نتایج جستجو برای: ions of saliva
تعداد نتایج: 21170614 فیلتر نتایج به سال:
some new water-soluble schiff base complexes of na2[m(5-so3-1,2-salophen)].nh2o; (5-so3-1,2-salophen = n,n’-bis(5-sulphosalicyliden)-1,2-phenylendiamine); na2[m(5-so3-2,3-salpyr)(h2o)n].2h2o; (5-so3-2,3-salpyr = n,n’-bis(5-sulphosalicyliden)-2,3-diaminopyridine); and na2[m(5-so3-3,4-salbenz)(h2o)n].nh2o; (5-so3-3,4-salbenz = n,n’-bis(5-sulphosalicyliden)-3,4-diaminobenzophenon); where m = cu, n...
High entropy alloys are a new type of multi-component material with improved mechanical properties that could be useful in medical implants. The corrosion behavior biomedical Ti70Zr20Nb7.5Ta2.5 alloy was examined and matched commercial Ti the traditional biomaterial Ti6Al4V artificial saliva. Moreover, impact different pH concentrations fluoride ions on also investigated. Ecorr decreases follow...
STATEMENT OF PROBLEM The casein phospho peptide-amorphous calcium phosphate with or without fluoride (CPP-ACPF and CPP-ACP respectively) are of considerably new materials which are highly recommended for prevention of dental caries. However, there is a shortage in literature on how they affect the ion concentration of saliva or dental plaque. OBJECTIVES The aim of this study was to evaluate t...
AIM To assess the influence of low frequency magnetic fields on the contents of calcium, magnesium and fluoride in saliva. SUBJECTS AND METHODS Sixty two patients were subjected to magnetic stimulation with low frequency magnetic fields of mean induction 3 microT at the first intervention and 4 microT at the following fourteen ones. Saliva was sampled before magnetic stimulation and after the...
H(2)O(2) formation by Streptococcus mitis was measured by the catalase-dependent conversion of [(14)C]formate to (14)CO(2) ; it was optimal at pH 6.0-6.5 and required glucose. The H(2)O(2) formed by S. mitis could be employed as a component of an antimicrobial system that also included lactoperoxidase (LPO) and either iodide or thiocyanate ions in the concentrations present in saliva. The antim...
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
this study investigated the feasibility of using different extracting solutions at various concentrations to remove copper from low permeability silty loam soils, which have a high buffering soil, ph of 7.6, where it spiked with copper at concentration of about 1500 mg/kg to represent soil conditions. the most efficient extracting solutions could be used as purging/extracting solutions in other...
Background: Surveys in Tanzania show that pregnant women have a significant burden of oral disease, although there is still little literature on the variation their intraoral electrolytes. The present study investigated changes salivary calcium (Ca2+), phosphate (PO43−), and hydrogen (H) ions during pregnancy correlation between pH hemoglobin levels. Methodology: A cross-sectional involved sixt...
STATEMENT OF PROBLEM Dental caries is one of the most common chronic diseases in children. The balance between demineralization and remineralization of the decayed teeth depends on the calcium and phosphate content of the tooth surface. Therefore, if a product such as casein phospho peptides - amorphous calcium phosphate (CPP- ACP) which can significantly increase the availability of calcium an...
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