Demineralization

Demineralization is a physiological and pathological process characterized by the removal of mineral ions, predominantly calcium and phosphate, from the inorganic hydroxyapatite matrix of hard tissues such as bone, enamel, and dentin (Abou Neel et al., 2016). In bone, this process is primarily mediated by osteoclasts as part of normal remodeling and systemic mineral regulation, but excessive demineralization leads to skeletal fragility and diseases like osteoporosis (NIH/NIAMS). In dental health, demineralization occurs when the pH of the oral environment drops below a critical threshold—often due to organic acids produced by bacteria—leading to the breakdown of tooth enamel and the formation of dental caries (StatPearls, 2024). Pharmacological strategies do not target demineralization as a single molecule but rather focus on the cellular and chemical drivers of the process. For instance, bisphosphonates and denosumab inhibit osteoclast-mediated bone resorption, while fluoride ions are used topically to stabilize dental mineral structures and promote remineralization (Mayo Clinic, 2023).

Other names

Bone resorptionDecalcificationMineral lossEnamel demineralizationOsteoclastic resorption

Drugs targeting this process typically inhibit osteoclast activity (anti-resorptive agents), promote osteoblast activity (anabolic agents), or chemically stabilize the mineral matrix by incorporating ions that increase resistance to acid dissolution (e.g., fluoride forming fluorapatite).