To compare the removal of root fillings in extracted teeth using the ProTaper Universal Retreatment system (PTUR) followed by a supplementary preparation with the XP‐Endo Finisher file.
The mesiobuccal root canals of 30 extracted mandibular first molars were instrumented with ProTaper Universal NiTi files up to F2 and filled with one of the following sealers using a single‐cone...
To investigate the effect of several chelating solutions on transforming growth factor (TGF‐β) release from dentine discs and their subsequent impact on cellular behaviour.
Human dentine discs were prepared with a standardized diameter and disinfected using 1.5% NaOCl for 5 min. The dentine discs were then exposed to 17% ethylenediaminetetraacetic acid (EDTA), 1% phytic acid (IP6),...
To compare the effect of furcal perforations of various sizes on the biomechanical response of mandibular first molars with or without periodontal bone loss at the furcal region via three‐dimensional (3D) finite element analysis (FEA).
The 3D geometric basic model was reconstructed from the micro‐computed tomographic images of an extracted mandibular first molar. Five different...
To investigate the proliferation and differentiation potential of human dental pulp stem cells (DPSCs) in a three‐dimensional culture model (TDM) by incorporation of VEGF and BMP‐2.
TDM was established using fibrin gel (fg) as a soft tissue matrix and demineralized dentine disc (dd) as a hard tissue matrix. DPSCs and vascular endothelial growth factor (VEGF) were encapsulated in...
During the lifetime of the Satellite Propulsion System, there are two cases in which water hammer effect occurs in the system: the first one is through the priming phase of the propulsion system, i.e. the opening of the isolation valve; the second one is through the operation of the thrusters, i.e. the sudden closure of the thruster valve following the continuous flow of propellant through valve....
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.