Effect of the nature and the number of nets on the behavior of dental structures
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Aim The purpose of this work is to develop a new three-dimensional model of a dental prosthesis.
Methods A dental prosthesis is subjected to one of the three load of mastication (coronoapical, disto-mesial and lingual-oral), applied on the occlusal surface of the crown. The simulation is determined numerically in 3D by the finite element method using the Abaqus calculation code.
Results This numerical analysis allowed us to show the effect of the number of threads and the nature of the thread on the variation of the equivalent stress in the close vicinity of the bone/implant interface. These interfacial constraints are evaluated on the outside and at the bottom of the net. The triangular thread creates more intense stresses than the rectangular and trapezoidal threads on the outside because it has a sharp angle to the outer part.
Conclusion It is important to know the effects of these factors to ensure, on the one hand, the stability and immobility of the dental implant in the alveolar bone and, on the other hand, the mechanical strength of the cortical bone.
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