• As of 2019[update], the use of hydroxyapatite, or its synthetically manufactured form, nano-hydroxyapatite, is not yet common practice. (wikipedia.org)
  • The aim of the study was to assess the efficacy of three methods of enamel remineralization on initial approximal caries: (1) a nano-hydroxyapatite gel, (2) gaseous ozone therapy, (3) combination of a nano-hydroxyapatite gel and ozone. (nature.com)
  • Patients (n = 92, age 20-30 years) with initial approximal enamel lesions on premolar and molar teeth (n = 546) were randomly allocated to three groups subjected to a 6-months treatment: Group I: domestic nano-hydroxyapatite remineralizing gel, group II: in-office ozone therapy, group III: both domestic remineralizing gel and ozone therapy. (nature.com)
  • Thus nano-hydroxyapatite gel and ozone therapy exert some capacities to remineralize approximal enamel and dentine subsurface lesions of premolar and molar teeth. (nature.com)
  • Moreover, the combination of both methods produces the best effect compared to nano-hydroxyapatite or ozone therapy applied alone. (nature.com)
  • One approach is to remineralize the lesion body with fluoride, casein phosphopeptide amorphous calcium phosphate (CPP-ACP) or nano-hydroxyapatite (nHAP). (nature.com)
  • Electrospinning of fibrous scaffolds containing nano-hydroxyapatite (nHAp) embedded in a matrix of functional biomacromolecules offers an attractive route to mimicking the natural bone tissue architecture. (ad-astra.ro)
  • Electrospinning of biomaterials composed of polyhydroxybutyrate-co-(3-hydroxyvalerate) with 2% valerate fraction (PHBV), nano-hydroxyapatite (nHAp), and Bombyx mori silk fibroin essence (SF), Mw = 90KDa, has been achieved for nHAp and SF solution concentrations of 2 (w/vol) % each and 5 (w/vol) % each. (ad-astra.ro)
  • In the present study, we evaluated molecular pathways underlying the intracellular balance between redox homeostasis and extracellular matrix mineralization of DPSCs in the presence of composite scaffolds made of alginate and nano-hydroxyapatite (Alg/HAp). (uni-regensburg.de)
  • A nano-hydroxyapatite toothpaste (synthetic hydroxyapatite toothpaste) or other hydroxyapatite toothpaste can do the same for oral health. (trysnow.com)
  • So, first and foremost, what exactly is hydroxyapatite and nano-hydroxyapatite toothpaste (synthetic hydroxyapatite), and why is it in many brand formulas? (trysnow.com)
  • With the advances on biomaterials research have suggested that the best osteoconductivity of hydroxyapatite could be achieved if the crystal was closer to the structure, size and morphology of biological apatite, so the nano-hydroxyapatite (nano-HA) is of current interest. (bvsalud.org)
  • The aim of this study was to evaluate the biocompatibility and osteoconductive in surgical defects filled with spheres of nano-hydroxyapatite containing strontium 1% (nano-SrHA), nano-hydroxyapatite stoichiometric (nano-HA) when compared to the blood clot (control). (bvsalud.org)
  • Bone is a nanocomposite that mainly contains nano-sized hydroxyapatite (HAp) crystals and the fibrous protein collagen. (aiche.org)
  • In this study, we compared the osteoinductive potential of BMP-2 homodimer with a heterodimer of BMP-2/7, both delivered via a collagen-hydroxyapatite (CHA) scaffold delivery system, with the aim to reduce the overall therapeutic BMP doses and the associated side-effects. (lu.se)
  • We first show that the incorporation of hydroxyapatite in collagen-based BMP delivery systems is pivotal for achieving efficient BMP sequestration and controlled release. (lu.se)
  • Incorporation of hydroxyapatite (HA) in a collagen scaffold dramatically improves bone morphogenic protein (BMP) sequestration via biophysical interactions with BMP, thereby providing more controlled BMP release compared with pristine collagen. (lu.se)
  • Calcium hydroxylapatite combines high elasticity and viscosity with an ability to induce long-term collagen formation making it an ideal agent for a global facial approach. (jcadonline.com)
  • Synthesis of Hydroxyapatite/Collagen (HA. (yildiz.edu.tr)
  • A new biomimetic precipitation technique was developed to synthesize hydroxyapatite/collagen nanocomposites. (yildiz.edu.tr)
  • These results suggest that the hydroxyapatite/collagen nano-composites are promising biomaterials for bone tissue engineering. (yildiz.edu.tr)
  • Urethral bulking agents reported in the literature include autologous fat, glutaraldehyde cross-linked bovine collagen, calcium hydroxylapatite, pyrolytic carbon-coated beads, polydimethylsiloxane, ethylene vinyl alcohol copolymer, dextranomer hyaluronic acid, and polytetrafluoroethylene. (medscape.com)
  • Each technique yields hydroxyapatite crystals of varied characteristics, such as size and shape. (wikipedia.org)
  • The mineral ions introduced during remineralisation restore the structure of the hydroxyapatite crystals. (wikipedia.org)
  • If fluoride ions are present during the remineralisation, through water fluoridation or the use of fluoride-containing toothpaste, the stronger and more acid-resistant fluorapatite crystals are formed instead of the hydroxyapatite crystals. (wikipedia.org)
  • Taking the inspiration from the biomineral, the wool keratin was selected to modulate the assembly of nanosized hydroxyapatite (HA) crystals via a coprecipitation method. (manchester.ac.uk)
  • The area around Cerro Huanaquino is best known for its excellent Magnetite specimens, but a close second behind these pieces are the attractive and very well crystallized Carbonate-rich Hydroxylapatite crystals. (minclassics.com)
  • Carbonate-rich Hydroxylapatite is actually a variety of Hydroxylapatite, and is well known from a fair number of world localities, but not often are the crystals as large, attractive and well-formed as the Bolivian specimens. (minclassics.com)
  • and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX. (bvsalud.org)
  • Clinical studies have shown that the composition based on calcium hydroxyapatite , having osteoconductive, antioxidant and anti-inflammatory properties, activates the synthesis of organic and mineral components, that promotes the bioreparation and regeneration processes of periapical tissues in chronic granulomatous periodontitis , which occurred most intensively during the first 6 months after treatment . (bvsalud.org)
  • Composition based on calcium hydroxyapatite , having osteoconductive, antioxidant and anti-inflammatory properties, activates the synthesis of organic and mineral components, which promotes the processes of bioreparation and regeneration of periapical tissues , especially in the early stages. (bvsalud.org)
  • In fact, it was shown that the incorporation of hydroxyapatite with whiskers morphology can provide larger load transfer and favor toughening mechanisms, thus, increasing flexural modulus and fracture toughness of resins in comparison with conventional silica based fillers [ 6 - 11 ]. (hindawi.com)
  • Hydroxyapatite ( HA ) bone scaffolds characterized by highly organized hierarchical structures have been obtained by chemically transforming native woods through a sequence of thermal and hydrothermal processes . (rsc.org)
  • For this purpose, alginate/hydroxyapatite (Alg/HAp) composite scaffolds using a novel production design were successfully developed and tested for their biocompatibility and osteoconductive properties in vitro. (uni-regensburg.de)
  • A systematic evaluation of mechanical and biocompatibility properties of different volume fractions of hydroxyapatite whiskers in comparison with three commercial dental composites filled with micro- and nanosilica particles was carried out. (hindawi.com)
  • Six groups with different hydroxyapatite whiskers mass fractions were taken into account in order to be compared with the performances of silica particles based composites group. (hindawi.com)
  • Data obtained show better interfacial interaction with filler/matrix until 20 wt% of hydroxyapatite whiskers partially replaced silica particles filler. (hindawi.com)
  • For this reason, in the recent five years hydroxyapatite particles and whiskers have been added as novel bioactive and biocompatible reinforcing filler in dental restorations. (hindawi.com)
  • This information is of primary interest in order to achieve a final consistency and specific formulation of hydroxyapatite whiskers mixed with silica particles filler in resin composite. (hindawi.com)
  • In particular, six different ratios of hydroxyapatite/silica particles were investigated. (hindawi.com)
  • With this aim, different mass fraction of hydroxyapatite based composites and three commercial composites loaded with silica particles were tested and compared in order to verify the effective enhancement in both biocompatibility and mechanical properties. (hindawi.com)
  • Morphology studies showed that hydroxyapatite particles with the average size of 50 nm were distributed homogeneously in the polymer matrix. (yildiz.edu.tr)
  • M. Mittal, S. Nath and S. Prakash, "Characterization of Plasma Sprayed Hydroxyapatite Coatings on AISI 316L SS and Titanium Substrate and their Corrosion Behavior in Simulated Body Fluid," Journal of Minerals and Materials Characterization and Engineering , Vol. 10 No. 11, 2011, pp. 1041-1049. (scirp.org)
  • During demineralisation, calcium and phosphorus ions are drawn out from the hydroxyapatite. (wikipedia.org)
  • In this study, a strontium-doped hydroxyapatite (Sr-HAP) was synthesized by the sol-gel method, which used as adsorbent to remove lead ions (Pb 2+ ) from water. (researchsquare.com)
  • Their dactyl appendages have excellent impact resistance due to the impact region being composed of mainly crystalline hydroxyapatite, which offers significant hardness. (wikipedia.org)
  • Hydroxyapatite (HAP, Ca 10 (PO 4 ) 6 (OH) 2 ) has a hexagonal prismatic structure that exposes two crystalline surfaces: prism-faceted a- and basal-faceted c-surfaces. (osti.gov)
  • article{osti_1543698, title = {Effects of Controlled Crystalline Surface of Hydroxyapatite on Methane Oxidation Reactions}, author = {Oh, Su Cheun and Xu, Jiayi and Tran, Dat T. and Liu, Bin and Liu, Dongxia}, abstractNote = {Hydroxyapatite (HAP, Ca10(PO4)6(OH)2) has a hexagonal prismatic structure that exposes two crystalline surfaces: prism-faceted a- and basal-faceted c-surfaces. (osti.gov)
  • About 85% of the about 500 to 700 g of phosphate in the body is contained in bone, where it is an important constituent of crystalline hydroxyapatite. (msdmanuals.com)
  • abstract = "Objectives: We determined the effectiveness of calcium hydroxylapatite (CaHA) paste in vocal rehabilitation. (northwestern.edu)
  • Multifunctional corrosion resistant and bioactive coatings containing hydroxyapatite Ca 10 (PO 4 ) 6 (OH) 2 and magnesium oxide MgO were obtained on Mg-Mn-Ce alloy by plasma electrolytic oxidation. (manchester.ac.uk)
  • Hydroxyapatite can be synthesized via several methods, such as wet chemical deposition, biomimetic deposition, sol-gel route (wet-chemical precipitation) or electrodeposition. (wikipedia.org)
  • The non-stoichiometric phases have the hydroxyapatite structure with cation vacancies (Ca2+) and anion (OH−) vacancies. (wikipedia.org)
  • The sites occupied solely by phosphate anions in stoichiometric hydroxyapatite, are occupied by phosphate or hydrogen phosphate, HPO2−4, anions. (wikipedia.org)
  • Of all the calcium phosphates in dental care products, hydroxyapatite (HAP, Ca 5 (PO 4 ) 3 OH) shows the closest chemical match to human tooth enamel crystallites and is, therefore, biocompatible. (chemistryviews.org)
  • Hydroxylapatite deposits in tendons around joints results in the medical condition calcific tendinitis. (wikipedia.org)
  • However, hydroxyapatite (HA) ( calcific tendonitis ) or calcium pyrophosphate (CPPD) ( pseudogout ), though rare in this location, were also possibilities. (medscape.com)
  • A potential explanation of the association between elevated serum phosphate levels and calcified AS may be hydroxyapatite deposition, which can induce the formation of osteoblast-like interstitial stromal cells and smooth muscle cells. (medscape.com)
  • In order to increase the bone bioactivity of metallic implants, hydroxyapatite (HA: Ca 10 (PO 4 ) 2 (OH) 6 ) is often coated on their surface so that real bond with surrounding bone tissue can be formed. (scirp.org)
  • A periodic layer underneath the impact layer composed of hydroxyapatite with lower calcium and phosphorus content (thus resulting in a much lower modulus) inhibits crack growth by forcing new cracks to change directions. (wikipedia.org)
  • In an article recently published in the journal Science and Technology of Advanced Materials, iBB researchers Frederico Barbosa, João Silva, Fábio Garrudo, Marta Carvalho, Paola Alberte, Leonor Resina and Frederico Ferreira, in collaboration with colleagues from the University of Nottingham and the Universitat Politècnica de Catalunya, developed novel hydroxyapatite-filled PVDF-TrFE nanofibers with enhanced piezoelectrical properties and osteogenic potential. (scoop.it)
  • To overcome the present lack in the literature about hydroxyapatite based composite, we proposed a systematic analysis of the mechanical and biocompatibility performances of them in comparison with commercial dental composite. (hindawi.com)
  • It was revealed that the inorganic phase in the nano-composite was carbonate-substituted hydroxyapatite with low crystallinity. (yildiz.edu.tr)
  • This study proposed a layer-by-layer technique on the hard CNCs/hydroxyapatite (HAP) matrix using biodegradable and biocompatible chitosan and hyaluronic acid (HA). (eurekamag.com)
  • 2015 ) prepared a hydroxyapatite/chitosan (HAP/CS) porous material with a pore size of 100 ~ 300mm to adsorb Pb 2+ , and its maximum adsorption capacity was 264.42 mg/g. (researchsquare.com)
  • Hydroxyapatite Piezoelectric Ceramic Materials Report by Material, Application, and Geography - Global Forecast to 2021 is a professional and in-depth research report on the world's major regional market conditions, focusing on the main regions (North America, Europe and Asia-Pacific) and the main countries (United States, Germany, united Kingdom, Japan, South Korea and China). (researchbeam.com)
  • Reconstruction of Mastoid Cortex Defects with Hydroxyapatite Cement for Negative Sequelae of Mastoidectomy. (uchicago.edu)
  • Hemostasis and obliteration of mandibular arteriovenous malformation through direct hydroxyapatite cement injection into the molar cavity. (uchicago.edu)
  • Carbonated calcium-deficient hydroxyapatite is the main mineral of which dental enamel and dentin are composed. (wikipedia.org)
  • Hydroxyapatite is the main mineral component of enamel in teeth. (wikipedia.org)
  • As the main biomineral component in enamel and dentine, hydroxyapatite is responsible for their higher mechanical performances. (hindawi.com)
  • The hydroxyapatite nanocrystal suspension can be prepared by a wet chemical precipitation reaction following the reaction equation below: 10 Ca(OH)2 + 6 H3PO4 → Ca10(PO4)6(OH)2 + 18 H2O The ability to synthetically replicate hydroxyapatite has invaluable clinical implications, especially in dentistry. (wikipedia.org)
  • It was found that the hydroxyapatite coating provided excellent corrosion resistance. (scirp.org)
  • This piece is a great thumbnail sized specimen of Carbonate-rich Hydroxylapatite with well-defined hexagonal form, a soft peach-tan color, medium luster, and is somewhat translucent. (minclassics.com)
  • 2017 ) studied the magnetic hydroxyapatite-mixed oxidation of multi-walled carbon nanotubes (mHAP-oMWCNTs) to remove Pb 2+ in water, and the results showed that mHAP-oMWCNTs showed better performance than mHAP, mMWCNT and HAP-oMWCNTs. (researchsquare.com)
  • When Calcium Microcrystalline Hydroxyapatite (MCHA) is applied topically to teeth, it can provide a number of benefits that promote oral health. (toothsoap.com)
  • In summary, the topical application of Calcium Microcrystalline Hydroxyapatite on teeth can provide a range of benefits that promote oral health and improve the appearance of teeth. (toothsoap.com)
  • Tooth Soap® has always been a vital part of the miracle formula for fantastic teeth and gums and now with the addition of calcium hydroxyapatite in its microcrystalline form brings Tooth Soap® into a new era. (toothsoap.com)
  • Hydroxyapatite toothpaste can create a barrier from dental caries forming on the surfaces of your teeth. (trysnow.com)
  • 5] A. Elkayar, Y. Elshazly & M. Assaad, Properties Of Hydroxyapatite from Bovine Teeth . (uns.ac.id)
  • These variations have a marked effect on the biological and mechanical properties of the compound, and therefore these hydroxyapatite products have different clinical uses. (wikipedia.org)
  • These properties attract the attention of many companies, that develop hydroxyapatite-based solutions for the orthopedic and plastic surgery markets. (lamberti.com)
  • By playing with composition, size and shape, surface and multi-functionality modification, a wide range of hydroxyapatite-based application properties can be achieved. (lamberti.com)
  • Objectives: To mark the milestone of 10 years of use in the aesthetic field, this review will consider the evolution of calcium hydroxylapatite in aesthetic medicine, provide a detailed injection protocol for a global facial approach, and examine how the unique properties of calcium hydroxylapatite provide it with an important place in today's market. (jcadonline.com)
  • Background: Calcium hydroxylapatite is one of the most well-studied dermal fillers worldwide and has been extensively used for the correction of moderate-to-severe facial lines and folds and to replenish lost volume. (jcadonline.com)
  • The Guerbet reaction of ethanol to produce heavier products was performed over a series of extensively characterized carbonate-containing hydroxyapatites (HAPs) with different Ca/P ratios and thus different densities, strengths and natures of acid and basic sites. (rsc.org)
  • Hydroxyapatite (HA), Ca 10 (PO 4 ) 6 (OH) 2 , was introduced since 1975 as filling material for intrabony defects [ 1 - 4 ]. (hindawi.com)
  • Recipient(s) will receive an email with a link to 'Immediate Loading of a Single Hydroxyapatite-Coated Threaded Root Form Implant: A Clinical Report' and will not need an account to access the content. (allenpress.com)
  • Influence of coralline hydroxyapatite used as an ocular implant on the dose distribution of external beam photon radiation therapy. (uchicago.edu)
  • Calcium microcrystalline hydroxyapatite may help mend those surface cavities around the gum line and cavities in fissures, the most common place for tooth decay to show up. (toothsoap.com)
  • Hydroxyapatite (IMA name: hydroxylapatite) (Hap, HAp, or HA) is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), often written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. (wikipedia.org)
  • Conclusion: Calcium hydroxylapatite is a very effective agent for many areas of facial soft tissue augmentation and is associated with a high and well-established safety profile. (jcadonline.com)
  • In addition, hydroxyapatite whiskers (wHA) have been considered the best option as reinforcing filler in comparison with other whiskers based on carbon, ceramic, glass, metal, and polymer due to the absence of cytotoxicity effects [ 12 , 13 ]. (hindawi.com)
  • 2013 ) prepared Si-CHAP by hydrothermally doping silicon carbon into hydroxyapatite. (researchsquare.com)
  • Methods: This article is an up-to-date review of calcium hydroxylapatite in aesthetic medicine along with procedures for its use, including a detailed injection protocol for a global facial approach by three expert injectors. (jcadonline.com)
  • After this threshold, the mechanical performances decrease dramatically due to both the hydroxyapatite agglomerates formation and the low degree of resin conversion. (hindawi.com)
  • CHT Ceramic Hydroxyapatite XT Media and Nuvia HP-Q Resin. (bio-rad.com)
  • CHT Ceramic Hydroxyapatite XT (CHT XT) Mixed-Mode Media was formulated in response to customers' need for a more robust and stable resin that can maintain the superior performance of CHT resins. (bio-rad.com)