Release Of Monomers From Dental Composite Materials - An Invitro Study: Evaluation of monomers BisGMA and TEGDMA from dental composites using HPLC okumak kayıt olmadan

Release Of Monomers From Dental Composite Materials - An Invitro Study: Evaluation of monomers BisGMA and TEGDMA from dental composites using HPLC

Diş Hekimliği

Resin composites have been used as an alternative to amalgam, ceramic and gold restorations. According to various studies the amount of monomer conversion to polymer is between 43-73%.These monomers have shown wide variety of adverse biological reactions.In this study release of BisGMA and TEGDMA monomers from two flowable dental composite materials, Tetric N-flow and Esthet X-flow were assessed. Three groups (n=10) of each material were fabricated, one for each polymerization time of: 20s, 30s, and 40s. The samples were stored immediately in the storage medium of 2ml of absolute alcohol at room temperature which was renewed after 24 hours and was stored for 7 more days. Ethanol samples were measured using HPLC Unit to know the amount of monomers released. Regardless of polymerization time, the material or storage time, a higher amount of BisGMA was released compared to TEGDMA. The release of monomers did not reduced after 24 hours and 7 days after polymerization. The 40s that are usually used for the polymerization of resin composites seems insufficient in order to prevent higher release of monomers.

---

pdf kindle epub doc

---

---

Kolektif 1 Haziran 2018 Ankara Nobel Tıp Kitabevleri 10.8 x 1.27 x 17.78 cm 17 x 2 x 24 cm 2020 1 Ocak 2019 13 Ocak 2021 15,3 x 22,9 cm 15 x 0,3 x 22 cm 15 x 0,6 x 22 cm Cakes n Candles 11.1 x 0.6 x 18.1 cm F. A. Davis 14 Şubat 2020 Health Formation Lovely Hearts Publishing 15 Kasım 2019

---

okumak okumak kayıt olmadan