نتایج جستجو برای: brushing and bearing metals
تعداد نتایج: 16849743 فیلتر نتایج به سال:
OBJECTIVE This study evaluated the effects of three post-brushing mouthwashes containing 0 ppm F, 225 ppm F, and 500 ppm F, respectively, on salivary fluoride retention after brushing with 1450 ppm fluoride (as NaF) toothpaste and rinsing with water immediately after brushing. METHODS In this three-phase, randomized, cross-over study, an ion-specific electrode was used to measure salivary F l...
PURPOSE Our study aimed to test the null hypothesis that whitening and non-whitening dentifrices affect similarly the surface roughness of commercial microhybrid composites, independent of the brushing time. MATERIALS AND METHODS One hundred and ninety-two disc-shaped specimens of Filtek Z250 (3 M/ESPE, St. Paul, MN, USA) and Rok (SDI, Australia) were built up and randomly assigned to 24 grou...
BACKGROUND The application of computer-aided design computer-aided manufacturing (CAD CAM) technology in the fabrication of complete dentures, offers numerous advantages as it provides optimum fit and eliminates polymerization shrinkage of the acrylic base. Additionally, the porosity and surface roughness of CAD CAM resins is less compared to conventionally processed resins which leads to a dec...
PURPOSE The purpose of this study was to examine tooth-brushing frequency in 575 urban and nearby suburban African American children as part of a comprehensive risk-reduction study for students at high risk for violence, drugs, school delinquency, and unsafe sexual behaviors to determine which covariates predicted tooth-brushing frequency. METHODS Students were surveyed 5 times, from the begi...
Introduction: The guidance given to young children in tooth brushing is important not only for preventing caries and gingivitis but also for teaching young children the concept of oral hygiene, as a first step towards acquiring regular hygienic habits in their daily lives. Aim: To evaluate the tooth brushing ability in children aged 3 to 12 years and its relation to type of grip used, and the d...
PURPOSE As they grow, children develop their attitude and behavior related to tooth brushing by taking their parents' oral-dental health behavior as an example. The purpose of this study was to assess whether there was a similarity in tooth brushing between primary school-age children and their parents presenting to the Department of Oral, Dental and Jaw Diseases and Surgery and the Department ...
PURPOSE Several investigations have demonstrated toothbrush-induced bacteremias. Transient bacteremias are well tolerated by healthy individuals but may increase endocarditis risk in patients with cardiac conditions. This study assessed bacteremia levels after brushing with either the Sonicare electric toothbrush or a manual toothbrush. METHODS Fifty healthy children receiving dental treatmen...
background this study aimed to assess the effects of maternal self-efficacy and oral health-related knowledge on pre-school children oral hygiene behavior. materials and methods this cross-sectional study was conducted on 301 mothers with children aged 2–6 years old randomly selection from health centers of tabriz, iran. data were collected using self-report questionnaires including demographi...
carbon-bearing Ni(II)-femte (CBNF) was prepared by repeated decomposition of CO2 on Hz-reduced Ni(II> femte. The material was also characterized by Mossbauer spectra, XRD and chemical analysis. A peculiar amorphous surface layer composed of carbon, divalent transition metals and oxide ions (CIO layer) was found to be synthesized on the surface of the CBNF. Deposited carbon on the CBNF was chara...
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