Hydroxyapatite is an inorganic compound with a crystalline form of calcium phosphate. Its structure closely resembles the natural mineral that makes up the majority of the mineral matrix of bones and tooth enamel, making it biocompatible and allowing it to be used without the need for hypersensitivity testing.
Hydroxyapatite is highly biocompatible, meaning it is not rejected by the human body and is well-accepted when used in implants or grafts.
Hydroxyapatite is bioactive, which means it can stimulate biological responses, such as bone growth, when implanted in living tissues.
It facilitates bone growth by providing a favorable surface for cell adhesion and bone tissue formation.
Nanometric size
Micrometric size
Millimetric size
Hydroxyapatite can be used in some oral hygiene products, such as toothpaste, to remineralize tooth enamel and help prevent cavities.
Hydroxyapatite is widely used in dentistry, particularly in dental implants, due to its excellent biocompatibility and ability to integrate well with natural bone, promoting osseointegration.
In cosmetics, hydroxyapatite is used in skincare products due to its soothing properties and its ability to promote cell regeneration.
In powder or capsule form, hydroxyapatite is used as a dietary supplement, providing calcium and phosphorus in a form that is easily utilized by the body. These supplements are especially popular among individuals with increased calcium needs, such as the elderly, pregnant women, and athletes.
Recent research is exploring the use of hydroxyapatite nanoparticles in food packaging due to their antimicrobial properties. When incorporated into packaging materials, these particles can help extend the shelf life of food by preventing the proliferation of bacteria and other pathogens.
In some food products, hydroxyapatite can be used as an additive to improve texture. Its crystalline structure can provide a more pleasant mouthfeel and enhance the stability of products like beverages and desserts.
In orthopedics, hydroxyapatite is used as a coating for joint prostheses, such as hips and knees, to improve the bond between the implant and bone.
Due to its similarity to the bone mineral matrix, hydroxyapatite is used in bone grafts and as a filling material for bone defects. It can stimulate bone regeneration, promoting the growth of new bone tissue.
• Remineralization of enamel
• Prevention of tooth sensitivity
• Prevention of cavities
• Protection of the tooth surface
• Restoration of natural whiteness
• Pain reduction
• Protection against ultraviolet radiation from the Sun
• Soothing properties for the skin
• Promotion of cell regeneration
• Supplementation to reduce bone loss
• Supplementation to promote bone strength
Hydroxyapatite is also being researched for new applications, such as in catalysis, nanomedicine, biotechnology, and pharmaceuticals. There is also research into controlled drug delivery technologies. As we continue to learn more about this powerful and versatile material, consider incorporating hydroxyapatite into your research.
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