Divalent cations in the oral cavity

Divalent cations in the oral cavity, including calcium (Ca2+), magnesium (Mg2+), zinc (Zn2+), and stannous (Sn2+) ions, are essential inorganic components that maintain oral health through various chemical and biological mechanisms (StatPearls, 2023). These ions are primarily responsible for the remineralization of dental hard tissues, where they integrate into the crystal lattice of enamel to form acid-resistant structures like hydroxyapatite (PubMed, PMID: 28603355). Beyond structural maintenance, zinc and stannous ions are widely used in therapeutic dentifrices for their potent antimicrobial effects, which involve the disruption of bacterial cell membranes and the inhibition of plaque-forming enzymes (Journal of Clinical Periodontology, 2019). They also play a role in reducing dentin hypersensitivity by precipitating within dentinal tubules to block external stimuli. While these ions are critical for dental therapy, the term "Other divalent cations in the oral cavity" represents a broad chemical category of minerals rather than a specific protein or receptor target.

Other names

Divalent metal ionsSalivary mineralsOral divalent cationsDivalent metal cations

Divalent cations such as calcium and magnesium promote the remineralization of dental enamel by forming hydroxyapatite, while zinc and stannous ions provide antimicrobial effects by inhibiting bacterial enzymes and disrupting biofilm integrity (StatPearls, 2023; PubMed, PMID: 28603355).