Blue Tooth
Mostrando 13-24 de 32 artigos, teses e dissertações.
-
13. AVALIAÇÃO DAS DIFERENTES TÉCNICAS DE CLAREAMENTO DENTAL DE CONSULTÓRIO: EFETIVIDADE, SENSIBILIDADE PÓS-TRATAMENTO E EFEITOS SOBRE O COMPLEXO DENTINO-PULPAR / Assessment of different in-office tooth bleaching techniques: Effectiveness, sensitivity post-treatment and effects on the pulp-dentin complex
The use of bleaching gels with low hydrogen peroxide (HP) concentration, as well as the reduction of application times or its association with calcium-containing agents may be clinical approaches to reduce the amount of HP that reaches the pulp tissue to cause local damage. However, only a few data have been published about the pulp response of human teeth s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2012
-
14. Dental pulp vascular permeability changes induced by dental bleaching
Aiming to compare the effect of different light sources for dental bleaching on vascular permeability of dental pulps, forty-eight incisors were used. The bleaching agent (35 % hydrogen peroxide) was activated by halogen light; LED (Light Emitting Diode) or LED, followed by laser phototherapy (LPT) (λ = 780 nm; 3 J/cm²). After the bleaching procedures, the
Brazilian Archives of Biology and Technology. Publicado em: 2012-02
-
15. Análise fotoelástica da tensão de contração da polimerização de compósitos resinosos sob influência de técnicas restauradoras / Photoelastic analysis of polymerization shrinkage stress of composites under the influence of restorative techniques
Polymerization shrinkage stress is an undesirable and inevitable characteristic of adhesive restorations. It is important to understand the stress distribution to improve the clinical effectiveness of resin composite restoration. Chapter 1: The aim was to evaluate the polymerization shrinkage stress and degree of conversion of a resin composite material subm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2011
-
16. Estudo in vitro da variação do pH de agentes clareadores e seu efeito sobre o desgaste e rugosidade superficial do esmalte bovino após escovação simulada / Variation of pH bleaching gels, wear and roughness of bovine enamel after tooth brushing abrasion test.
This in vitro study evaluated the variation of the pH of bleaching gels, roughness and the wear on bovine enamel, after various in office bleaching protocols and brushing. Ninety fragments of enamel, measuring 15mm x 5mm, were randomly divided into nine groups (n=10) according to bleaching procedure: G1: control; G2: 35% hydrogen peroxide (HP) (Whiteness HP,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/05/2011
-
17. Effect of irradiation times on the polymerization depth of contemporary fissure sealants with different opacities
The aim of this study was to evaluate the depth of curing of 10 contemporary blue light-activated dental flowable materials at several opacities, influenced by different irradiation times using FT-IR spectroscopy. Fifty-five specimens (n = 5) with a 5-mm diameter and 1-mm thickness of translucent (Opallis Flow T), yellowed (Master Flow A2; Opallis Flow A2; N
Brazilian Oral Research. Publicado em: 2011-04
-
18. Efeito fotoiniciador sobre propriedades físicas, mecânicas e térmicas de compósitos experimentais fotoativados por luz de lâmpada halógena e LEDs / Effect of the photo-initiator on physical, mechanics and thermal properties of experimental composites photo-activated for halogen lamp and LEDs
The aim of this study was to analyze the spectrum of different lightcuring units (LCUs) and photo-initiators and yours influence in the physical and thermal properties and bond strength (BS) of experimental resin composites with different photo-initiators. A blend with BisGMA, UDMA, BisEMA, TEGDMA and 65 wt% of silanated filler particles was prepared with CQ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2010
-
19. Avaliação in vitro da terapia fotodinâmica sobre microrganismos cariogênicos presentes na saliva de crianças / In vitro evaluation of the photodynamic therapy effects on the cariogenic microrganisms in saliva of infants
The increase of bacterias resistance to conventional treatment resulted in the development of new therapeutic modalities for dental caries treatment and/or prevention. In this field, the use of photodynamic therapy (PDT) is suggested as an alternative for inactivation of patogenic microrganisms involved in the etiology of tooth decay. The aim of this study w
Publicado em: 2009
-
20. Análise do perfil de similaridade da microbiota subgengival de indivíduos com periodontite
The objective of this study was to analyze possible differences in the profile of similarity of the subgingival microbiota in subjects with clinical diagnosis of periodontal disease. Two hundred and twenty subjects with periodontal disease, participant of different clinical research on periodontal therapy developed for the group of research of the Periodonto
Publicado em: 2009
-
21. Amoxicilina e metronidazol sistêmicos como coadjuvantes à raspagem e alisamento radicular no tratamento da periodontite crônica: estudo clínico e microbiológico
The aim of this study was to evaluate and to compare the clinical and microbiological changes provided by scaling and root planing (SRP) associated or not with metronidazole or metronidazole and amoxicillin systemic in the treatment of subjects with chronic periodontitis 90 days post-therapy. Thirty-six subjects were randomly assigned to 3 groups, control (C
Publicado em: 2008
-
22. Influence of the type of framework system in the adaptation and microleakage of all-ceramic crowns / Influência do tipo de sistema de infra-estrutura na adaptação e microinfiltração de coroas totais cerâmicas
The objectives of this study were to quantify the microleakage and the loss of marginal adaptation before and after cementation of all-ceramic crowns, with four types of infrastructure systems, and to compare these parameters. After approval by the Committee on Ethics in Research of Dental School of University of São Paulo, 40 human third molars received al
Publicado em: 2008
-
23. Effect of acid etching of glass ionomer cement surface on the microleakage of sandwich restorations
The purposes of this study were to evaluate the sealing ability of different glass ionomer cements (GICs) used for sandwich restorations and to assess the effect of acid etching of GIC on microleakage at GIC-resin composite interface. Forty cavities were prepared on the proximal surfaces of 20 permanent human premolars (2 cavities per tooth), assigned to 4 g
Journal of Applied Oral Science. Publicado em: 2007-06
-
24. Avaliação da resistência à abrasão, microdureza superficial e estabilidade de cor de dentes artificiais de resina acrílica / Evaluation of the abrasion resistance, superficial microhardness and color stability of acrylic resin artificial teeth.
The objective of this work was to evaluate in vitro the abrasion resistance, the superficial microhardness and the color stability of acrylic resin artificial teeth. Seven groups (1-Biolux, 2 - Trilux, 3 - Blue Dent, 4 - Biocler, 5 - Orthosit-Vivodent, 6 - Postaris-Antaris, 7 - Gnathostar-Ivostar), composed of 12 upper premolar for each manufacturers, being
Publicado em: 2007