Bis-acrylic is a type of synthetic resin commonly used in dental materials and applications, including dental prosthetics, crowns, and bridges. It is composed of two acrylic components that, when mixed, polymerize to form a durable and aesthetically pleasing material. Bis-acrylics are favored for their ease of handling, low shrinkage, and excellent bonding properties. They also exhibit good translucency and color stability, making them suitable for various dental restorations.