Influence of Curing Light Type and Staining Medium on the Discoloring Stability of Dental Restorative Composite

American Journal of Biochemistry and Biotechnology, Volume 13, Issue 1, Pages 42-50, 2017; DOI: 10.3844/ajbbsp.2017.42.50

9 Pages Posted: 1 Dec 2017

See all articles by Ayman Al. Dharrab

Ayman Al. Dharrab

King Abdulaziz University - Advanced Technology Dental Research Laboratory

Muhammad S. Zafa

Taibah University

Erum Khan

Dental and Medical College - Department of Dental Biomaterials and Restorative Dentistry

Raffaella Aversa

Advanced Material Lab - Department of Architecture and Industrial Design

Relly Victoria Petrescu

Polytechnic University of Bucharest - ARoTMM-IFToMM

Antonio Apicella

Advanced Material Lab - Department of Architecture and Industrial Design

Florian Ion Petrescu

Polytechnic University of Bucharest - ARoTMM-IFToMM

Date Written: November 29, 2017

Abstract

Discoloration 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.

Note: © 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.

Suggested Citation

Al. Dharrab, Ayman and Zafa, Muhammad S. and Khan, Erum and Aversa, Raffaella and Petrescu, Relly Victoria and Apicella, Antonio and Petrescu, Florian Ion, Influence of Curing Light Type and Staining Medium on the Discoloring Stability of Dental Restorative Composite (November 29, 2017). American Journal of Biochemistry and Biotechnology, Volume 13, Issue 1, Pages 42-50, 2017; DOI: 10.3844/ajbbsp.2017.42.50 . Available at SSRN: https://ssrn.com/abstract=3079365

Ayman Al. Dharrab

King Abdulaziz University - Advanced Technology Dental Research Laboratory ( email )

Jeddah
Saudi Arabia

Muhammad S. Zafa

Taibah University ( email )

Prince Naif Ibn Abdulaziz, Tayba, Medina Saudi Ara
Mediana, Madinah
Saudi Arabia

Erum Khan

Dental and Medical College - Department of Dental Biomaterials and Restorative Dentistry ( email )

Pakistan

Raffaella Aversa

Advanced Material Lab - Department of Architecture and Industrial Design ( email )

81031 Aversa (CE)
Italy

Relly Victoria Petrescu

Polytechnic University of Bucharest - ARoTMM-IFToMM ( email )

Romania

Antonio Apicella

Advanced Material Lab - Department of Architecture and Industrial Design ( email )

81031 Aversa (CE)
Italy

Florian Ion Petrescu (Contact Author)

Polytechnic University of Bucharest - ARoTMM-IFToMM ( email )

Romania

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