Efeito de diferentes meios de imersão na emissão fluorescente de resinas compostas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise isotópica da variabilidade natural do carbono-13 e análise energética em suco, néctar e refrigerante de maçã (malus domestica, borkh)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise clínica e histoquímica comparativa computadorizada pelo método da AgNOR de carcinoma espinocelular de diferentes regiões da boca de humanos

Pós-graduação em Odontologia - FOA

Raiz, planta e cultura: as roças indígenas nos hábitos alimentares do povo Paresi, Tangará da Serra, Mato Grosso, Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Teor de nutrientes e produtividade em híbridos de tomateiro em função de doses de COø aplicadas via água de irrigação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Protocolos e durações de adaptação às dietas com alta inclusão de concentrados para bovinos Nelore confinados

Pós-graduação em Zootecnia - FMVZ

Influência de diferentes íons sobre a erosão dentária

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Inquérito soro-epidemiológico em acadêmicos de medicina veterinária de duas universidades do oeste do Paraná para a ocorrência de toxoplasmose e leptospirose

Pós-graduação em Medicina Veterinária - FMVZ

Qualidade de vida de mulheres alcoolistas atendidas em serviço ambulatorial

Pós-graduação em Saúde Coletiva - FMB

Avaliação do consumo do álcool entre universitários

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito protetor do suco de laranja vermelha e dieta hiperlipídica nos parâmetros fisiológicos e marcadores bioquímicos em ratos submetidos à dieta hiperlipídica

Pós-graduação em Alimentos e Nutrição - FCFAR

Effects of an isotonic beverage on autonomic regulation during and after exercise

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Mineral loss and color change of enamel after bleaching and staining solutions combination

Pigments of food and beverages could affect dental bleaching efficacy. The aim of this investigation was to evaluate color change and mineral loss of tooth enamel as well as the influence of staining solutions normally used by adolescent patients undergoing home bleaching. Initial hardness and baseline color were measured on enamel blocks. Specimens were divided into five groups (n = 5): G1 (control) specimens were kept in artificial saliva throughout the experiment (3 weeks); G2 enamel was exposed to 10% carbamide peroxide for 6 h daily, and after this period, the teeth were cleaned and stored in artificial saliva until the next bleaching session; and G3, G4, and G5 received the same treatments as G2, but after bleaching, they were stored for 1 h in cola soft drink, melted chocolate, or red wine, respectively. Mineral loss was obtained by the percentage of hardness reduction, and color change was determined by the difference between the data obtained before and after treatments. Data were subjected to analysis of variance and Fisher's test (a = 0.05). G3 and G5 showed higher mineral loss (92.96 +/- 5.50 and 94.46 +/- 1.00, respectively) compared to the other groups (p = 0.05). G5 showed high-color change (9.34 +/- 2.90), whereas G1 presented lower color change (2.22 +/- 0.44) (p = 0.05). Acidic drinks cause mineral loss of the enamel, which could modify the surface and reduce staining resistance after bleaching. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)

Inhibition of tooth erosion by milk containing different fluoride concentrations: An in vitro study

Objectives: This in vitro study assessed the effect of milk containing different fluoride concentrations on tooth erosion.Methods: Bovine enamel and root dentine specimens were treated with: (1) bovine whole milk with 0 ppmF; (2) 2.5 ppm F; (3) 5 ppmF;(4) 10 ppmF (all after erosion); (5) whole milk with 0 ppm F (before erosion); (6) NaF (0.05% F, positive control, after erosion) or (7) 0.9% NaCl (negative control, after erosion). The specimens were submitted to pH cycles (4 x 90 s in soft drink) and treatments for 5 days. The specimens were immersed in the treatment solutions for 1 min(only at the first cycle each day) with further exposition to 1: 1 milk: saliva slurry for 10 min. The tooth loss was measured using a contact profilometer and statistically analysed (p < 0.05).Results: Rinsing with milk before erosive challenge significantly reduced tooth loss compared to negative control (67% and 24% reduction in dentine and enamel loss, respectively) and to milk after erosive challenge, only for dentine. The addition of fluoride to milk also reduced tooth loss compared to negative control, but with no significant differences among fluoride concentrations for enamel and dentine (mu m), respectively: 0 ppm (3.63 +/- 0.04 and 2.51 +/- 0.53), 2.5 ppm F (2.86 +/- 0.42 and 1.96 +/- 0.47), 5 ppm F (2.81 +/- 0.27 and 1.77 +/- 0.44), 10 ppm F (2.03 +/- 0.49 and 1.68 +/- 0.59). There was a negative and significant correlation between [F] and the tooth loss.Conclusions: Daily rinse with milk containing F is able to reduce both enamel and dentine erosion in vitro.Clinical significance: Since the prevalence of dental erosion is steadily increasing, rinse with milk or its derivate might be an important strategy to reduce the progression of tooth erosion. (C) 2013 Elsevier Ltd. All rights reserved.

Bacterial Cellulose/Chondroitin Sulfate for Dental Materials Scaffolds

Bacterial cellulose (BC) has become established as a remarkably versatile biomaterial and can be used in a wide variety of scientific applications, especially for medical devices. In this work, the bacterial cellulose fermentation process is modified by the addition of chondroitin sulfate (1% w/w) to the culture medium before the bacteria are inoculated. Besides, biomimetic precipitation of calcium phosphate of biological interest from simulated body fluid on bacterial cellulose was studied. Chondroitin sulfate influences in bacterial cellulose were analyzed using transmission infrared spectroscopy (FTIR), XRD (X-ray diffraction) and scanning electron microscopy (SEM). FTIR analysis showed interaction between chondroitin sulfate, bacterial cellulose and calcium phosphate and XRD demonstrated amorphous calcium phosphate and carbonated apatite on bacterial cellulose nanocomposites. SEM images confirmed incorporation of calcium phosphate in bacterial celluloe nanocomposite surface and uniform spherical calcium phosphate particles. Future experiments with cells adhesion and viability are in course.