Milanovic Ivana, Miletic Vesna, Dzeletovic Bojan, Antonijevic Djordje, Savic Stankovic Tatjana, Pavlovic Danilo, Despotovic Ana, Petrovic Violeta
DentalNet Research Group, School of Dental Medicine, University of Belgrade, Rankeova 4, 11000 Belgrade, Serbia.
Faculty of Medicine and Health, Sydney Dental School, University of Sydney, Surry Hills, NSW 2010, Australia.
J Funct Biomater. 2025 Apr 3;16(4):131. doi: 10.3390/jfb16040131.
The calcium silicate-based sealers currently available on the market have different compositions and formulations, which is why their physical and chemical properties may vary. (1) The aim of the study was to measure the physico-chemical properties of calcium silicate-based sealers and their push-out bond strength to root dentine, comparing two push-out testing protocols. (2) Standardized specimens of EndoSequence BC, BioRoot RCS, MTA Fillapex, and AH Plus (control) were subjected to pH measurements over 28 days. Radiopacity was measured using a CCD sensor, and flexural strength was assessed using a three-point bending setup. Push-out bond strength was measured in coronal, middle, and apical sections of 40 single-root teeth (conventional method), and cylindrical cavities were prepared for all sealers on the same root dentine disks in 11 third molars (disk method). (3) EndoSequence BC exhibited a higher pH than MTA Fillapex and the highest radiopacity ( < 0.05). The highest flexural and push-out bond strengths were found for AH Plus. The push-out bond strength of EndoSequence BC and BioRoot RCS was higher than MTA Fillapex ( < 0.05). The conventional and disk methods exhibited similar push-out bond strength results, but the data were more homogeneously distributed in the disk method. (4) All calcium silicate-based sealers exhibited a higher pH than AH Plus. MTA Fillapex did not meet the ISO standard. Calcium silicate-based sealers showed weaker performance in terms of physical properties compared to AH Plus.
目前市场上现有的硅酸钙类封闭剂具有不同的成分和配方，这就是它们的物理和化学性质可能存在差异的原因。（1）本研究的目的是测量硅酸钙类封闭剂的物理化学性质及其与牙根牙本质的推出粘结强度，比较两种推出测试方案。（2）对EndoSequence BC、BioRoot RCS、MTA Fillapex和AH Plus（对照）的标准化样本进行了28天的pH值测量。使用电荷耦合器件（CCD）传感器测量射线不透性，并使用三点弯曲装置评估弯曲强度。在40颗单根牙的冠部、中部和根尖部测量推出粘结强度（传统方法），并在11颗第三磨牙的同一牙根牙本质盘上为所有封闭剂制备圆柱形洞腔（盘法）。（3）EndoSequence BC的pH值高于MTA Fillapex，且射线不透性最高（P<0.05）。AH Plus的弯曲强度和推出粘结强度最高。EndoSequence BC和BioRoot RCS的推出粘结强度高于MTA Fillapex（P<0.05）。传统方法和盘法的推出粘结强度结果相似，但盘法的数据分布更均匀。（4）所有硅酸钙类封闭剂的pH值均高于AH Plus。MTA Fillapex不符合ISO标准。与AH Plus相比，硅酸钙类封闭剂在物理性能方面表现较弱。
