Evaluation of the Effect of Rotary Systems on Stresses in a New Testing Model Using a 3-Dimensional Printed Simulated Resin Root with an Oval-shaped Canal: A Finite Element Analysis Study

Influence of nickel‐titanium rotary systems with varying tapers on the biomechanical behaviour of maxillary first premolars under occlusal forces: a finite element analysis study

“…Greater loss of dentine in the cervical region may be the reason for comparatively higher stresses in ProTaper model (Mahran & AboEl-Fotouh 2008). Similar to the present results, a recent FEA study demonstrated that stresses were greater in a ProTaper Universal prepared model under oblique loading (Eken et al 2016). The authors stated that substantial coronal structure loss may be a disadvantage under occlusal forces.…”

“…The widely used Von Misses stresses were not applied because they represent a combination of the absolute values squared of all stresses (Eken et al . ).…”

“…Similar to the present results, a recent FEA study demonstrated that stresses were greater in a ProTaper Universal prepared model under oblique loading (Eken et al . ). The authors stated that substantial coronal structure loss may be a disadvantage under occlusal forces.…”

“…In the present study, tensile stresses (Pmax) were used as the predictors of fracture susceptibility and pattern because the stresses that cause predisposition to fracture are tensile in nature (Lertchirakarn et al 2003b, Sathorn et al 2005. The widely used Von Misses stresses were not applied because they represent a combination of the absolute values squared of all stresses (Eken et al 2016).…”

Endodontic applications of 3D printing

“…) and stress values (Eken et al . ) of different rotary file systems, centring ability of access preparations (Yahata et al . ) and different obturation techniques for C‐shaped canals (Gok et al .…”