Hydroxyapatite toothpastes contain hydroxyapatite particles in micro- or nanocrystalline form that have been shown to deposit and restore demineralized enamel surfaces. As such, they are currently being explored as a fluoride-free anti-caries agent. This narrative review article aims to summarize ...

March 23, 2022 - HAP is well-known to be biomimetic, or a bionic active ingredient when used in oral care (13, 14). Human enamel consists of approximately 97% HAP (15, 16). By synthesizing this HAP, it can be used as a remineralizing agent in oral care products ...

August 31, 2026 - The double-blind randomized study above suggested that a hydroxyapatite toothpaste could be a useful tool for people at a high risk of developing cavities because it can promote remineralization without adding extra fluoride.

June 7, 2023 - This is due to the morphological and structural similarity of nanosized hydroxyapatite particles to tooth hydroxyapatite crystals. These nanoparticles have been incorporated into various dental formulations for different applications to ensure comprehensive oral healthcare. To prevent dental caries, several nHA based dentifrices, mouth rinsing solutions and remineralizing pastes have been developed.

August 13, 2024 - When people brush with toothpaste ... in the enamel. By directly integrating with the enamel and remineralizing and repairing the surface of teeth, it helps restore the tooth structure and reduces sensitivity....

December 9, 2019 - It is envisaged that the presence of additional extrinsic sources of stabilized Ca2+ and PO43– ions could augment the natural caries preventive and remineralization potential of saliva by increasing diffusion gradients favoring faster and deeper subsurface remineralization.20 One of the new caries remineralizing technologies is the biomimetic systems, among which are the synthetic hydroxyapatite (HAP; Ca5(PO4)3(OH) applied in microcluster or nanocrystalline forms in oral care products.21,22 HAP is a bioactive and biocompatible material with similar chemical composition to the apatite crystal

September 26, 2025 - Instead of relying on fluoride to chemically strengthen enamel, hydroxyapatite aims to repair and rebuild the enamel’s structure physically. This makes it a natural remineralizing toothpaste ingredient since it essentially mimics the biological makeup of teeth.

May 22, 2026 - According to a systematic review in Clinical Oral Investigations, nano-hydroxyapatite shows promise for enhancing remineralization and helping prevent enamel demineralization.

July 30, 2025 - Hydroxyapatite toothpaste works by filling in tiny cracks and weak spots on teeth caused by acids in foods. HAP sticks to teeth and puts calcium and phosphate back into the enamel. This process is called remineralization.

July 10, 2021 - Enamel does not contain living cells and thus is susceptible to damage that cannot be repaired by the human body. Artificial regeneration of these structures is theorized, but no widespread treatment of dental caries lesions has been developed. This review is an analysis of relevant techniques for the mineralization of hydroxyapatite (HAP) in enamel.

June 30, 2026 - A randomized clinical trial comparing nano-hydroxyapatite toothpaste directly against fluoride toothpaste for white spot lesion remineralization found that n-HA performed better in terms of both remineralization and reduction in lesion extent.

December 10, 2025 - Discover how hydroxyapatite toothpaste helps rebuild enamel naturally, restoring lost minerals, strengthening teeth & reducing sensitivity over time

Once enamel is lost, the body cannot regenerate it, but the good news is that it can be remineralized with the right care and ingredients. One of the most effective natural remineralization agents is hydroxyapatite, a mineral that makes up 97% ...

March 20, 2025 - Micro-hydroxyapatite is larger in particle size and provides strong remineralization benefits, though it primarily works on the outer enamel surface.

Additionally, due to its alkaline ... creates a more favorable environment for remineralization, the process of restoring lost minerals to tooth enamel....

February 3, 2025 - Mimics tooth enamel: Hydroxyapatite remineralizes teeth by directly replacing lost calcium and phosphate in the enamel.

April 8, 2011 - This in vitro study evaluated the effects of nano-hydroxyapatite (n-HAp) toothpastes on remineralization of bovine enamel and dentine subsurface lesio…

December 10, 2024 - How does microhydroxyapatite help with remineralization? This bioactive mineral binds to exposed hydroxyapatite in enamel, filling in nicks, scratches, and microscopic damage.

September 23, 2023 - Strontium has been shown to possess some desensitizing properties by blocking or reducing the transmission of nerve impulses in the dentin and remineralization properties, thus strengthening the enamel and helping to repair the early stages of tooth decay [46]. When silicon is substituted into the hydroxyapatite structure, the resulting material exhibits enhanced remineralization properties and increased resistance to acid attacks without causing any harm or irritation to the teeth or gums [47].