microhardness and chemical composition of human
The microhardness of dry stones was found to vary with the calculi chemical composition, yet remained consistent within composition groups. The hardest Chemical Composition and Microhardness of Human Enamel Chemical Composition and Microhardness of Human Enamel Treated with Fluoridated Whintening Agents. A Study in Situ Thais de Mendonça Petta 1, Yasmin do Socorro Batista de Lima Gomes 1, Renata Antunes Esteves 1, Kelson do Carmo Freitas Faial 2, Roberta Souza D`Almeida Couto 1, Cecy Martins Silva 1, *
Jun 12, 2017 · More information:Thais de Mendon?a Petta et al. Chemical Composition and Microhardness of Human Enamel Treated with Fluoridated Whintening Agents. A Study, The Open Dentistry Journal (2017). DOI Comparison of chemical composition of enamel and dentine May 01, 2015 · The results obtained by the three techniques correlated and detailed information on the chemical composition of these calcified tissues is compiled in Table 3. The inorganic fraction ranges from 81 to 92% for enamels, 6974% for dentins, and 96% for the hydroxyapatite standard, human teeth being the most mineralised tooth and bovine the closest to the human, in both enamel and dentine. Dental enamel bleached for a prolonged and excessive time Apr 05, 2019 · This work aimed to evaluate the roughness, microhardness, ultrastructure, chemical composition and crystalline structure in submitted teeth to a prolonged home bleaching regimen with 10% carbamide peroxide (10% PC) for different periods. The specimens were divided into the following groups:G1:negative control (application of water-soluble gel); G2:tooth whitening group (positive
Jan 01, 2021 · Therefore, the aim of this study was to evaluate the chemical and mechanical changes in human enamel submitted to different radiation doses, applied in single or fractionated doses. The null hypothesis tested was that different protocols and radiation doses do not alter the chemical composition and microhardness of enamel. 2. Materials and Methods Effects of nickel content on the microstructure Dec 03, 2020 · To avoid this deleterious effect, the chemical composition of the new alloys must be carefully designed 22. The material needs to be inert in contact with the human body, so it Effects of recasting on the chemical composition Chemical composition, microstructure, microhardness, and ion release were determined before and after the first cast and following each recast. Zinc and tin concentrations in the high noble alloy decreased significantly with recasting; consequently, the release of these ions decreased as well.
Apr 08, 2021 · Due to an increase in life expectancy and consequently the increase in the interaction time of the implant with the human organism, the search for new metallic biomaterials for application as implant has been increasing in the last decades (Ref 1,2,3).In this context, -Ti alloys, which are free of toxic elements in their chemical composition attracts more and more attention due to their Microhardness and Chemical Composition of Human ToothKeywords:microhardness, chemical composition, human tooth, enamel, dentin 1. Introduction Tooth enamel is the most mineralized tissue of human body. Its composition is 96 wt.% inorganic material and 4 wt.% organic material and water. In dentin, the inorganic material