Long-Term Release of Monomers from Modern Dental-Composite Materials

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Long-Term Release of Monomers from Modern Dental-Composite Materials. / Polydorou, Olga; König, Armin; Hellwig, Elmar et al.
in: European Journal of Oral Sciences, Jahrgang 117, Nr. 1, 02.2009, S. 68-75.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Polydorou O, König A, Hellwig E, Kümmerer K. Long-Term Release of Monomers from Modern Dental-Composite Materials. European Journal of Oral Sciences. 2009 Feb;117(1):68-75. doi: 10.1111/j.1600-0722.2008.00594.x

Bibtex

@article{b866df977ceb4d4ea673f8e6a8bdfbfb,
title = "Long-Term Release of Monomers from Modern Dental-Composite Materials",
abstract = "The elution of monomers from composite materials influences the biocompatibility of dental restorations. The purpose of the present study was to investigate the elution of monomers [bisphenol A glycidyl methacrylate (BisGMA), triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), and bisphenol A (BPA)] from two light-cured materials (nanohybrid and ormocer) and from a chemically cured composite material, after different curing times (0, 20, 40 and 80 s) and different storage periods (24 h, 7 d, 28 d, and 1 yr after curing). Each specimen was stored in 1 ml of 75% ethanol. This medium was renewed after 24 h, 7 d, 28 d, and 1 yr. The ethanol samples were analyzed using liquid chromatography tandem mass spectrometry (LC-MS/MS). The amount of monomers released from the nanohybrid and the chemically cured composite was significantly higher than released from the ormocer. The curing time exerted a significant effect on the release of monomers. For the nanohybrid, less monomer was released after increasing the curing time. For the ormocer, 80 s of curing resulted in a higher degree of monomer release. The effect of storage differed between the monomers. Although the elution of TEGDMA was significantly decreased after storage for 28 d and 1 yr, a similar amount of BisGMA was released at each storage time-point analyzed, even after 1 yr. The present study showed that ormocer released a very small amount of monomers compared with the other materials. {\textcopyright} 2009 The Authors.",
keywords = "Composite, Dental restorative material, Monomer, Photopolymerization",
author = "Olga Polydorou and Armin K{\"o}nig and Elmar Hellwig and Klaus K{\"u}mmerer",
year = "2009",
month = feb,
doi = "10.1111/j.1600-0722.2008.00594.x",
language = "English",
volume = "117",
pages = "68--75",
journal = "European Journal of Oral Sciences",
issn = "0909-8836",
publisher = "Wiley-Blackwell Publishing Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - Long-Term Release of Monomers from Modern Dental-Composite Materials

AU - Polydorou, Olga

AU - König, Armin

AU - Hellwig, Elmar

AU - Kümmerer, Klaus

PY - 2009/2

Y1 - 2009/2

N2 - The elution of monomers from composite materials influences the biocompatibility of dental restorations. The purpose of the present study was to investigate the elution of monomers [bisphenol A glycidyl methacrylate (BisGMA), triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), and bisphenol A (BPA)] from two light-cured materials (nanohybrid and ormocer) and from a chemically cured composite material, after different curing times (0, 20, 40 and 80 s) and different storage periods (24 h, 7 d, 28 d, and 1 yr after curing). Each specimen was stored in 1 ml of 75% ethanol. This medium was renewed after 24 h, 7 d, 28 d, and 1 yr. The ethanol samples were analyzed using liquid chromatography tandem mass spectrometry (LC-MS/MS). The amount of monomers released from the nanohybrid and the chemically cured composite was significantly higher than released from the ormocer. The curing time exerted a significant effect on the release of monomers. For the nanohybrid, less monomer was released after increasing the curing time. For the ormocer, 80 s of curing resulted in a higher degree of monomer release. The effect of storage differed between the monomers. Although the elution of TEGDMA was significantly decreased after storage for 28 d and 1 yr, a similar amount of BisGMA was released at each storage time-point analyzed, even after 1 yr. The present study showed that ormocer released a very small amount of monomers compared with the other materials. © 2009 The Authors.

AB - The elution of monomers from composite materials influences the biocompatibility of dental restorations. The purpose of the present study was to investigate the elution of monomers [bisphenol A glycidyl methacrylate (BisGMA), triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), and bisphenol A (BPA)] from two light-cured materials (nanohybrid and ormocer) and from a chemically cured composite material, after different curing times (0, 20, 40 and 80 s) and different storage periods (24 h, 7 d, 28 d, and 1 yr after curing). Each specimen was stored in 1 ml of 75% ethanol. This medium was renewed after 24 h, 7 d, 28 d, and 1 yr. The ethanol samples were analyzed using liquid chromatography tandem mass spectrometry (LC-MS/MS). The amount of monomers released from the nanohybrid and the chemically cured composite was significantly higher than released from the ormocer. The curing time exerted a significant effect on the release of monomers. For the nanohybrid, less monomer was released after increasing the curing time. For the ormocer, 80 s of curing resulted in a higher degree of monomer release. The effect of storage differed between the monomers. Although the elution of TEGDMA was significantly decreased after storage for 28 d and 1 yr, a similar amount of BisGMA was released at each storage time-point analyzed, even after 1 yr. The present study showed that ormocer released a very small amount of monomers compared with the other materials. © 2009 The Authors.

KW - Composite

KW - Dental restorative material

KW - Monomer

KW - Photopolymerization

UR - http://www.scopus.com/inward/record.url?scp=58449095881&partnerID=8YFLogxK

U2 - 10.1111/j.1600-0722.2008.00594.x

DO - 10.1111/j.1600-0722.2008.00594.x

M3 - Journal articles

C2 - 19196321

VL - 117

SP - 68

EP - 75

JO - European Journal of Oral Sciences

JF - European Journal of Oral Sciences

SN - 0909-8836

IS - 1

ER -

DOI