| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Portugal, Jaime
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Understanding the Mechanical, Surface, and Color Behavior of Oral Bioactive Prosthetic Polymers under Biodegradation Processescitations
- 2019Surface properties after chemical aging of chlorhexidine delivery systems based on acrylic resincitations
- 2019Effect of surface treatment and the use of mouthwashes on repaired composite bond strength
- 2018Effect of Zirconia Pigmentation on Translucencycitations
- 2016Effect of ethanol solutions as post-polymerization treatment on the properties of acrylic reline resinscitations
- 2016Resin-bonded fixed dental prosthesis with a modified treatment surface in a zirconia framework: a case report
- 2016Resin-bonded fixed dental prosthesis with a modified treatment surface in a zirconia framework
- 2016Resin-bonded fixed dental prosthesis with a modified treatment surface in a zirconia framework:a case report
- 2015Resin composites curing inhibition by oclusal matrix materialscitations
- 2015Influence of exposure time and distance to light on the ability to composite light curingcitations
- 2012Effect of citric acid ageing on composite resin microhardness and flexural strength [Efeito do envelhecimento em ácido cítrico na microdureza e resistência à flexão de resinas compostas]
- 2009Grau de conversão de resinas compostas.influência do método de fotopolimerizaçãocitations
- 2008Shear bond strength of aged dental amalgam repaired with compositecitations
- 2007Clinical performance of an experimental veneering composite in FPDS. One-year report
Places of action
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article
Influence of exposure time and distance to light on the ability to composite light curing
Abstract
Objectives: To evaluate the influence of distance to light and exposure time on the ability to light curing four composites resins. Methods: One hundred and sixty discs were made, with 2 mm thick, according to the possible combinations between composite [FiltekTM Supreme XTE (3M-ESPE); FiltekTM Silorane (3M-ESPE); Grandio (R) SO (Voco); Herculite (R) XRV Ultra (Kerr)], distance to the light source (0, 2, 4, 6 mm) and time exposure (recommended by the respective manufacturer; 2 x recommended by the manufacturer). Thirty-two experimental groups were set (n=5). Knoop hardness (KH) was determined on the disc surface closest to the light source (top) and on the furthest surface (base). The microhardness ratio ( KH base / top KH) was calculated. The KH of the top surface data were analyzed using Kruskal-Wallis and Mann-Whitney tests (alpha = 0.05). Results: Both, the type of composite (p < 0.001) as the distance to light (p < 0.001), significantly influenced the KH of the top surface. However, the KH was not influenced by light exposure time (p = 0.072). Setting the light at 0 mm to composite top surface, the exposure time recommended by the manufacturer ensures proper curing of all composites tested. With 6 mm to light source, an adequate base polymerization was yielded in any of the experimental conditions. Conclusions: Increasing the distance between light source and composite has a negative influence on composite polymerization ability, mainly on the base surface. Doubling the light exposure time increased the polymerization ability of the base surface, however it didn't affect top surface microhardness. (C) 2015 Sociedade Portuguesa de Estomatologia e Medicina Dentaria. Published by Elsevier Espana, S.L.U.