65,525 results match your criteria fluoride


Comparative plaque removal efficacy of a new children's powered toothbrush and a manual toothbrush: Randomized, single use clinical study.

Am J Dent 2021 Dec;34(6):338-344

Church and Dwight Co. Inc., Princeton, New Jersey, USA,

Purpose: To compare the plaque removal efficacy of a new children's powered toothbrush to a children's manual toothbrush.

Methods: 55 subjects aged 5-8 years old, who met entry criteria, participated in this single-center, two-cell, examiner-blind, randomized, crossover, single use clinical study. Subjects brushed at home with their first assigned toothbrush and fluoride toothpaste, under supervision of a parent or legal guardian, at least once daily for 2 minutes during a 1-week acclimation period. Read More

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December 2021

Mineral Nanomedicine to Enhance the Efficacy of Adjuvant Radiotherapy for Treating Osteosarcoma.

ACS Appl Mater Interfaces 2022 Jan 20. Epub 2022 Jan 20.

Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan.

It is vital to remove residual tumor cells after resection to avoid the recurrence and metastasis of osteosarcoma. In this study, a mineral nanomedicine, europium-doped calcium fluoride (CaF:Eu) nanoparticles (NPs), is developed to enhance the efficacy of adjuvant radiotherapy (i.e. Read More

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January 2022

Mn non-equivalent doped fluoride phosphors with a short fluorescence decay time for backlighting.

Dalton Trans 2022 Jan 20. Epub 2022 Jan 20.

Key Laboratory of Green-chemistry Materials in University of Yunnan Province, Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University) of State Ethnic Affairs Commission, School of Chemistry & Environment, Yunnan Minzu University, Kunming, 650500, P. R. China.

The non-equivalent doping of Mn in red-emitting fluoride phosphors effectively shortens the fluorescence lifetime. Herein, we successfully synthesized RbNaInF:Mn phosphors by an ion-exchange method. The compensation mechanism of Mn local symmetry and charge balance in the phosphor were studied in detail by theoretical calculations based on density functional theory. Read More

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January 2022

Impact of Electrospun Piezoelectric Core-Shell PVDFhfp/PDMS Mesh on Tenogenic and Inflammatory Gene Expression in Human Adipose-Derived Stem Cells: Comparison of Static Cultivation with Uniaxial Cyclic Tensile Stretching.

Bioengineering (Basel) 2022 Jan 8;9(1). Epub 2022 Jan 8.

Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091 Zurich, Switzerland.

Specific microenvironments can trigger stem cell tenogenic differentiation, such as specific substrates or dynamic cell cultivation. Electrospun meshes composed by core-shell fibers (random or aligned; PDMS core; piezoelectric PVDFhfp shell) were fabricated by coaxial electrospinning. Elastic modulus and residual strain were assessed. Read More

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January 2022

Prevention of Caries and Dental Erosion by Fluorides-A Critical Discussion Based on Physico-Chemical Data and Principles.

Dent J (Basel) 2022 Jan 5;10(1). Epub 2022 Jan 5.

Dr. Kurt Wolff GmbH & Co. KG, Research Department, Johanneswerkstr. 34-36, 33611 Bielefeld, Germany.

Dental erosion is a common problem in dentistry. It is defined as the loss of tooth mineral by the attack of acids that do not result from caries. From a physico-chemical point of view, the nature of the corroding acids only plays a minor role. Read More

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January 2022

The Impact of Water Fluoridation on Medicaid-Eligible Children and Adolescents in Alaska.

J Prim Prev 2022 Jan 20. Epub 2022 Jan 20.

Jacob Strategies LLC, 2311 Connecticut Avenue NW #205, Washington, DC, 20008, USA.

Juneau, Alaska, ceased community water fluoridation (CWF) in 2007, and previous research found a substantial increase in dental caries-related procedures and treatment costs for children from low-income families in Juneau between 2003 and 2012. We collected comparable dental caries-related procedures and treatment cost data for the same years for children in Anchorage, Alaska, where CWF has been continuously maintained. This retrospective study analyzed all Medicaid dental claims records in two separate years for caries-related procedures and associated costs among children (aged 0 to 18 years) residing in Anchorage's 99502 zip code and compared these records to data from Juneau. Read More

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January 2022

Predicting Treatment Nonresponse in Hispanic/Latino Children Receiving Silver Diamine Fluoride for Caries Arrest: A Pilot Study Using Machine Learning.

Front Oral Health 2021 26;2:695759. Epub 2021 Jul 26.

Department of Molecular Pathobiology, New York, NY, United States.

Silver diamine fluoride (SDF) is a nonsurgical therapy for the arrest and prevention of dental caries with demonstrated clinical efficacy. Approximately 20% of children receiving SDF fail to respond to treatment. The objective of this study was to develop a predictive model of treatment non-response using machine learning. Read More

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Global Oral Health Policies and Guidelines: Using Silver Diamine Fluoride for Caries Control.

Front Oral Health 2021 30;2:685557. Epub 2021 Jul 30.

Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.

Silver diamine fluoride (SDF) was developed in Japan in the 1960s. It is a clear solution containing silver and fluoride ions. Because of its anti-bacterial and remineralizing effect, silver diamine fluoride has been used in managing dental caries for decades worldwide. Read More

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Efficacy of Experimental Mouth Rinses on Caries-Related Biofilms .

Front Oral Health 2021 14;2:676028. Epub 2021 Jul 14.

Department Research, University Center for Dental Medicine Basel UZB University of Basel, Basel, Switzerland.

This study assessed the efficacy of tin and Polyethylenglycol (PEG-3) tallow aminopropylamine in different concentrations on biofilms to establish a new screening process for different antimicrobial agents and to gain more information on the antibacterial effects of these agents on cariogenic biofilms. Isothermal microcalorimetry (IMC) was used to determine differences in two growth parameters: lag time and growth rate; additionally, reduction in active biofilms was calculated. Experimental mouth rinses with 400 and 800 ppm tin derived from stannous fluoride (SnF) revealed results (43. Read More

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Oral Health Policies to Tackle the Burden of Early Childhood Caries: A Review of 14 Countries/Regions.

Front Oral Health 2021 9;2:670154. Epub 2021 Jun 9.

Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.

Early childhood caries (ECC) has significant public health implications but has received inadequate global attention. There is limited information regarding the success of oral health policies implemented to address the challenges of ECC. This review aimed to summarize such policies to tackle ECC from different countries/regions. Read More

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School Based Tooth Brushing and Annual Silver Diammine Fluoride Application as a Highest Priority Package for Achieving Universal Oral Health Care for Cambodian Children.

Front Oral Health 2021 7;2:667867. Epub 2021 May 7.

Faculty of Dentistry, University of Puthisastra, Phnom Penh, Cambodia.

Achieving Universal Oral Health Care among Low-to Middle-Income settings is challenging and little literature exists around exploring what a "Highest Priority Package" of care might look like in the context of oral health. The Healthy Kids Cambodia (HKC) program differs from most conventional school dental services in that the initial package of care that is offered is daily toothbrushing with 1,500 ppm fluoride toothpaste (DTB) together with the topical application of Silver Diamine fluoride (SDF) for management of lesions in primary teeth. To examine tooth level outcomes for 8- to 10-year old children from two schools that performed DTB with application of SDF at differing time-points. Read More

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Evidence-Based Caries Management for All Ages-Practical Guidelines.

Front Oral Health 2021 27;2:657518. Epub 2021 Apr 27.

Section of Pediatric Dentistry, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States.

The purpose of the present paper is to provide step-by-step guidelines for dental healthcare providers to manage dental caries based upon caries risk assessment (CRA) for ages 0-6 years and 6 years through adult. The manuscript reviews and updates the CAMBRA (caries management by risk assessment) system which includes CRA and caries management recommendations that are guided by the assessed risk level. CAMBRA CRA tools (CRAs) have been evaluated in several clinical outcomes studies and clinical trials. Read More

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A Comparison of Four Caries Risk Assessment Methods.

Front Oral Health 2021 28;2:656558. Epub 2021 Apr 28.

Section of Pediatric Dentistry, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States.

Caries risk assessment (CRA) is essential as the basis for successful management of dental caries. Of the many published CRA tools, four well-known ones are CAMBRA, Cariogram, American Dental Association (ADA), and American Academy of Pediatric Dentistry (AAPD) CRAs. The predictive accuracy of CAMBRA and Cariogram CRA tools have been examined in clinical outcomes studies in thousands of patients and the tools are widely used all over the world. Read More

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Wear Behavior and Surface Quality of Dental Bioactive Ions-Releasing Resins Under Simulated Chewing Conditions.

Front Oral Health 2021 12;2:628026. Epub 2021 Feb 12.

Ph.D. Program in Dental Biomedical Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States.

Bioactive materials can reduce caries lesions on the marginal sealed teeth by providing the release of ions, such as calcium, phosphate, fluoride, zinc, magnesium, and strontium. The presence of such ions affects the dissolution balance of hydroxyapatite, nucleation, and epitaxial growth of its crystals. Previous studies mostly focused on the ion-releasing behavior of bioactive materials. Read More

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February 2021

Micro-computed tomographic evaluation of the effect of fluoride agents on white spot lesions: An study.

Korean J Orthod 2022 Jan;52(1):75-79

Department of Orthodontics, Korea University Guro Hospital, Seoul, Korea.

Objective: To investigate remineralizing effect of three fluoride regimens on artificially demineralized enamel around orthodontic bracket by analyzing mineral density (MD) acquired from micro-computed tomography (micro-CT).

Methods: Forty-eight bracket bonded bovine incisors were prepared to create demineralized enamel (DE) surface. The samples were divided into four groups according to the fluoride regimen: 1) no fluoridation, 2) 1. Read More

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January 2022

Caries Risk Documentation And Prevention: eMeasures For Dental Electronic Health Records.

Appl Clin Inform 2022 Jan 19;13(1):80-90. Epub 2022 Jan 19.

Department of Preventive and Restorative Dental Sciences, University of California San Francisco School of Dentistry, San Francisco, California, United States.

Background:  Longitudinal patient level data available in the electronic health record (EHR) allows for the development, implementation, and validations of dental quality measures (eMeasures).

Objective:  We report the feasibility and validity of implementing two eMeasures. The eMeasures determined the proportion of patients receiving a caries risk assessment (eCRA) and corresponding appropriate risk-based preventative treatments for patients at elevated risk of caries (appropriateness of care [eAoC]) in two academic institutions and one accountable care organization, in the 2019 reporting year. Read More

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January 2022

Nickel-catalyzed reductive defluorination of iodo allylic -difluorides: allenyl monofluoride synthesis.

Chem Commun (Camb) 2022 Jan 19. Epub 2022 Jan 19.

The College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.

As a potential fluorinated synthon, there have been only limited reports on fluorinated allene synthesis and applications due to concerns about their stability. Here, we developed a nickel-catalyzed reductive defluorination of iodo allyl -difluorides to afford allenyl monofluorides under mild conditions with good functional group tolerance, which were easily converted to other C-F bond compounds, such as alkyl and alkenyl fluorides. Preliminary mechanistic studies suggested that monofluoroallenes were yielded by β-F elimination of the alkenyl C-Ni intermediates from the oxidative addition of C-I bonds to a nickel(0) catalyst, while zinc regenerates the catalyst and closes the catalytic cycle. Read More

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January 2022

A template-free, more environmentally friendly approach for glass micro-texturing.

Sci Rep 2022 Jan 18;12(1):879. Epub 2022 Jan 18.

Corning Research and Development Corporation, Corning, USA.

Micron and nanometer size textured silicate glass surfaces are of interest in consumer electronics, photovoltaics, and biosensing applications. Typically, texturing glass surfaces requires applying a patterned mask or a pre-etching treatment (e.g. Read More

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January 2022

Liquid-Infused Membranes Exhibit Stable Flux and Fouling Resistance.

ACS Appl Mater Interfaces 2022 Jan 19. Epub 2022 Jan 19.

Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303, United States.

Antifouling membranes that offer excellent operational lifetimes are critical technologies needed to meet the growing demand for clean water. In this study, we demonstrate antifouling membranes featuring an ultrathin oil layer that stayed immobilized on the surface and in the pore walls of poly(vinylidene fluoride) membranes for multiple cycles of operation at industrially relevant transmembrane pressures. An optimized quantity of a commercial Krytox oil with either a low (K103) or a high viscosity (K107) was infused onto the active surface and into the pores of membranes with a 0. Read More

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January 2022

Tetrasodium pyrophosphate ameliorates oxidative damage to the TGase-catalyzed gelation of actomyosins.

Food Chem 2022 Jan 12;378:132128. Epub 2022 Jan 12.

College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China. Electronic address:

The present study attempted to investigate the interactive roles of protein oxidation (0-20 mM HO) and tetrasodium pyrophosphate (TSPP) on the crosslinking efficiency of actomyosin mediated by transglutaminase (TGase). Oxidation at 0-20 mM HO was not conducive to TGase-mediated crosslinking as indicated by the relative reduction of free amine consumption from 35.3% to 11. Read More

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January 2022

Steric hindrance effect on the excited-state proton transfer process: TDDFT study on the fluorescent sensing mechanism of a fluoride sensor.

Spectrochim Acta A Mol Biomol Spectrosc 2022 Jan 10;271:120872. Epub 2022 Jan 10.

College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China. Electronic address:

An understanding of the excited-state process and the sensing mechanism for specific anions can be helpful for the design and synthesis of fluorescent sensors in analytical chemistry and biotechnology. Here, we theoretically investigated the fluorescent response mechanism of a reported acylhydrazone-based fluorescent sensor (Soft Matter, 2019, 15, 6690) for fluoride recognition using the time-dependent density functional theory approach. At the M06/TZVP/SCM level, the vertical excitation energies, which were calculated based on the ground state and first singlet-state geometries of the sensor molecule, agreed well with the experimental ultraviolet-visible and fluorescence spectra. Read More

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January 2022

The stabilization of ultrafiltration membrane blended with randomly structured amphiphilic copolymer: Micropollutants adsorption properties in filtration processes.

J Colloid Interface Sci 2022 Jan 10;613:234-243. Epub 2022 Jan 10.

Engineering Research Center of Membrane and Water Treatment (Ministry of Education), Zhejiang University, Hangzhou, 310027, P. R. China; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China. Electronic address:

In this study, a blend membrane consisting of polyvinylidene fluoride (PVDF) and tertiary amine containing random copolymer poly(methyl methacrylate-r-dimethylamino-2-ethyl methacrylate) (P(MMA-r-DMAEMA)) was fabricated and utilized as an adsorptive membrane for micropollutants (anionic dye and heavy metal ions) removal from aqueous solutions. Cross-linking the random copolymer by p-xylylene dichloride (XDC) produced the membrane with improved copolymer retention ratio and stability, while slightly variated physicochemical properties. Besides, the fluxes of crosslinked blend membranes dramatically increased from 0. Read More

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January 2022

S -( T rifluoromethyl) Benzothioate (TFBT): A KF-Based Reagent for Nucleophilic Trifluoromethylthiolation.

Chemistry 2022 Jan 18. Epub 2022 Jan 18.

Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Key Laboratory of Organofluorine Chemistry, 345 Ling-Ling Road, Xu-Hui District, 200032, Shanghai, CHINA.

S -(Trifluoromethyl) benzothioate (TFBT) is developed as an inexpensive, bench-stable and user-friendly trifluoromethylthiolation reagent, which can be easily synthesized using KF as the only fluorine source. By using TFBT, trifluoromethylthiolates with various counterions can be readily obtained. The synthetic application of TFBT is demonstrated by trifluoromethylthiolation-halogenation of arynes, bis(trifluoromethylthiolation)-halogenation of 1,2-benzdiynes, nucleophilic substitution of alkyl halides, deoxytrifluoromethylthiolation of alcohols, and cross-coupling with aryl and vinyl boronic acids. Read More

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January 2022

Organoantimony (III) Derivative induces necroptosis in human breast cancer MDA-MB-231 cells.

Anticancer Agents Med Chem 2022 Jan 18. Epub 2022 Jan 18.

Department of Physiology, School of Medicine, Hunan University of Chinese Medicine, Changsha, Hunan,410208, PR China.

Purpose: This study aimed to investigate the anticancer effect and the underlying mechanisms of organoantimony (III) fluoride on MDA-MB-231 human breast cancer cells.

Methods: Five cancer and one normal cell line were treated with an organoantimony (III) compound 6-cyclohexyl-12-fluoro-5,6,7,12-tetrahydrodibenzo[c,f][1,5]azastibocine (denoted as C4). The cell viability was detected by MTT assay. Read More

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January 2022

Fluoride contamination, spatial variation, and health risk assessment of groundwater using GIS: a high-density survey sampling in Weifang City, North China.

Environ Sci Pollut Res Int 2022 Jan 17. Epub 2022 Jan 17.

Tai'an Hydrological Center, Tai'an, 271000, China.

The present study, with the aid of GIS, utilizes high-density groundwater (GW) sampling data (1398 samples) to analyze the spatial variation characteristics of GW fluoride in Weifang City (WFC), and evaluate the health risks associated with drinking water routes. The concentration of fluoride in the GW of WFC is observed to be between 0.08 and 9. Read More

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January 2022

Double-Layer Solid Composite Electrolytes Enabling Improved Room-Temperature Cycling Performance for High-Voltage Lithium Metal Batteries.

ACS Omega 2022 Jan 21;7(1):994-1002. Epub 2021 Dec 21.

School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, China.

The development of solid-state electrolytes (SSEs) for high energy density lithium metal batteries (LMBs) usually needs to take into account of the interfacial compatibility against lithium metal and the electrolyte stability suitable for a high-potential cathode. In this study, through a facile two-step coating process, novel double-layer solid composite electrolytes (SCEs) with Janus characteristics are customized for the high-voltage LMBs with improved room-temperature cycling performance. Among which, high-voltage resistant poly(vinylidene fluoride) (PVDF) is adopted here for the construction of an electrolyte layer facing the cathode, while the other layer against the lithium anode is composed of the polymer matrix of poly(ethylene oxide) (PEO) blended with PVDF to obtain a lithium metal-friendly interface. Read More

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January 2022

In vitro evaluation of Sensi-IP®: A soluble and mineralizing sensitivity solution.

Heliyon 2022 Jan 25;8(1):e08672. Epub 2021 Dec 25.

Department of Applied Oral Sciences, Faculty of Dentistry, Dalhousie University, B3H 4R2, Canada.

Objectives: Sensi-IP®OG (SIP-OG) and Sensi-IP®FF (SIP-FF) are soluble bioactive glasses developed to treat dentin hypersensitivity and promote remineralization. Evaluation of their therapeutic potential to reduce dentin hypersensitivity and recover enamel strength was evaluated using standardized in vitro assessments based on simulated use.

Methods: To assess dentin occlusion a visual occlusion methodology was employed. Read More

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January 2022

Implementing Standardized Patient Caregivers to Practice Difficult Conversations in a Pediatric Dentistry Course.

MedEdPORTAL 2022 3;18:11201. Epub 2022 Jan 3.

Professor, Division of Pediatric and Public Health, and Associate Dean for Educational Leadership and Innovation, Academic Affairs, University of North Carolina at Chapel Hill Adams School of Dentistry.

Introduction: Standardized patient (SP) methodology has been used in health professional education to help students develop communication, deeper diagnostic reasoning, and critical thinking skills. Few examples demonstrate the use of SPs to practice difficult conversations with pediatric caregivers in the pediatric dentistry literature. The objective of this educational activity was to describe the implementation of three SPs in a pediatric dentistry course for second-year dental students. Read More

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January 2022

An Experimental and Clinically Controlled Study of the Prevention of Dental Caries Using 1.23% Fluoride Gel in Elderly Patients.

J Int Soc Prev Community Dent 2021 Nov-Dec;11(6):661-670. Epub 2021 Nov 30.

Dong Da General Hospital, Hanoi, Vietnam.

Aim: To describe the enamel and dentin fluoride mineralization process in practical application and assess the fluoride gel (NaF 1.23%) effectiveness in dental caries prevention for elderly patients.

Materials And Methods: Two different types of study were applied: (a) experimental study of fluoride mineralization of enamel and dentin ; (b) clinical controlled interventional studies of the effectiveness in dental caries prevention using 1. Read More

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November 2021

Comparing the Effectiveness of Herbal and Conventional Dentifrices in Reducing Dental Plaque and Gingivitis: A Systematic Review.

J Int Soc Prev Community Dent 2021 Nov-Dec;11(6):601-608. Epub 2021 Nov 30.

Department of Public Health Dentistry, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India.

Introduction: The important cause of chronic gingivitis was proved to be dental plaque, which is a well-organized biofilm. However, self-care efforts or mechanical control of dental plaque by toothbrushing was important; these alone will not be enough to prevent gingivitis.

Aim: The aim of the present systematic review was to compare the effectiveness of herbal and conventional toothpastes on reduction of dental plaque and gingivitis. Read More

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November 2021