Добро пожаловать в клуб

Показать / Спрятать  Домой  Новости Статьи Файлы Форум Web ссылки F.A.Q. Логобург    Показать / Спрятать

       
Поиск   
Главное меню
ДомойНовостиСтатьиПостановка звуковФайлыКнижный мирФорумСловарьРассылкаКаталог ссылокРейтинг пользователейЧаВо(FAQ)КонкурсWeb магазинКарта сайта

Поздравляем!
Поздравляем нового Логобуржца искра со вступлением в клуб!

Реклама

КНИЖНЫЙ МИР

Release Of Monomers From Dental Composite Materials - An Invitro Study   Nagesh S. C.,Mithra N. Hegde and Ganesh T. Bhat

Release Of Monomers From Dental Composite Materials - An Invitro Study

92 страниц. 2012 год.
LAP Lambert Academic Publishing
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...
 
- Генерация страницы: 0.04 секунд -