Presence and leaching of bisphenol a (BPA) from dental materials
| Autor: | Cathrine Thomsen, Jan Tore Samuelsen, Hilde M. Kopperud, Hanne Wellendorf, Anette Kocbach Bølling, Rune Becher, Amrit Kaur Sakhi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Bisphenol A
endocrine system Dental materials BPA leaching urogenital system Health impact technology industry and agriculture 030206 dentistry Pulp and paper industry lcsh:RK1-715 stomatognathic diseases 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system chemistry lcsh:Dentistry 030225 pediatrics Environmental science General Materials Science Original Article health impact Leaching (metallurgy) Dental restorative materials hormones hormone substitutes and hormone antagonists |
| Zdroj: | Acta Biomaterialia Odontologica Scandinavica Acta Biomaterialia Odontologica Scandinavica, Vol 4, Iss 1, Pp 56-62 (2018) |
| ISSN: | 2333-7931 |
| Popis: | BPA has been reported to leach from some resin based dental restorative materials and materials used for orthodontic treatment. To confirm and update previous findings, especially in light of the new temporary lower threshold value for tolerable daily BPA intake, we have investigated the leaching of BPA from 4 composite filling materials, 3 sealants and 2 orthodontic bonding materials. The materials were either uncured and dissolved in methanol or cured. The cured materials were kept in deionized water for 24 hours or 2 weeks. Samples were subsequently analyzed by ultra-performance liquid chromatography coupled to mass spectrometry (UPLC-MS-MS). The composite filling material Tetric EvoFlow® and the fissure sealant DELTON® showed significantly higher levels of BPA leaching compared to control samples for all test conditions (uncured, 24 h leaching and 2 weeks leaching). There were no significant differences in amount of leached BPA for any of the tested materials after 24 hours compared to 2 weeks. These results show that BPA is still released from some dental materials despite the general concern about potential adverse effects of BPA. However, the amounts of BPA were relatively low and most likely represent a very small contribution to the total BPA exposure. |
| Databáze: | OpenAIRE |
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