Results: 244

Avaliação da atividade antimicrobiana, análise elementar e da lixiviação da resina acrílica autopolimerizável modificada pela incorporação de clorexidina

O objetivo principal do presente estudo, considerando a importância do controle do biofilme, foi avaliar in situ a ação antimicrobiana e análise elementar da incorporação de diacetato de clorexidina(CHX) em resinas acrílicas a base de PMMA. Além disso, avaliar ex vivo o mecanismo de lixiviação ...

Effect of γ-lactones and γ-lactams compounds on Streptococcus mutans biofilms

J. appl. oral sci; 26 (), 2018
Abstract Considering oral diseases, antibiofilm compounds can decrease the accumulation of pathogenic species such as Streptococcus mutans at micro-areas of teeth, dental restorations or implant-supported prostheses. Objective To assess the effect of thirteen different novel lactam-based compounds on th...

Influence of Helicobacter pylori culture supernatant on the ecological balance of a dual-species oral biofilm

J. appl. oral sci; 26 (), 2018
Abstract Dental caries is a chronic progressive disease occurring in the tooth hard tissue due to multiple factors, in which bacteria are the initial cause. Both Streptococcus mutans and Streptococcus sanguinis are main members of oral biofilm. Helicobacter pylori may also be detected in dental plaque, p...

Model resin composites incorporating ZnO-NP: activity against S. mutans and physicochemical properties characterization

J. appl. oral sci; 26 (), 2018
Abstract Although resin composites are widely used in the clinical practice, the development of recurrent caries at composite-tooth interface still remains as one of the principal shortcomings to be overcome in this field. Objectives To evaluate the activity against S. mutans biofilm of model resin comp...

Doxycycline-containing glass ionomer cement for arresting residual caries: an in vitro study and a pilot trial

J. appl. oral sci; 26 (), 2018
Abstract In a previous study, we demonstrated that the incorporation of doxycycline hyclate (DOX) into resin-modified glass ionomer cement (RMGIC) inhibited important cariogenic microorganisms, without modifying its biological and mechanical characteristics. In this study, we keep focused on the effect o...

Effects of a food enriched with probiotics on Streptococcus mutans and Lactobacillus spp. salivary counts in preschool children: a cluster randomized trial

J. appl. oral sci; 26 (), 2018
Abstract Probiotics have provided benefits to general health, but they are still insufficient to dental health. Objective: This study aimed to evaluate milk supplemented with probiotic bacteria and standard milk, measured by levels of Streptococcus mutans (S. mutans) and Lactobacillus spp., in 3-4-year-...

Evaluation of physical-mechanical properties, antibacterial effect, and cytotoxicity of temporary restorative materials

J. appl. oral sci; 26 (), 2018
Abstract The objective of this study was to compare selective physical-mechanical properties, antibacterial effects and cytotoxicity of seven temporary restorative materials (TRM): five resin-based materials [Bioplic (B), Fill Magic Tempo (FM), Fermit inlay (F), Luxatemp LC (L) and Revotek LC (R)], and z...

Efecto in vitro antimicrobiano de commiphora myrrha mirra frente a streptococcus mutans
Antimicrobial in vitro effect of commiphora myrrha myrrh against streptococcus mutans

La Organización Mundial de la Salud (OMS) en los últimos años ha impulsado el uso de la medicina tradicional como una alternativa en la salud primaria y sobre todo en áreas rurales donde se dificulta el acceso a la atención médica oportuna. Esta investigación plantea tres fases: Estudio etnofarmac...

Chemical Composition and Antibacterial Activity of the Essential Oil of Vitex agnus-castus L. (Lamiaceae)

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT Abnormal multiplication of oral bacteria causes dental caries and dental plaque. These diseases continue to be major public health concerns worldwide, mainly in developing countries. In this study, the chemical composition and antimicrobial activity of the essential oil of Vitex agnus-castus lea...

Effect of TiO2 nanoparticles incorporation on antibacterial properties and shear bond strength of dental composite used in Orthodontics

ABSTRACT Introduction: Plaque accumulation and bond failure are drawbacks of orthodontic treatment, which requires composite for bonding of brackets. As the antimicrobial properties of TiO2 nanoparticles (NPs) have been proven, the aim of this study was to evaluate the antimicrobial and mechanical prop...