IADR Abstract Archives

Color Stability of Recent Resin Composites

Objectives: To evaluate the color stability of recently resin composite continuously exposed to staining agent.
Methods: Disks of six resin composites (G-ænial™ A’CHORD; GC Corporation, Filtek Supreme XTE; 3M ESPE, Tetric EvoCeram; Ivoclar Vivadent, Tetric Prime; Ivoclar Vivadent, CeramX Spectra ST; Dentsply Sirona, Omnichroma; Tokuyama Dental) were prepared in diameter of 15 mm with 1.0 mm thickness (n=5). All resin composites shade was A2 except for Omnichroma that is only one-shade.
After polymerization and polished (SiC1000), specimens were immersed in distilled water or red wine for 7 days at 37°C. Color change [ (ΔE* ) ] was calculated by Spectrophotometer (CM-3610, Konica Minolta) over a white and black background. Data were analyzed with Tukey’s honestly significant difference multiple comparison test (p<0.05).
Results: All tested materials showed significant color changes after 7 days staining immersion. ΔE* of sample varied from 2.04 (G-ænial™ A’CHORD over black background) to 20.3 (Filtek Supreme XTE over white background). G-ænial™ A’CHORD ΔE* for color change was significantly lower than that of other resin composites.
Conclusions: Color stability of recent resin composites seems to be dependent on the composition of the product itself, and G-ænial™ A’CHORD was shown to have relatively high color stability among the six resin composites tested.

2021 IADR/AADR/CADR General Session (Virtual Experience)

2021
2279
Dental Materials 2: Polymer-based Materials
  • Mizukami, Hiroyuki  ( Toranomon Hospital , Tokyo , Toranomon Minato-ku , Japan ;  Showa University School of Dentistry , Tokyo , Kitasenzoku Ota-ku , Japan )
  • Suyama, Yuji  ( Toranomon Hospital , Tokyo , Toranomon Minato-ku , Japan )
  • Sugai, Rintaro  ( Showa University School of Dentistry , Tokyo , Kitasenzoku Ota-ku , Japan )
  • Niizuma, Yuiko  ( Showa University School of Dentistry , Tokyo , Kitasenzoku Ota-ku , Japan )
  • Kobayashi, Mikihiro  ( Showa University School of Dentistry , Tokyo , Kitasenzoku Ota-ku , Japan )
  • Manabe, Atsufumi  ( Showa University School of Dentistry , Tokyo , Kitasenzoku Ota-ku , Japan )
  • Yamada, Toshimoto  ( Toranomon Hospital , Tokyo , Toranomon Minato-ku , Japan )
  • Sugizaki, Jumpei  ( Toranomon Hospital , Tokyo , Toranomon Minato-ku , Japan )
  • NONE
    Poster Session
    Polymer-based Materials IX
    Saturday, 07/24/2021 , 11:00AM - 12:00PM
    Result of color change
     White
    Background
    (ΔE* Average value)
    White
    Background
    (Standard deviation)
    Black
    Background
    (ΔE* Average value)
    Black
    Background
    (Standard deviation)
    G-ænial ™ A’CHORD3.20.222.040.25
    Filtek Supreme XTE20.31.5617.031.70
    Tetric EvoCeram18.10.9413.970.74
    Tetric Prime14.52.5310.942.32
    CeramX Spectra ST7.60.226.090.23
    Omnichroma19.41.2213.900.62