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Petrescu, Florian Ion
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Publications (10/10 displayed)
- 2023Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocompositescitations
- 2023A Comprehensive Evaluation of the Mechanical Properties of Rubberized Concretecitations
- 2022Hydrogen Production and Degradation of Ciprofloxacin by Ag@TiO2-MoS2 Photocatalystscitations
- 2019On the use of infrared thermography and acousto-ultrasonics NDT techniques for ceramic-coated sandwich structurescitations
- 2017Extended MTSN criterion for fracture analysis of soda lime glasscitations
- 2017Nano-Diamond Hybrid Materials for Structural Biomedical Applicationcitations
- 2017Influence of Curing Light Type and Staining Medium on the Discoloring Stability of Dental Restorative Compositecitations
- 2017Processability of Bulk Metallic Glassescitations
- 2016Biomechanically Inspired Shape Memory Effect Machines Driven by Muscle like Acting NiTi Alloyscitations
- 2016Glassy Amorphous Metal Injection Molded Induced Morphological Defectscitations
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article
Influence of Curing Light Type and Staining Medium on the Discoloring Stability of Dental Restorative Composite
Abstract
Influence of Curing Light Type and Staining Medium on the Discoloring Stability of Dental Restorative Composite Jamaluddin Syed, Ayman Al. Dharrab, Muhammad S. Zafa, Erum Khand, Raffaella Aversa, Relly Victoria V. Petrescu, Antonio Apicella and Florian Ion T. PetrescuDOI : 10.3844/ajbbsp.2017.42.50American Journal of Biochemistry and BiotechnologyVolume 13, Issue 1Pages 42-50AbstractDiscoloration kinetics of 4 commercial nano-filled resin composites polymerized with LED and QTH source types in 4 different staining media held at 37°C are investigated. Quartz Tungsten Halogen (QTH) and Light Emitting Diode (LED) were used. Dental composites color change was monitored with a digital spectrophotometer at one, two and four weeks for quantitative comparison. The kinetics and intensities of the color change in accelerated aging tests in staining media were monitored and discussed. Discoloring followed diffusive driven kinetics. The four composites polymerized with QTH light showed higher differences in color change intensities compared to LED cured ones. All the QTH cured samples have shown significant higher variations of color changes intensities compared to LED samples (p<0.05). LED cured composite showed comparatively more stable initial shade persistence than QTH cured ones, which may be explained in terms of higher level of polymerization and surface hardness reached by the LED light cure resinous composite matrix.Copyright© 2017 Jamaluddin Syed, Ayman Al. Dharrab, Muhammad S. Zafa, Erum Khand, Raffaella Aversa, Relly Victoria V. Petrescu, Antonio Apicella and Florian Ion T. Petrescu. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.