Journals / Ankara Üniversitesi Diş Hekimliği Fakültesi Dergisi / 2004 / Cilt: 31 - Sayı: 1

Evaluation of the BisGMA+TEGDMA content in composite resins with spectroscopic technique

Kompozit rezinlerdeki BisGMA+TEGDMA miktarının spektroskopik yöntem ile değerlendirilmesi

Pages
9–17
Publication Date
2022-10-10
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

As a conclusion the test specimens prepared from Charisma had more residual monomer content than the others.

📌 3 Key Takeaways

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Objective & Hypothesis:The purpose of the present investigation was to measure the residual monomer (BisGMA+ TEGDMA) contents of a range of composite restorative materials (Charisma, Brilliant; Herculite, Valux Plus, P-30, P50) and to determine the percentage of monomer eluted into methanol by using UV-VIS (Ultraviolet-Visible Spectrophotometer) technique.
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Key Findings & Data:Group 1 (Control Group): A small portion of the uncured composite resin paste from each composite restorative materials was left in methanol for 7 days, Group 2: Specimen rods, 4 mm in diameter and 2 mm high were prepared by the use of teflon mould.
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Conclusion & Impact:As a conclusion the test specimens prepared from Charisma had more residual monomer content than the others.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The purpose of the present investigation was to measure the residual monomer (BisGMA+ TEGDMA) contents of a range of composite restorative materials (Charisma, Brilliant; Herculite, Valux Plus, P-30, P50) and to determine the percentage of monomer eluted into methanol by using UV-VIS (Ultraviolet-Visible Spectrophotometer) technique. Group 1 (Control Group): A small portion of the uncured composite resin paste from each composite restorative materials was left in methanol for 7 days, Group 2: Specimen rods, 4 mm in diameter and 2 mm high were prepared by the use of teflon mould. The mould was first filled with the composite material, the upper surface of the material was covered with polyester strip matrix and the material was photo-cured 40 s by means of a visible light sources. Each specimen was then ground by use of a pestle and a mortar,' and the resultant powder was immediately dipped in sealed methanol for 7 days for the measurement of residual monomer (BisGMA+TEGDMA) left in the composite. Group 3: Differing from the specimens in the second group, visible light cured composite speci¬mens were post cured in the heat-light oven tem¬pered at 110 °C for 7 minutes. For. spectroscopic concentrations of monomers (BisGMA+TEGDMA) in the aqueous solutions were measured by the help of ultra-violet absorption at 278 nm in VV-VIS. Tukey HSD test were * used for statistical comparison resin composite whereas^ One-way Anova test was used for comparison of three different groups of each resin composite. As a conclusion the test specimens prepared from Charisma had more residual monomer content than the others.

Özet

Bu çalışmanın amacı, Charisma, Brilliant, Herculite, Valux Plus, P-30, P-50 gibi kompozit restoratif materyaller içinde kalan artık monomer (BisGMA+TEGDMA) miktarlarını hesaplamak ve UV-VIS (Ultraviolet-Visible Spectrophotometer) tekniğini kullanarak metanol içerisine geçen monomer yüzdelerini saptamaktır. l.Grup (Kontrol Grubu): Her kompozit için polimerize olmamış kompozit rezin patlarının bir kısmı alınarak metanol içerisinde 7 gün bekletildi. 2.Grup: 4 mm çapında 2 mm yüksekliğinde teflon kalıplar kullanarak örnekler hazırlandı ve materyal görünür ışık kaynağı ile 40 s polimerize edildi. Her örnek havan içerisinde ezildikten sonra elde edilen toz hemen ağzı sıkıca kapatılarak metanol içersinde 7 gün süreyle bekletildi ve kompozit içersindeki artık monomer (BisGMA+ TEGDMA) miktarları hesaplandı. 3.Grup: İkinci gruptan farklı olarak görünür ışık ile polimerize edilen örnekler ısı+ışık fırınında 110 °C de 7 dakika bekletildi. Spekteoskopik analiz için sıvı solüsyonlardaki (BisGMA+TEGDMA) konsantrasyonları UV-VIS cihazında 278 nm'de ultraviole absorbansı ile ölçüldü. Kompozit rezinlerin istatistiksel olarak karşılaştırılmasında Tukey-HSD testi ve her kompozit rezinin 3 farklı grubunun birbirleriyle karşılaştırmasında ise One-way Anova testi kullanılmıştır Araştırma sonucunda Charisma'dan hazırlanan test örneklerinde diğer kompozitlerde oldu¬ğundan daha fazla artık monomer (BisGMA+ TEGDMA) kaldığı tespit edildi.

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Cite This Article

ULUSOY, N., NALÇACI, A. (2022). Evaluation of the BisGMA+TEGDMA content in composite resins with spectroscopic technique. Ankara Üniversitesi Diş Hekimliği Fakültesi Dergisi, Cilt: 31 - Sayı: 1, 9–17. https://ajindex.com/articles/442223

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