hydroxylapatite

(redirected from Hydroxyapetite)
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hy·drox·y·ap·a·tite

(hī-drok'sē-ap'ă-tīt),
A natural mineral structure that the crystal lattice of bones and teeth (that is, amorphous hydroxyapatite) closely resembles; used in chromatography of nucleic acids; also found in pathologic calcifications (for example, atherosclerotic aortas).
Synonym(s): hydroxylapatite

hydroxylapatite

/hy·drox·yl·ap·a·tite/ (hi-drok″sil-ap´ah-tīt) hydroxyapatite.

hydroxyapatite

, hydroxylapatite (hī-drok″sē-ap′ă-tīt″) (″sĭ-lap′ă-tīt″) [ hydro- + ²oxy- + apatite ]
Ca10(PO4)6(OH)2; the calcium- and phosphorus-containing compound that constitutes the bulk of the mineral structure of bones and teeth. In teeth it is soluble in the acids of soft drinks or carbohydrate fermentation, but it becomes decay-resistant fluoroapatite after combining with fluoride ions present in fluoridated water or fluoride toothpastes. Under some circumstances, it can deposit in and around joints, producing periarthritis or calcific tendinitis.
References in periodicals archive ?
Chlorhexidine has been shown to be an effective agent in plaque inhibition (Loe et al 1976) because it is well retained in the oral cavity, reacting reversibly with receptors in the mouth due to its affinity for hydroxyapetite and acidic salivary protein (Rolla, Loe and Schiott 1970).
Following incubation, bound and free steroid was separated by hydroxyapetite adsorption as previously described (14).
5) can dissolve the hydroxyapetite crystals in enamel.