Kurum Dışı Yazarlar Akbulut, Makbule Bil ...
169508

Interfacial characteristics of BIOfactor MTA and Biodentine with dentin

Şimşek, Emine

The objective of this study was to characterize the interface between dentin and MTA-Angelus (Angelus, Londrina, Brasil), Biodentine (Septodont, France) and BIOfactor MTA (Imicryl, Konya, Turkey) using scanning electron microscopy (SEM), energy disperse X-ray spectroscopy (SEM-EDS) and confocal laser scanning microscopy (CLSM). Fifteen dentin segments were obtained from previously extracted singlerooted human teeth. Canal lumens were instrumented with diamond burs and then randomly filled with MTA-Angelus, Biodentine or BIOfactor MTA and placed in distilled water or Hanks' Balanced Salt Solution (HBSS) for 28-days. The samples were examined with SEM and the thickness of the interfacial layer measured. SEM-EDS analysis was performed to determine principal elemental composition...

169505

Influence of Incubation Duration on Bond Strength and Microhardness of Calcium Silicate-Based Materials

Şimşek, Emine

The objective of this study was to investigate the effect of different incubation periods on the push-out bond strength and microhardness of calcium-silicate- based materials: MTA-Angelus, Biodentine and BIOfactor MTA. A total of 100 dentine discs were used for the push-out test. Three cavities were prepared on each dentine disc. Each cavity on the same disc was filled with MTA-Angelus, Biodentine or BIOfactor MTA. Half of the dentine samples were incubated at 37°C for 1 day, and the other half for 28 days (n = 50). Push-out testing was then performed. For the microhardness test, material discs were prepared by mixing the materials and placing them into Teflon moulds (n = 26). The samples were incubated at 37°C for either 1 day or 28 days (n = 13). Vickers microhardness testin...

169518

Güncel Kalsiyum Silikat Esaslı Kök Tamir Materyallerinin Fizikokimyasal ve Biyolojik Özellikleri

Şimşek, Emine

Son yıllarda endodonti alanında çok sayıda olumlu özelliği nedeniyle kalsiyum silikat esaslı materyaller kullanılmaya başlanmıştır. Bağ dokusu ile direkt teması olan materyallerin kullanımı söz konusu olduğunda materyalin biyouyumluluğu o maddede aranan en önemli özelliktir. Ayrıca kullanılan ideal tamir materyali toksik olmamalı, nemli ortamda sertleşebilmeli, kandan etkilenmemeli, bakteri ve doku sıvılarına karşı iyi bir tıkama özelliği olmalı, kalsiyum hidroksit salmalı, kemik oluşumunu indüklemeli, antibakteriyel özelliğe sahip olmalı ve yeterli oranda sertliğe sahip olmalıdır. Kalsiyum silikat esaslı materyallerin içeriğinde trikalsiyum silikat, dikalsiyum silikat gibi hidrofilik bileşikler bulunur. Kalsiyum silikat esaslı materyaller; vital pulpa tedavisinde, apeksifikasyo...