نتایج جستجو برای: calcium fluoride

تعداد نتایج: 186116  

Journal: :Journal of environmental biology 2011
Radha Gautam Nagendra Bhardwaj Yashoda Saini

There is a severe fluoride problem in Nawa tehsil of Nagaur district. Villagers are suffering from dental fluorosis and skeletal fluorosis. So an extensive geochemical study of 27 villages of eastern, south-eastern and southern zone of Nawa tehsil was done. Total 46 ground water samples were collected and analyzed for various physicochemical parameters as well as fluoride content. The ground wa...

A. Behnamghader M. Rangie M. Shahmohammadi R . Jahandideh,

The aim of this study was to investigate the sol gel synthesis of HA/FA nanoparticles and the possible formation of TCP phase or unstoichiometric calcium deficient hydroxyapatite (CDHA) from the precursors with a Ca/P ratio of 1.62. In order to prepare the sol, the solutions of Triethyl phosphite, ammonium fluoride and calcium nitrate in ethanol were used respectively as P, F and Ca precursors....

2018
G. H. Nancollas

A new method is described for studying reproducibly, the kinetics of crystallization of calcium fluoride under conditions of constant solution composition. The method can be used even at very low supersaturation. The rate is proportional to the square of the supersaturation, over the range of relative supersaturation, S = 0.20 1.66. The results point to a surface controlled crystallization. The...

Journal: :international journal of nano dimension 0
m. shahmohammadi department of chemistry, umea university ,umea , sweden. r . jahandideh biomedical engineering faculty, islamic azad university, science and research branch, tehran, iran. a. behnamghader materials and energy research center, tehran, iran. m. rangie department of mechanical engineering, imam hussein university, tehran, iran.

the aim of this study was to investigate the sol gel synthesis of ha/fa nanoparticles and the possible formation of tcp phase or unstoichiometric calcium deficient hydroxyapatite (cdha) from the precursors with a ca/p ratio of 1.62. in order to prepare the sol, the solutions of triethyl phosphite, ammonium fluoride and calcium nitrate in ethanol were used respectively as p, f and ca precursors....

Journal: :International journal of oral health dentistry 2023

Regardless of barriers linked to the patient’s age and behaviour, restoring primary teeth can be technically challenging, researchers have long searched for an appropriate replacement glass ionomer cement, composites, silver amalgam that is cost-effective, fluoride-releasing, convenient use, fulfils both strength acceptable aesthetics. An Alkasite a resin -based modified composite restorative m...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
m biria dept. of pediatric dentistry, dental school, shahid beheshti university of medical sciences, tehran, iran. m jafary dept. of pediatric dentistry, dental school, kashan university of medical sciences, kashan, iran.

objective: one complication of fixed orthodontic treatment in patients with poor oral hygiene is development of demineralized enamel lesions compromising esthetics. this study aimed to review preventive measures and treatment of white spot lesions (wsls) in patients with fixed orthodontic appliances. review of literature: in this review study, pubmed and google scholar databases were searched f...

Karim Jafari Saleh Hoseini Somayeh Hekmatfar

Introduction: Glass ionomer cement (GIC) is a restorative material used in pediatric dentistry, which attaches to dental hard tissues and has cariostatic properties due to the ability for fluoride release. The present study aimed to assess the fluoride release and uptake capacity of two GICs in the presence of various fluoride sources. Methods: This in-vitro study was conducted on 120 disks com...

M Biria, M Jafary,

Objective: One complication of fixed orthodontic treatment in patients with poor oral hygiene is development of demineralized enamel lesions compromising esthetics. This study aimed to review preventive measures and treatment of white spot lesions (WSLs) in patients with fixed orthodontic appliances. Review of Literature: In this review study, PubMed and Google Scholar databases were searched ...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
l. pishevar dept. of operative dentistry, school of dentistry, isfahan islamic azad university, khorasgan branch, isfahan, iran r. mazaheri dept. of pediatric dentistry, school of dentistry, school of dentistry, isfahan islamic azad university, khorasgan branch, isfahan, iran. fs. ranjbaran dept. of operative dentistry, school of dentistry, isfahan islamic azad university, khorasgan branch, isfahan, iran m. mirzakhani dept. of operative dentistry, school of dentistry, isfahan islamic azad university, khorasgan branch, isfahan, iran. m. khodam

objective: this study aimed to compare the effect of using casein phosphopeptide – amorphous calcium phosphate (cpp-acp) paste, remin-pro and fluoride varnish on remineralization of enamel lesions. methods: in this experimental-in vitro study, 60 intact premolars and molars were used and flat enamel surfaces were prepared. the specimens were divided into 6 groups (n=10). after primary diagnoden...

Journal: :European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry 2015
C Llena A M Leyda L Forner

AIM To evaluate the effects of novel casein phosphopeptide (CPP) formulations CPP-amorphous calcium phosphate (CCP- ACP) and CPP-amorphous calcium fluoride phosphate (CPP-ACFP) versus fluoride varnish on the remineralisation of enamel white spot lesions (WSLs) over a 12-week follow-up period. MATERIALS AND METHODS STUDY DESIGN Double-blind prospective study. Eligibility criteria were patie...

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