Detection of leached moieties from dental composites in fluid simulating food and saliva

Sheng Yang Lee, Evan H. Greener, Daniel L. Menis

研究成果: 雜誌貢獻文章

76 引文 (Scopus)

摘要

The purpose of this study was to analyze the IR spectra of a liquid simulating food and an artificial saliva following exposure to resin composites. Fourier transform infrared (FTIR) spectroscopy was used to analyze two solutions in which three commercially available dental composites (Marathon One, Den-Mat Co.; Z100, 3M Co.; Herculite XRV, Kerr Co.) were stored. The solutions used were: a food simulating fluid, 75 vol% ethanol/water, and an artificial saliva, Moi-SStir (Kingwood Labs., Inc.). Specimens (4.3 mm diam. × 2 mm thick) of the three resin composites were stored at 37°C in 60 mL of either Moi-Stir or the 75% ethanol solution for 7, 14, and 30 d. The FTIR spectra were obtained using a liquid sample ATR (attenuated total reflection) cell. No obvious leachable materials were seen from any of the composite specimens stored in artificial saliva up to 30 d of immersion. For the composites stored in ethanol, the observed spectra revealed increases in the principal absorption bands for the components of the three composite systems. Methacrylate skeletal vibrations (1015-815 cm-1) and -CH3 alkane, CH asymmetrical deformation vibrations (1520-1460 cm-1) appeared after 14 d of storage. A very strong peak characteristics of the aliphatic CC moiety (1640 cm-1) and carbonyl CO (1730 cm-1) occurred after 14 d. The peak heights of these two functional bands increased as a function of time and after 30 d of storage were approximately 5-7 times those produced after 7 d. Irregular OH bands (3500-3300 cm-1) were also observed after 30 d in ethanol. Irreversible processes such as the leaching of components occurs in the presence of ethanol. This phenomenon may cotribute to irreversible material degradation.

原文英語
頁(從 - 到)348-353
頁數6
期刊Dental materials : official publication of the Academy of Dental Materials
11
發行號5-6
DOIs
出版狀態已發佈 - 1995

指紋

Dental composites
Saliva
Artificial Saliva
Tooth
Ethanol
Food
Fluids
Composite Resins
Composite materials
Vibration
Resins
Alkanes
Methacrylates
Liquids
Immersion
Fourier Analysis
Fourier Transform Infrared Spectroscopy
Carbon Monoxide
Paraffins
Leaching

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Dentistry(all)

引用此文

Detection of leached moieties from dental composites in fluid simulating food and saliva. / Lee, Sheng Yang; Greener, Evan H.; Menis, Daniel L.

於: Dental materials : official publication of the Academy of Dental Materials, 卷 11, 編號 5-6, 1995, p. 348-353.

研究成果: 雜誌貢獻文章

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abstract = "The purpose of this study was to analyze the IR spectra of a liquid simulating food and an artificial saliva following exposure to resin composites. Fourier transform infrared (FTIR) spectroscopy was used to analyze two solutions in which three commercially available dental composites (Marathon One, Den-Mat Co.; Z100, 3M Co.; Herculite XRV, Kerr Co.) were stored. The solutions used were: a food simulating fluid, 75 vol{\%} ethanol/water, and an artificial saliva, Moi-SStir (Kingwood Labs., Inc.). Specimens (4.3 mm diam. × 2 mm thick) of the three resin composites were stored at 37°C in 60 mL of either Moi-Stir or the 75{\%} ethanol solution for 7, 14, and 30 d. The FTIR spectra were obtained using a liquid sample ATR (attenuated total reflection) cell. No obvious leachable materials were seen from any of the composite specimens stored in artificial saliva up to 30 d of immersion. For the composites stored in ethanol, the observed spectra revealed increases in the principal absorption bands for the components of the three composite systems. Methacrylate skeletal vibrations (1015-815 cm-1) and -CH3 alkane, CH asymmetrical deformation vibrations (1520-1460 cm-1) appeared after 14 d of storage. A very strong peak characteristics of the aliphatic CC moiety (1640 cm-1) and carbonyl CO (1730 cm-1) occurred after 14 d. The peak heights of these two functional bands increased as a function of time and after 30 d of storage were approximately 5-7 times those produced after 7 d. Irregular OH bands (3500-3300 cm-1) were also observed after 30 d in ethanol. Irreversible processes such as the leaching of components occurs in the presence of ethanol. This phenomenon may cotribute to irreversible material degradation.",
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