Identification and quantification of monomers released from dental composites using HPLC

Brazilian Archives of Biology and Technology

Lucí Regina Panka Archegas²  Rodrigo Nunes Rached²  Sérgio Aparecido Ignacio²  Eliane Carvalho De Vasconcelos¹  Débora Toledo Ramos¹  Evelise Machado De Souza² 

[1] ,Pontifícia Universidade Católica do Paraná Centro de Ciências Biológicas e da Saúde Curitiba PR ,Brasil

关键词: Dental composites;    monomers;    HPLC;    TEGDMA;    Bis-GMA;    UDMA;   

DOI  :  10.1590/S1516-89132009000400009

来源: SciELO

【 摘 要 】

The aim of this study was to detect and quantify the main residual monomers released from composites, using high performance liquid chromatography (HPLC). Discs were made with dental composites (Herculite XRV, Tetric Ceram and Filtek Z250) and immersed in deionized water at 37ºC for 28 days, with water changes in 1, 7, 14 and 21 days. The mean concentration of residual monomers were subject to the Kruskal-Wallis test (p<0.05). Tetric Ceram exhibited significantly higher concentrations of leached monomers. Bis-GMA was the monomer released in lower concentrations for all the materials. There was no statistical difference between the amounts of TEGDMA and UDMA. Most of the monomers demonstrated maximal concentration at the 7-day period. The HPLC analysis identified Bis-GMA, TEGDMA and UDMA in detectable quantities for all the tested composites.

【 授权许可】

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