth. This type of resin is known for its durability and resistance to wear, while also being less noticeable than traditional metal fillings. Composite resin can be cured using a special light, which hardens the material quickly, allowing for efficient dental procedures.