Color Stability of Resin Composites Depends on The Filler and Chemical Surface Composition: an ex Vivo Study

Heribertus Dedy Kusuma Yulianto*, Margareta Rinastiti, Marco S. Cune, Henny C. Van der Mei

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

45 Downloads (Pure)

Abstract

Purpose: To investigate the cumulative effect of optical color dental resin composites and how this relates to bulk filler content and surface filler particle exposure and (changes) in the chemical composition of the composite surfaces. Methods: The 30 days oral exposure of dental composites, including wear and brushing with toothpaste, on optical color changes of two direct (Beautifil II, Filtek Z350 XT) and one indirect dental resin composite (Estenia C&B) was evaluated. The composites were inserted in an acrylic palatal appliance, and how this relates to bulk filler content, surface filler particle exposure, and (changes) in the chemical composition of the composite surfaces was investigated. Color values (ΔE) were evaluated according to the L, a, b, color coordinate system (International Commission on Illumination). Results: Significant discoloration occurred in all composites and was caused by a slightly darker, more reddish, and yellowish appearance of the composite that was in general not impacted by the absence or presence of brushing. The discoloration ΔE is related to bulk filler content, but not with filler particle exposure at the surface. Major increases in %N observed after intra-oral wear yield the conclusion that amines (i.e., photo-co-initiator) diffuse from the bulk to the composite surface to attract discolorants. In the absence of significant and systematic effects of brushing or not brushing, the causative discolorant is presumably the photoinitiator camphorquinone, known to produce a yellowish hue. Conclusions: Color stability of dental resin composites might be improved by changing the two-component photoinitiator/co-initiator system.

Original languageEnglish
Title of host publication6th Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices
Subtitle of host publicationProceedings of the 6th International Symposium of Biomedical Engineering, ISBE 2021
EditorsSiti Fauziyah Rahman, Ahmad Zakiyuddin, Yudan Whulanza, Nurul Intan
PublisherAmerican Institute of Physics Inc.
Number of pages10
ISBN (Electronic)9780735443716
DOIs
Publication statusPublished - 16-Aug-2022
Event6th International Symposium of Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices, ISBE 2021 - Depok, Virtual, Indonesia
Duration: 7-Jul-20218-Jul-2021

Publication series

NameAIP Conference Proceedings
Volume2537
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Symposium of Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices, ISBE 2021
Country/TerritoryIndonesia
CityDepok, Virtual
Period07/07/202108/07/2021

Keywords

  • Biomaterials
  • Camphorquinone
  • Color stability
  • Photoinitiator/co-initiator
  • X-ray photoelectron spectroscopy

Fingerprint

Dive into the research topics of 'Color Stability of Resin Composites Depends on The Filler and Chemical Surface Composition: an ex Vivo Study'. Together they form a unique fingerprint.

Cite this