An implant is a medical device that is placed inside the body to replace or support a biological structure. Common types of implants include dental implants, which replace missing teeth, and orthopedic implants, such as screws or plates used to stabilize broken bones. Implants can be made from various materials, including titanium and silicone, and are designed to integrate with the body over time. Implants are often used in surgical procedures to improve health and quality of life. For example, breast implants are used in cosmetic surgery to enhance breast size, while pacemakers are implanted to help regulate heartbeats. The success of an implant depends on proper placement and the body's response to the foreign material.