Composite Resins
Mostrando 1-12 de 232 artigos, teses e dissertações.
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1. Effect of gastric acid on the surface roughness and bacterial adhesion of bulk-fill composite resins
Resumo O objetivo deste estudo in vitro foi avaliar o efeito do ácido gástrico na rugosidade superficial e na formação do biofilme nas resinas compostas de incremento único. Vinte e sete amostras de cada resina composta foram confeccionadas: G1: Filtek Z250 XT (Z250), G2: Filtek Bulk Fill (FTK), G3: Tetric N-Ceram Bulk Fill (TTC), and G4: Aura Bulk Fill
Brazilian Dental Journal. Publicado em: 2022
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2. Interfacial Stress and Bond Strength of Bulk-Fill or Conventional Composite Resins to Dentin in Class II Restorations
Resumo O objetivo foi avaliar a resistência de união à microtração (RUμT) à dentina e o estresse interfacial em cavidades classe II restauradas com resina composta de incremento único ou convencional e as interfaces marginais. Cavidades classe II na face mesial, com margem gengival em dentina, foram confeccionadas em 72 terceiros molares, sendo divid
Braz. Dent. J.. Publicado em: 2020-09
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3. Does Pigment Incorporation into Regular Composite Resins for Posterior Buildups Alter Their Bond Strength?
Resumo Levantes de mordida posterior são dispositivos para o tratamento ortodôntico confeccionados com resinas compostas ou materiais ionoméricos. Cuidado com a remoção destes se faz necessário para proteção da superfície dentária; para tanto, materiais pigmentados são preferidos por proporcionar melhor visualização. Este estudo propõe uma téc
Braz. Dent. J.. Publicado em: 2020-08
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4. Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm
Abstract: The aim of the present study was to evaluate the microtensile bond strength and the microleakage of a bulk-fill composite resin compared with a conventional incremental composite resin, in permanent molars and under cariogenic challenge using a Streptococcus mutans model. Permanent human third molars (n = 60) with an occlusal cavity of 5×3×2 mm w
Braz. oral res.. Publicado em: 02/12/2019
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5. The use of a liner under different bulk-fill resin composites: 3D GAP formation analysis by x-ray microcomputed tomography
Abstract Gap formation of composite resin restorations is a serious shortcoming in clinical practice. Polymerization shrinkage stress exceeds the tooth-restoration bond strength, and it causes bacterial infiltration within gaps between cavity walls and the restorative material. Thus, an intermediate liner application with a low elastic modulus has been advis
J. Appl. Oral Sci.. Publicado em: 25/11/2019
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6. Influence of Cavity Dimensions on Microleakage of Two Bulk-Fill Composite Resins
Abstract Objective: To evaluate the effect of cavity dimensions on the amount of microleakage in two different types of bulk-fill composite resins. Material and Methods: Forty class II cavities were prepared in the mesial and distal surfaces of human molars without any carious lesions. The samples were divided into 4 groups (n=10): Group 1: cavities with 3
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 31/10/2019
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7. Digital smile designing, pressing and stratifying ceramic lithium disilicate veneers to rehabilitate dental agenesis: a clinical report
RESUMO Este é um relato de caso de reabilitação estética anterior com facetas laminadas dos elementos 14 ao 24 confeccionadas com a cerâmica IPSE.max Ceram (Ivoclar -Vivadent), as quais substituíram facetas de resina composta insatisfatórias dos elementos 13 ao 23. Ressalta-se que o paciente possuía agenesia dos elementos 12 e 22, tornando-se necess�
RGO, Rev. Gaúch. Odontol.. Publicado em: 28/10/2019
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8. A randomized, prospective clinical study evaluating effectiveness of a bulk-fill composite resin, a conventional composite resin and a reinforced glass ionomer in Class II cavities: one-year results
Abstract Bulk-fill restorative materials such as bulk-fill composite resins and high viscous glass ionomer cements have become very popular materials in operative dentistry because their application is easy and time-saving. Objectives: The aim of this clinical study was to evaluate the clinical performance of a highly viscous reinforced glass ionomer materi
J. Appl. Oral Sci.. Publicado em: 07/10/2019
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9. Skin color affect the replacement of amalgam for composite in posterior restorations: a birth-cohort study
Abstract The aim of present study was to estimate the occurrence and associated factors for replacement of amalgam posterior restorations. A representative sample of all 5,914 births from the 1982 in Pelotas birth cohort study was prospectively investigated, and the posterior restorations were assessed at 24 (n = 720) and 31 years of age (n = 539). Individua
Braz. oral res.. Publicado em: 29/07/2019
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10. Physicomechanical and thermal analysis of bulk-fill and conventional composites
Abstract The aim of this study was to evaluate the degree of conversion (DC) and the thermal stability of bulk-fill and conventional composite resins. Eleven composite resin samples were prepared to evaluate the DC, Vickers microhardness (VMH), mass and residue/particle loss, glass transition temperature (Tg), enthalpy, and linear coefficient of thermal expa
Braz. oral res.. Publicado em: 18/03/2019
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11. Effect of radiant exposure and UV accelerated aging on physico-chemical and mechanical properties of composite resins
Abstract Currently, there is no consensus in terms of defining the minimum radiant exposure values necessary for achieving adequate properties of composite resin. In addition, the long-term influence that radiant exposure has on the properties of composite resins is still questionable. Objective: The objective of this study was to evaluate the effect of radi
J. Appl. Oral Sci.. Publicado em: 07/01/2019
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12. Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins
ABSTRACT This study aimed to determine the characteristics of Hibiscus sabdariffa as a fiber-reinforcement material for denture acrylic resins. The Hibiscus sabdariffa fiber was extracted by hot water retting. The fiber was treated at room temperature in aqueous solution of NaOH for 8 hours at 8% concentration. Micrometre gauge and Field emission scanning el
Matéria (Rio J.). Publicado em: 06/12/2018