Results 61 to 70 of about 552 (165)
Contemporary Clinical Dentistry, 2018 Aim: This study evaluated the effect of staining and subsequent bleaching on the color stability and surface roughness of three resin composites. Materials and Methods: One hundred and eight customized plastic disks from a plastic mold with an outer ...
Abha Telang +5 more
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Degree of Conversion of Metacrylate- and Silorane-based Dental Composites at Various Depths and Using Different Matrix Bands [PDF]
Journal of Mashhad Dental School, 2018 Introduction:To improve the quality of tooth-colored restorations, various equipment and materials are being used. In this study, we sought to determine the degree of conversion of metacrylate- and silorane-based composites using transparent blue matrix ...
Mehrdad Barekatain +4 more
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Photoelastic evaluation of the effect of composite formulation on polymerization shrinkage stress
Brazilian Oral Research, 2012 We compared polymerization stress in two commercial composites and three experimental composites made using camphorquinone (CQ) and/or phenylpropanedione (PPD) as photoinitiators.
Karla Mychellyne Costa Oliveira +4 more
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Color stability of nano-filled, micro-hybrid, and silorane-based dental composite resin materials
Saudi Journal of Oral Sciences, 2016 Aim: The purpose of this study was to investigate the color stability of nano-hybrid, micro-hybrid, and silorane-based composite resin restorative materials upon exposure to staining agents.
Mohsen Saud M ALShetili +1 more
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Contemporary Clinical Dentistry, 2012 Context: Polymerization shrinkage in composite resins is responsible for microleakage. Methacrylate-based composite resins have linear reactive groups resulting in high polymerization shrinkage.
Poonam Bogra, Saurabh Gupta, Saru Kumar
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Microleakage in posterior teeth with different materials and different types of cavities
Indian Journal of Dental Research, 2019 Background: The purpose of this study was to investigate the behavior of a resin-based 2,2-bis (p-[2′-hydroxy-3′-methacryloxypropoxy] phenylene) propane and a composite resin modified with oxirane, regarding the ability of marginal sealing, both with ...
Everton Ribeiro dos Santos +1 more
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Polymerization shrinkage kinetics of silorane-based composites
Journal of Korean Academy of Conservative Dentistry, 2010 Dental composites have improved significantly in physical properties over the past few decades. However, polymerization shrinkage and stress is still the major drawback of composites, limiting its use to selected cases. Much effort has been made to make low shrinking composites to overcome this issue and silorane-based composites have recently been ...
Youngchul Kwon, In-Bog Lee
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Journal of Dental Research, Dental Clinics, Dental Prospects, 2015 Background and aims. Use of porcelain as inlays, laminates and metal-ceramic and all-ceramic crowns is common in modern dentistry. The high cost of ceramic restorations, time limitations and difficulty of removing these restorations result in delays in ...
Narmin Mohammadi +4 more
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Curing depth of a silorane-based resin composite
RSBO, 2016 The silorane-based resin appears aiming to minimize the effects of polymerization shrinkage, but other properties must be studied. Objective: To evaluate the polymerization depth of two composites with different organic matrix. Material and methods:80 cylindrical specimens were prepared using a metallic matrix, with three layers (top, middle and bottom)
null Guilherme Saintive Cardia +5 more
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Cytotoxicity and cytokine expression induced by silorane and methacrylate-based composite resins
Journal of Applied Oral ScienceThe successful use of composite resins in Dentistry depends on physicochemical properties, but also on the biological compatibility of resins, because of the close association between pulp and dentin.
Daniele Lucca LONGO +5 more
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