The viability of current obturating systems as Replacement Endodontic Monoblocks – A 3 Dimensional Finite Element Analysis

Biomechanical Performance of Mandibular Molars with Deep Mesio-Occlusal-Distal Cavities Rehabilitated with Horizontal Posts: A 3D Finite Element Analysis

“…Stappert et al [27] drew an inference that only functional cusp coverage could improve fracture resistance as compared to full coverage by ceramics. Thus, there is no consensus on the fracture resistance of restored teeth [8,[17][18][19][20][21][22][23][24]. In the present study, it was observed that there was an exponential increase in deformation and overall stress pattern in a MOD cavity when compared to a sound intact tooth.…”

“…The FEA is one such technique that can analyze the stress distribution of innovation before it is launched commercially or integrated into our day-to-day practice. FEA is a useful computer-based tool that can resolve differential equations by a powerful numeritechnique [9,13,[16][17][18][19][20][21][22][23].…”

“…Thus, when stress has been applied, the deformation that occurs or the concentration of stress under loading conditions is analyzed and the resultant variables are calculated [16][17][18][19][20][21][22]. Since the dental tissues are of different constituents, of varying thickness, shape, and resiliency and more often than not nonhomogenous or symmetrical, thus they have to be simulated and replicated in three dimensions for a validated analysis [16][17][18][19][20][21]. Hence, in this study, based on evidence-based data, the finite model of an intact tooth was generated.…”

“…A three-dimensional element model of the permanent mandibular first molar along with attachment apparatus was built and designed according to the standard anatomy as described in Wheeler's atlas [15] and based on the physical and material properties obtained from published data (Table 1) [14][15][16][17][18][19]. The tooth model which was computer-simulated based on the material properties was made up of small elements which are joined at points called nodes.…”

“…On the other hand, principal stress represents the maximum and minimum of normal stresses on a principal plane at a condition of zero shear stress acting on a body. While the maximum principal stress theory more accurately predicts failure, especially in brittle materials, but is often not always accurate for ductile materials [14][15][16][17][18]. Hence in this study, von Mises stresses were taken into consideration.…”