Release of monomers from four different composite materials after halogen and LED curing

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • Olga Polydorou
  • Armin König
  • Markus Jörg Altenburger
  • Martin Wolkewitz
  • Elmar Hellwig
  • Klaus Kümmerer

Purpose: To evaluate the release of monomers from four different composite materials (Ceram X, Filtek Supreme XT, Tetric Flow, Tetric EvoCeram), polymerized using either halogen or LED unit. Methods: Ten specimens were made for each material/unit combination. Each specimen was stored in 1 ml 75% ethanol. The storage medium was renewed after 1, 7 and 28 days. Aliquots of this medium were analyzed by LC-MS/MS. Results: The effect of the curing unit on monomers' release differed significantly among the materials (P< 0.0001). The amount of BisGMA and TEGDMA released from Ceram X was not influenced by the unit used (P> 0.05). Curing with LED reduced the amount of Bisphenol A released from Ceram X compared to halogen. For Filtek Supreme XT, the type of unit exerted a significant effect on the elution of BisGMA (P< 0.05). LED curing resulted in a higher release of TEGDMA and UDMA compared to halogen (P< 0.05). For Tetric Flow, LED curing resulted in lower monomer release (P< 0.0001). For Tetric EvoCeram, the amounts of BisGMA, UDMA and Bisphenol A were higher when polymerizing with LED compared to halogen. The release of substances was more material dependent and less influenced by the curing unit used.

Translated title of the contributionAbgabe von Monomeren aus vier verschieden zusammengesetzten Materialien nach Halogen und LED Aushärtung
Original languageEnglish
JournalAmerican Journal of Dentistry
Volume24
Issue number5
Pages (from-to)315-321
Number of pages7
ISSN0894-8275
Publication statusPublished - 01.10.2011

Recently viewed

Activities

  1. Dissertation "State interests vs citizens’ preferences : on which side do (Labour) parties stand?"
  2. Dissertation "Government alternation in Western Europe : a comparative exploration"
  3. At-Risk Students in Large Scale Assessments
  4. Historical Organizational Studies - Where next?
  5. Current overview of research on priority effects and their relevance to restoration
  6. Implementing an Internet-based platform for eating disorder screening, prevention, and treatment on college campuses: Preliminary results from a state-wide initiative.
  7. Metamorphosen
  8. Standardizing diversity in ‘global music’
  9. Science and Art of Simulation Workshop - SAS 2015
  10. MSc-Thesis: Leaf litter as template for ant communities in a tree diversity experiment
  11. Forschungsgruppe anwendungsorientierte Steuerlehre (FAST) (Externe Organisation)
  12. Making students becoming responsible citizens in 21st century by fostering mathematical reasoning about real-world applications
  13. More Successful Thanks To Qualification And Mentorship? Analyses Of Determinants Of The Professional Success Of School Principals
  14. Entwicklung und Validierung eines videobasierten Instruments zur Erfassung von Feedbackkompetenz.
  15. Die Unmöglichkeit einer Insel
  16. Projektbeirat
  17. IEEE International Conference on Information Communication and Signal Processing - ICICSP 2019 (Veranstaltung)
  18. "Integration on the ground" - Assumptions and Consequences of Neighbourhood Strategies
  19. 9th Conference of the Foundations of Digital Games - FDG 2014
  20. User Conference IAB Establishment Panel 2012
  21. Computersimulation und Super-GAU
  22. Modewort "Innovation"
  23. Exploring cultural landscape narratives to understand differences in meaning and their implications for governance
  24. Die Transformation des Kunstfeldes

Publications

  1. Recurring patterns and blueprints of industrial symbioses as structural units for an it tool
  2. The Integration of Wheelchair Users in Team Handball
  3. Framework, Drivers and Information Needs for Creating Business Cases for Sustainability
  4. Taking stock–Three years of addressing societal challenges on community level through action research
  5. A Smart Sensing Architecture for Misalignment Measurements
  6. Nutrients addition regulates temperature sensitivity of maize straw mineralization
  7. The Rhythm Method
  8. Portfolio optimisation of power futures market
  9. Consumer Preferences for Local Food: Testing an Extended Norm Taxonomy
  10. Prekäre Existenz
  11. Dealing with availability and response expectations: Are older employees at an advantage and why?
  12. Die Todesmärsche von Buchenwald
  13. MindMatters
  14. A Privacy-driven Enterprise Architecture Meta-Model for Supporting Compliance with the General Data Protection Regulation
  15. The use of player physical and technical skill match activity profiles to predict position in the Australian Football League draft
  16. Numerical study of electrode vaporization rates in an Automotive HVDC Relay in hydrogen and open air in a short circuit situation
  17. Assessing Collaborative Conservation
  18. Reference wages and turnover intentions
  19. The public and CCS
  20. Best-Practice-Beispiel: Wie kann Mentoring in die neue Studienorganisation implementiert werden?
  21. A Glance at the World
  22. Influence of Extrusion Rate on Microstructure and Mechanical Properties of Magnesium Alloy AM60 and an AM60-Based Metal Matrix Nanocomposite
  23. 'Crawling Jurisdiction'