A5070770049- Oral microbiology and periodontitis research
- Dental Erosion and Treatment
- Dental Health and Care Utilization
- Endodontics and Root Canal Treatments
- Adenosine and Purinergic Signaling
- Biochemical Analysis and Sensing Techniques
- Dental Anxiety and Anesthesia Techniques
- Dental materials and restorations
- Dental Research and COVID-19
- Genetics and Neurodevelopmental Disorders
- Bee Products Chemical Analysis
- Consumer Attitudes and Food Labeling
- HIV/AIDS oral health manifestations
- Prenatal Substance Exposure Effects
- Pancreatic function and diabetes
- Milk Quality and Mastitis in Dairy Cows
- Chemical Reaction Mechanisms
- Oral and Maxillofacial Pathology
- Oral Health Pathology and Treatment
- Scientific and Engineering Research Topics
- COVID-19 diagnosis using AI
- Environmental and biological studies
- Oral and gingival health research
- Salivary Gland Disorders and Functions
- Olfactory and Sensory Function Studies
Universidade Federal do Rio Grande do Sul
2007-2024
University of North Carolina at Chapel Hill
2023
Fundação Faculdade de Odontologia
2023
The participation of ecto-ATP diphosphohydrolase (CD39; ecto-NTPDase) and ecto-5'-nucleotidase (CD73) activities in the nucleotide hydrolysis by salivary gland cells from rats was evaluated. We investigated biochemical characteristics these ectoenzymes cultured submandibular glands rats. V(max) for ATP, ADP AMP were 2275+/-153 (mean+/-SEM, n = 4), 941+/-96 5) 175+/-5 nmol Pi liberated per min mg protein, respectively. K(m) values 224+/-8 microM 163+/-15 117+/-5 5), competition plot showed...
Objective This study aimed to analyze the functional profile of supragingival biofilm from sound (CAs), active (CAa), and inactive (CAi) enamel caries lesions caries-active individuals provide insights into diversity biological processes regarding dysbiosis. Methodology A metatranscriptome analysis was performed in samples collected five individuals. Total RNA extracted, microbial cDNAs were obtained sequenced (Illumina HiSeq3000). Trimmed data submitted SqueezeMeta pipeline co-assembly mode...
Dental biofilm and oral health diseasesCan hormonal changes during puberty have an effect on the quality of biofilm?Ricardo Teles: It is difficult to know whether are causing behavioral changes, thus leading gingivitis, or directly affecting receptors in gingiva, increasing sensitivity effects plaque.
This study evaluated the numbers and determined proportion of mutans streptococci Lactobacillus spp., which are possible relevant cariogenic organisms, in biofilms recovered from lesions at root surfaces with active caries (ARC), inactive lesions, sound (SRS). Samples were cultured MSB agar for counts, Rogosa spp. brain-heart infusion total viable anaerobic counts. After incubation, number colony-forming units (CFUs) was compared between groups by Mann-Whitney U test a significance level set...
Tooth whitening can be performed at the dental office, at-home or upon use of OTC (Over-the-Counter) products. Among latter, there are toothpastes that promise to bleach and prevent tooth staining. Objectives: (1) investigate bleaching abrasive potential different dentifrices enamel; (2) evaluate effect Oral-B 3D White Perfection® (Oral-B) toothpaste in preventing Materials Methods: Bovine enamel samples were stained brushed for 14 days with water (negative control) products: Colgate Total...
Objetivo: avaliar a atividade antimicrobiana in vitro daplanta Stevia rebaudiana Bertoni e de adoçantes nãocalóricos sobre o crescimento Streptococcus mutanse Lactobacillus casei, micro-organismos cariogênicospresentes na cavidade bucal. Materiais método: oestudo foi realizado utilizando as cepas padrões S.mutans (UA159) L. casei (ATCC7469). Foram avaliadosdiferentes compostos não calóricos substitutos dasacarose nas concentrações 1%, 5% 10%: eritritol(ER), Fit Sucralose® (SU), Stevita®...
Objective: Evaluate, in vitro, the antimicrobial activity of propolis suspension 5% and 10% against Enterococcus faecalis (ATCC 29212). Methods: The agar diffusion test disc method were used for following substances: dry extract at (n=19) (n=19), chlorhexidine (n=19 positive control) propylene glycol negative control). halos inhibition measured after 24 hours. Results: Statistically significant difference observed through Kruskal Walis (P<0,001). group showed bacterial growth with average...
Aim: Stevia rebaudiana Bertoni (Stevia) is a natural non-caloric sweetener that can modify the cariogenicity of biofilms. This study aimed to evaluate effect infusion in microbial and biochemical composition biofilms formed presence sucrose on enamel demineralization. Materials Methods: In cross-over design, eleven volunteers wore an intraoral palatal appliance containing 4 slabs bovine during 3 phases 7 days each. Sucrose solution (20%) was dripped onto 8 times/day 0.9% sodium chloride...
Objetivo: avaliar a eficácia de um dentifrício, que contém em sua composição extratos vegetais e xilitol para inibição Streptococcus mutans (UA159). Materiais método: verificação da atividade antimicrobiana, foram realizados ensaios in vitro difusão ágar, baseados na metodologia norma M2A8 Anvisa. O estudo foi feito utilizando inóculo 108 UFC/mL cepa S. mutans. princípio básico uma solução dentifrício superfície do ágar partir disco impregnado. ensaio realizado como controle negativo água...
Introdução: A Stevia rebaudiana é uma planta, nativa da América do Sul, qual extraída a stevia, um adoçante natural não calórico com potencial maior que sacarose, sem efeitos adversos e tem demonstrado possuir muitos benefícios para saúde sistêmica e, mais recentemente, oral. O objetivo presente revisão de literatura apresentar os como importante opção substituição uso sacarose dos adoçantes artificiais, principalmente no se refere bucal. Discussão: Os estudos sobre contribuem importantes...