Results 11 to 20 of about 390,566 (256)
Discrepancies in degree of conversion measurements by FTIR
Brazilian Oral Research, 2014 The purpose of this study was to evaluate the influence of the internal standard peak on the measured degree of conversion (DC) for methacrylate-based resins analyzed by Fourier-transform infrared spectroscopy (FTIR).
Fabrício Mezzomo Collares +3 more
doaj +5 more sources
Cytotoxicity and degree of conversion of methacrylate and silorane
Brazilian Journal of Oral Sciences, 2020 Composites have been proven to have a cytotoxiceffect on a variety of tissues and cells. Aim: The aim of thisstudy was to analyse the degree of conversion of resinsand its correlation with the cell viability in primary gingivalfibroblasts. Methods: Resin-
Virgínia Angélica Silva +4 more
doaj +5 more sources
Irreversible 2-conversion set in graphs of bounded degree [PDF]
Discrete Mathematics & Theoretical Computer Science, 2017 An irreversible $k$-threshold process (also a $k$-neighbor bootstrap percolation) is a dynamic process on a graph where vertices change color from white to black if they have at least $k$ black neighbors. An irreversible $k$-conversion set of a graph $G$
Jan Kynčl +2 more
doaj +5 more sources
Infrared spectroscopy: a tool for determination of the degree of conversion in dental composites [PDF]
Journal of Applied Oral Science, 2008 Infrared spectroscopy is one of the most widely used techniques for measurement of conversion degree in dental composites. However, to obtain good quality spectra and quantitative analysis from spectral data, appropriate expertise and knowledge of the ...
Luciene Gonçalves Palmeira Moraes +5 more
doaj +6 more sources
Long Term Degree of Conversion of two Bulk-Fill Composites
Acta Stomatologica Croatica, 2016 Objectives: To investigate the long-term development of the post-cure degree of conversion (DC) for two flowable bulk-fill composites. Materials and methods: Tetric EvoFlow Bulk Fill (TEFBF) and SDR were chosen due to their distinct compositional ...
Matej Par +5 more
doaj +3 more sources
Evaluation of the Polymerization Properties of Bulk-Fill Composite Resins [PDF]
Journal of Dental Materials and Techniques, 2021 Introduction: The aim was to evaluate the polymerization properties of bulk-fill composite resins in terms of the degree of conversion (%DC), Vickers hardness (HV). SonicFill (SF, Kerr, CA, USA), Tetric Evo Ceram Bulk-Fill (TECBF, Ivoclar Vivadent Schaan,
Latife Altınok Uygun +1 more
doaj +1 more source
A Converse Sum of Squares Lyapunov Result With a Degree Bound [PDF]
IEEE Transactions on Automatic Control, 2012 Sum of Squares programming has been used extensively over the past decade for the stability analysis of nonlinear systems but several questions remain unanswered. In this paper, we show that exponential stability of a polynomial vector field on a bounded set implies the existence of a Lyapunov function which is a sum-of-squares of polynomials.
Matthew M. Peet +1 more
openaire +3 more sources
Annals of Agricultural and Environmental Medicine, 2017 Introduction Composite materials used in dentistry indicate adverse biological effects in laboratory conditions. One reason for this activity is incomplete conversion of their polymer matrix, favoring chemical instability and release of biologically ...
Konrad Małkiewicz +6 more
doaj +1 more source
The polymerization efficiency of a bulk-fill composite based on matrix-modification technology [PDF]
Restorative Dentistry & Endodontics, 2020 ObjectivesTo evaluate the polymerization efficiency of a matrix-modified bulk-fill composite, and compare it to a conventional composite which has a similar filler system.
Tarek M. Elshazly +4 more
doaj +1 more source
Effects of Time Delay on Degree of Conversion of Contemporary Orthodontic Band Adhesives
Turkish Journal of Orthodontics, 2013 Objective:For prolonged use in the oral cavity, orthodontic band adhesives should have certain physical properties to ensure the best clinical performance.
Bayram Çörekci +4 more
doaj +1 more source