Calcium phosphates are a group of inorganic compounds made up of calcium and phosphate ions. They are commonly found in nature, particularly in bones and teeth, where they provide structural support and strength. These compounds are also used in various applications, including fertilizers, food additives, and dental products. In the medical field, calcium phosphates are important for bone health and are often used in bone grafts and dental implants. They can help promote bone regeneration and healing due to their biocompatibility and ability to mimic natural bone mineral.