2002
DOI: 10.1002/1616-5195(200211)2:8<365::aid-mabi365>3.0.co;2-l
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In-Vitro Stability, Metabolism, and Transport of Dental Monomers Made from Bisphenol A and Bisphenol F

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Cited by 8 publications
(3 citation statements)
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“…6 Bisphenol A diglycidyl ether (BADGE) is an aromatic dioxirane used commercially (EPONe 825); was found to undergo oxirane ring opening by epoxide hydrolase with consequent formation of diols. 7 Another dioxirane, bisphenol F diglycidyl ether was hydrolyzed in 1 M HCl to a tetrahydroxy metabolite, 8 showing oxirane instability in the acid pH of the stomach.…”
Section: Introductionmentioning
confidence: 40%
“…6 Bisphenol A diglycidyl ether (BADGE) is an aromatic dioxirane used commercially (EPONe 825); was found to undergo oxirane ring opening by epoxide hydrolase with consequent formation of diols. 7 Another dioxirane, bisphenol F diglycidyl ether was hydrolyzed in 1 M HCl to a tetrahydroxy metabolite, 8 showing oxirane instability in the acid pH of the stomach.…”
Section: Introductionmentioning
confidence: 40%
“…However, the addition of diluents such as TEGDMA can increase the degradation of the material overtime, as well as the cytotoxic potential of the material, because the unpolymerized molecules of this monomer diluent undergo saponification by enzymatic hydrolysis that breaks down the molecule of TEGDMA into two molecules of methacrylic acid. Moreover, due to its high lipophilicity, these molecules can penetrate rapidly into the membrane of human cells, and alter cells function (5,6). However, one of the major reasons for hydrolytic degradation of composites containing high amount of TEGDMA is that the TEDGMA molecule has two oxygen atoms in the central molecule backbone and each oxygen atom has 2 free electrons in their valence shell, which makes according to the Fick's first law the TEDGMA monomer more susceptible to water diffusion than other kinds of monomers.…”
Section: Introductionmentioning
confidence: 99%
“…Σν φξην ηεο εκεξήζηαο έθζεζεο ηνπ αλζξψπνπ ζε ΒΡΑ έρεη θαζνξηζηεί <50 κg/kg ζψκαηνο (ΖΠΑ) αιιά θαη επίπεδα ησλ 10 κg/kg ζψκαηνο αλά εκέξα έρνπλ νξκνληθέο αιιαγέο ζηνλ νξγαληζκφ[42].Ζ θαηαλφεζε ησλ ηνμηθψλ επηδξάζεσλ ηεο BPA, πνπ έρεη απαγνξεπηεί σο ζπζηαηηθφ ζηα παηδηθά κπηκπεξφ απφ ην 2011, αθνξά κειέηεο πνπ βαζίδνληαη θπξίσο ζε πεηξακαηφδσα.Αλ θαη ππάξρεη γεληθή ζπκθσλία ζρεηηθά κε ηελ ηθαλφηεηα ηεο BPA λα πξνθαιεί δπζκελείο επηπηψζεηο ζε απηά ηα δψα φηαλ ρνξεγείηαη ζε πςειέο δφζεηο, ε ηθαλφηεηά ηεο λα επηθέξεη παξελέξγεηεο θαη ζε ρακειέο δφζεηο απνηειεί αληηθείκελν δηαθσλίαο. Ζ δηαθσλία απηή θπξίσο επηθεληξψλεηαη (α) ζε ελδερφκελεο δπζκελείο επηδξάζεηο θαηά ηελ αλαπαξαγσγή θαη ηελ αλάπηπμε ζε ρακειέο δφζεηο ρνξήγεζεο νπζίαο BPA θαη (β) γηα ην αλ ή φρη ε BPA είλαη ηθαλή λα δηαηαξάζζεη ην ελδνθξηλέο ζχζηεκα ζε ηέηνηεο δφζεηο[43]. Ζ ίδηα ε ΒΡΑ σο ρεκηθή έλσζε παξνπζηάδεη ηδηφηεηεο παξφκνηεο ησλ νξκνλψλ θαη έηζη ε έθζεζε ζε ρακειά επίπεδα πξνθαιεί αιιαγέο ζηε ζπκπεξηθνξά θαη ζηε ιεηηνπξγία ησλ γνληδίσλ (γνλνηνμηθφηεηα) καθξνπξφζεζκα.…”
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