The push-out bond strength of BIOfactor mineral trioxide aggregate, a novel root repair material

Abstract

Objectives The aim of this in vitro study was to evaluate the push-out bond strength of a novel calcium silicate-based root repair material-BIOfactor MTA to root canal dentin in comparison with white MTA-Angelus (Angelus) and Biodentine (Septodont). Materials and Methods The coronal parts of 12 central incisors were removed and the roots were embedded in acrylic resin blocks. Midroot dentin of each sample was horizontally sectioned into 1.1 mm slices and 3 slices were obtained from each root. Three canal-like standardized holes having 1 mm in diameter were created parallel to the root canal on each dentin slice with a diamond bur. The holes were filled with MTA-Angelus, Biodentine, or BIOfactor MTA. Wet gauze was placed over the specimens and samples were stored in an incubator at 37°C for 7 days to allow complete setting. Then samples were subjected to the push-out test method using a universal test machine with the loading speed of 1 mm/min. Data was statistically analyzed using Friedman test and post hoc Wilcoxon signed rank test with Bonferroni correction. Results There were no significant differences among the push-out bond strength values of MTA-Angelus, Biodentine, and BIOfactor MTA ( p > 0.017). Most of the specimens exhibited cohesive failure in all groups, with the highest rate found in Biodentine group. Conclusions Based on the results of this study, MTA-Angelus, Biodentine, and BIOfactor MTA showed similar resistances to the push-out testing.

Morphological and Chemical Analysis of Different Types of Calcium Silicate-Based Cements

“…Interestingly, endosequence materials produced tag-like structures inside the cement itself, which were better than the other tested materials in this study. The tag-like structures could be an indicator of a high calcium ion release that contributes to high dislodgement resistance and provides better micromechanical adhesion [ 37 ]. In an in vitro study conducted to evaluate the bioactivity and physicochemical properties of various CSCs (MM-MTA, Biodentine, and ERRM putty), ERRM putty showed the highest rate of Ca 2+ release [ 38 ], which could be related to the time required for the final setting of this material, which appeared after almost 200 min in a humid environment during the first 24 h [ 39 ].…”

BIOfactor MTA’nın Radyoopasitesinin Dijital Radyografi ile Değerlendirilmesi

“…BIOfactor MTA'nın tozu, trikalsiyum ve dikalsiyum silikat, trikalsiyum alüminat ve yiterbiyum oksitten oluşurken likit kısmı, % 0.5-3 suda çözünür karboksilatlı polimer ve demineralize su içermektedir. 40 Bu yeni materyalin radyoopasite özelliklerine ilişkin henüz bir çalışma yapılmamıştır.…”

“…Diğer kalsiyum silikat esaslı materyallerden farklı olarak BIOfactor MTA, radyoopaklık veren ajan olarak yiterbiyum oksit içermektedir. 40 Costa ve ark. 41 yaptıkları çalışmada yiterbiyum oksitin, bizmut oksite göre daha yüksek hücre canlılığı gösterdiğini ve biyouyumlu olduğunu bildirmişlerdir.…”

Effect of Different Adhesive Strategies on the Microshear Bond Strength of Calcium-Silicate-Based Materials

“…Information about the manufacturer and chemical composition of the tested materials is presented in Table 1. [19][20][21][22][23][24][25][26] Study groups are listed in Figure 1 in relation to the materials.…”