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The purpose of this study was to determine the efficacy of fluoride varnish (5% sodium fluoride, Duraphat®, Colgate) in reverting white spot lesions (WSLs) after fixed orthodontic treatment. This study was a randomized, parallel group, controlled clinical trial. Using saline solution as control, 110 participants (mean age ± standard deviation: 16.6 ± 3.2(More)
Most manifestations of candidiasis are associated with biofilm formation occurring on the surfaces of host tissues and medical devices. Candida albicans is the most frequently isolated causative pathogen of candidiasis, and the biofilms display significantly increased levels of resistance to the conventional antifungal agents. Eugenol, the major phenolic(More)
Knowledge of the polymicrobial etiology of root caries is limited. To conduct a comprehensive research study on root caries, we utilized 454-pyrosequencing of 16S rRNA gene libraries and quantitative PCR to compare supra-gingival bacterial communities from healthy sites and carious sites of 21 patients with root caries (Patient-controls and Patient-cases)(More)
OBJECTIVE To determine the current prevalence and severity of caries in primary dentition in a preschool population in 2 provinces in China, and to investigate the relationship between caries experience and sociodemographic factors, parental characteristics, dietary habits, and oral hygiene practice. METHOD AND MATERIALS A cross-sectional survey was(More)
PURPOSE To describe the caries status and oral health-related behaviors of three- to five-year-old Chinese children by their ethnic background, and to identify potential determinants of caries experience. MATERIALS AND METHODS A cross-sectional survey was undertaken in a multi-ethnic province (Guangxi) in Southern China. Representative samples of(More)
The hypotheses tested were: survival rate of fully and partially retained glass-carbomer sealants is higher than those of high-viscosity glass-ionomer, with and without energy supplied, and that of resin composite; survival rate of fully and partially retained sealants of high-viscosity glass-ionomer with energy supplied is higher than those without energy(More)
OBJECTIVE The purpose of this survey was to assess dental knowledge and behaviors of the teachers and mothers of school children. METHODS All data was collected from 1365 mothers of first grade students and 215 schoolteachers in Yichang, Hubei by using questionnaires and, analyzed using SPSS software. RESULTS The level of dental knowledge was higher(More)
The purpose of this study was to determine the relationships among early childhood caries (ECC), root caries (RC), the quantity of Streptococcus mutans in saliva, and the concentrations of total and specific secretory IgA (sIgA). Saliva samples were collected from 70 children, 3-4 yr of age, with and without ECC, and from 43 adults, ≥60 yr of age, with and(More)
BACKGROUND A number of studies recently revealed a link between periodontal disease and preterm birth (PTB). PTB can be induced by dental infection with Porphyromonas gingivalis (Pg), a periodontopathic bacterium. This study aims to investigate responses of human extravillous trophoblast-derived HTR8/SVneo cells to Pg infection. METHODS Cell apoptosis,(More)
OBJECTIVES To investigate the effect of reducing the particle size of calcium sodium phosphosilicate (CSPS) bioactive glass from ~14 µm (NovaMin®) to ~4 µm (Vitryxx®), and of changing the fluoride source in a 5% CSPS dentifrice from sodium monofluorophosphate (SMFP) to sodium fluoride (NaF) on the efficacy of CSPS-containing dentifrices in dentin(More)