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Related to hydroxylapatite: hydroxyapatite, hydroxyapatite crystal


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


/hy·drox·yl·ap·a·tite/ (hi-drok″sil-ap´ah-tīt) 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 ?
A slurry of 60% hydroxylapatite (Bio-Rad, Hercules, CA, USA) in TEGM buffer was added to adsorb the estrogen receptor (Erdos et al.
Hydroxylapatite beads as an experimental model to study adhesion of lactic acid bacteria from the oral cavity to hard tissues.
Radiesse, composed of calcium hydroxylapatite, is generally injected deeper and used to fill even deeper furrows than Perlane or Juvederm Ultra Plus can fill Rosen says this product can also be used to replace the volume deficit in the cheekbone area that results from normal age-related bone and fat loss.
associated with hydroxylapatite deposition disease without cortical erosion.
The desalted PE was applied on a hydroxylapatite (HA) column pre-equilibrated with 1 mM phosphate buffer (pH 7.
Handbook of Bioactive Ceramics Volume II: Calcium Phosphate and Hydroxylapatite Ceramics, pp.
Food and Drug Administration-approved urethral bulking agents include collagen (Conti-gen), calcium hydroxylapatite (Coaptite), and carbon bead particles (Durasphere).
They are made up of several types of materials of synthetic, man-made and natural origin, with the most popular ones being collagen-based fillers, poly lactic-based fillers, calcium hydroxylapatite fillers and hyaluronic acid (HA) fillers.
State of the art: hydroxylapatite coatings for dental implants.
The use of adjectival prefixes for anions is to be preferred instead of modified Levinson suffixes; accordingly, six minerals should be renamed as follows: apatite-(CaF) to fluorapatite, apatite-(CaOH) to hydroxylapatite, apatite-(CaCl) to chlorapatite, ellestadite-(F) to fluorellestadite, ellestadite-(OH) to hydroxylellestadite, phosphohedyphane-(F) to fluorphospho-hedyphane.
Klosa, Influence of pore dimensions on bone ingrowth into porous hydroxylapatite blocks used as bone graft substitutes: A histometric study, Int.
An experimental study of healing around hydroxylapatite implants installed with autogenous iliac bone graft for jaw reconstruction.