An implant is a medical device manufactured to replace, support, or enhance a biological structure in the body. They can be made from a variety of materials, including metals, plastics, ceramics, or tissue from the body, and are used for purposes like replacing a tooth root, providing long-term contraception, or supporting a damaged joint. Examples include dental implants, hip replacements, contraceptive implants, and cochlear implants.

Common types of implants:

Dental implants: These are synthetic replacements for a tooth root, providing a base for non-removable teeth or more secure dental restorations.

Contraceptive implants: Tiny rods inserted under the skin of the upper arm that release a hormone to prevent pregnancy for up to three years.

Orthopedic implants: Devices like hip or knee replacements, which can be permanent, are used to support damaged joints or strengthen bones.

Cochlear implants: These devices help people with hearing loss by converting sound signals into electrical signals that stimulate the auditory nerve.

Other types: Implants can also be used to deliver medication, monitor bodily functions, or assist damaged organs.

How they work:

Material: Implants can be made from a range of synthetic materials like titanium or plastic, or from biological tissues.

Placement: They are inserted into the body to either permanently remain or be removed once no longer needed.

Function: Depending on the type, they can act as a direct replacement, a support structure, or a device to deliver a therapeutic agent.