Results 11 to 20 of about 1,787 (235)

Hydroxyapatite granules used in the obliteration of mastoid cavities in rats Utilização de hidroxiapatita de cálcio no preenchimento de defeitos ósseos criados em mastoides de ratos

Brazilian Journal of Otorhinolaryngology, 2011
Prospective Experimental study in which we created a bony defect in the mastoids of rats and filled it up with hydroxyapatite to evaluate bone regeneration, to solve the problems of open cavities after mastoidectomies that frequently present with ...
Rogério Hamerschmidt, Rafael Francisco dos Santos, João Cândido Araújo, Henrique Jorge Stahlke Jr, Miguel Angelo Agulham, Ana Tereza Ramos Moreira, Marcos Mocellin   +6 more
doaj   +1 more source

Clinical Applications of Nano-Hydroxyapatite in Dentistry

Applied Sciences, 2022
Nano-hydroxyapatite (nano-HAp) is a biomaterial which is finding increasing application in dentistry due to its osteogenic properties and biocompatibility. The aim of the present study is to review the clinical applications of nano-HAp in dentistry.
Rossana Izzetti, Stefano Gennai, Marco Nisi, Francesco Gulia, Marco Miceli, Maria Rita Giuca   +5 more
doaj   +1 more source

The Effect of Scaffold Hydroxyapatite derived from Portunus pelagicus Shell on the Expression of Fibroblast Growth Factor-2 (FGF-2) and Bone Morphogenetic Proteins-2 (BMP -2) in the Extraction Sockets of Cavia cobaya.

Journal of Oral Research, 2022
Objetive: To determine the expression of Fibroblast Growth Factor (FGF)-2 and Bone Morphogenetic Protein (BMP)-2 after application of scaffold hydroxyapatite from Rajungan crab shell (Portunus pelagicus) in the tooth extraction socket of Cavia cobaya ...
Michael J. Kridanto Kamadjaja, Sherman Salim, Gigih Gemiudeas   +2 more
doaj   +1 more source

Soft mechanochemical synthesis and thermal stability of hydroxyapatites with different types of substitution

Chimica Techno Acta, 2022
The feasibility of soft mechanochemical synthesis was studied here for hydroxyapatite with various types of substitution. It was shown that this method allows obtaining hydroxyapatites substituted with copper or iron cations and hydroxyapatites ...
Natalya V. Eremina, Svetlana V. Makarova, Denis D. Isaev, Natalya V. Bulina   +3 more
doaj   +1 more source

Antibacterial and biocompatible Zn and Cu containing CaP magnetron coatings for MgCa alloy functionalization

Journal of Materials Research and Technology, 2023
The application of bioresorbable magnesium-based alloys in medical implants has been limited by their rapid dissolution rate. In order to enhance their suitability for medical use, this study proposes the deposition of calcium phosphate (CaP) onto Mg (0 ...
Konstantin A. Prosolov, Nikita A. Luginin, Larisa S. Litvinova, Maxim A. Fedorov, Ilya I. Anisenya, Lyudmila S. Mushtovatova, Aleksandr A. Snetkov, Artem V. Bukharov, Igor A. Khlusov, Yurii P. Sharkeev   +9 more
doaj   +1 more source

Lactic Acid Conversion to Acrylic Acid Over Fluoride-Substituted Hydroxyapatites

Frontiers in Chemistry, 2020
One of the most interesting intermediates for the chemical industry is acrylic acid, which can be derived from lactic acid by catalytic dehydration in the gas phase.
Robert Wojcieszak, Thomas Bonnotte, Sébastien Paul, Benjamin Katryniok, Franck Dumeignil   +4 more
doaj   +1 more source

Biocompatibility of a novel hydroxyapatite-based endodontic sealer enriched with silicon and strontium ions in rats [PDF]

Journal of Dental Materials and Techniques
Objective: This study aimed to evaluate the biocompatibility of a novel bioceramic endodontic sealer formulation, combining tricalcium silicate/dicalcium silicate, silicon hydroxyapatite, and strontium hydroxyapatite.Methods: Sixty polyethylene tubes ...
Mina Zarei, Maryam Javidi, Negar Bahrami-Taghanaki, Mina Bagheri, Maryam Peighoun   +4 more
doaj   +1 more source

Multifunctional Composite Materials (with Consolidation, Self-Cleaning and Antimicrobial Properties) Applicable for the Preservation of Inorganic Substrates

Proceedings, 2023
The aim of this study is to synthesize different polymeric solutions by mixing different types of polymers, metallic oxides and hydroxyapatites in different ratios suspended in alcoholic solutions and to evaluate the effectiveness of the obtained ...
Toma Fistos, Alina Melinescu, Lia Mara Ditu, Anton Ficai, Denisa Ficai, Florica Marinescu, Roxana Ioana Matei (Brazdis), Irina Fierascu, Anda Maria Baroi, Cristian-Andi Nicolae, Radu Claudiu Fierascu   +10 more
doaj   +1 more source

Potencial of different hydroxyapatites as biomaterials in the bone remodeling [PDF]

Acta Cirúrgica Brasileira, 2018
Purpose: To analyze the therapeutic potentials of different hydroxyapatites used for the correction of bone defects in rats. Methods: Forty rats, male, albino wistar, were distributed in 4 groups. They were submitted to a 3.5 mm defect in tibia.
Pedro Carvalho Cassino, Larissa Schimidt Rosseti, Osmar Ignácio Ayala, Marco Antônio Utrera Martines, Luciane Candeloro Portugual, Claudio Goncalves de Oliveira, Iandara Schettert Silva, Ruy de Araujo Caldas   +7 more
doaj   +1 more source

Effect of a nano-hydroxyapatite toothpaste on enamel erosive lesions of third molars induced by exposure to orange juice

Contemporary Clinical Dentistry
Objectives: This study aimed to assess the effect of a nano-hydroxyapatite (nano-HA) toothpaste on erosive enamel lesions of third molars induced by exposure to orange juice.
Marzieh Mehrjoo, Roza Haghgoo, Motahare Ahmadvand   +2 more
doaj   +1 more source