A comparative study of stress distribution between glass fiber post and cast post in an endodontically treated central incisor – A finite element analysis

Vignesh, N. J.; Lakshmi, S; Annapoorani, H; Gnanam, Padmashini

doi:10.4103/jid.jid_35_19

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Algunas investigaciones afirman que los postes de Ni-Cr producen altas tensiones en el poste-muñón, pero transmiten menor carga tensional a la dentina, lo cual brinda baja probabilidad de fractura en la misma [8,12]. Otros investigadores al respecto han concluido que los postes reforzados con fibra de vidrio generan una mayor tensión en la dentina en comparación a los postes reforzados con otros materiales.…”

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Tensional study in incisor teeth restored with different post bite material and different masticatory forces

Vega Anticona,

Quevedo Rodríguez,

Nuñuvero Haro

et al. 2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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The objective of this investigation was to determine and compare the values of maximum equivalent stresses according to the von-Mises(vM) criteria of a post-die restoration in an incisor tooth, using the mechanical properties of two types of materials (fiberglass , NiCr alloy) and 4 chew type force values (100, 150, 200 and 250) N; the stress calculation carried out was of a static type, this was carried out using the ANSYS software. In the case of the crown, the data on the properties of lithium disilicate (IPS e.max CAD) were used; in addition to this, the properties of the materials corresponding to dentin and periodontium were also used. The first stage of the process The simulation consisted in the acquisition of the 3D model of an incisor tooth, through a scanning process to later reduce the number of elements and perform the smoothing, the Meshmixer software was used, the final file was exported to ANSYS, where all the parts of the tooth considering the recommendations of an endodontic process; for the simulation, the chewing forces were applied in an area of 2 mm2, taking into account an angle of 45° with respect to the longitudinal axis of the tooth; in addition, the stress results of the restored teeth with the incisor tooth without any type of restoration From the results of the numerical evaluation we can conclude that the post-type restoration stump n that uses fiberglass would have greater chances of success, since the values of equivalent stress are lower compared to when the NiCr alloy is used; this is 28.8MPa and 141.53, respectively for the force of 250 N; however, the stress state of the material used as cement (adhesive), in the case of the fiberglass stump post is higher compared to the case that uses the NiCr alloy.

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Section: Do Not Removeunclassified

Tensional study in incisor teeth restored with different post bite material and different masticatory forces

Vega Anticona,

Quevedo Rodríguez,

Nuñuvero Haro

et al. 2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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High Performance Composites Based on Highly Filled Glass Fiber-Reinforced Polybenzoxazine for Post Application

et al. 2022

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Glass fiber post based on the new polymeric material, polybenzoxazine, is prepared and the effects of glass fiber contents on mechanical and thermal properties are evaluated. The mechanical response to externally applied loads of tooth restored with glass fiber-reinforced polybenzoxazine composite posts is also simulated by finite element analysis of a tridimensional model and compared with the response to that of a natural tooth. The reinforcing of glass fiber can help improve the mechanical and thermal properties of the polybenzoxazine influenced by the interfacial adhesion between the glass fiber and polybenzoxazine matrix, except for the relatively high mechanical property of the glass fiber. The mechanical data, i.e., elastic modulus under flexure load or flexural modulus by three-point bending test of the glass fiber-reinforced polybenzoxazine composites are agreed with the elastic modulus of dentin and then used in the finite element model. The restoration using the glass fiber-reinforced polybenzoxazine composite post provided the maximum von Mises equivalent stress at the cervical third area of the endodontically treated tooth model as similarly observed in the natural tooth. In addition, the maximum von Mises equivalent stress of the tooth restored with the glass fiber-reinforced polybenzoxazine composite post is also quietly like that of the natural tooth. The finding of this work provided the essential properties of the glass fiber-reinforced polybenzoxazine composite for dental restorations and appliances.

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A comparative study of stress distribution between glass fiber post and cast post in an endodontically treated central incisor – A finite element analysis

Cited by 2 publications

References 3 publications

Tensional study in incisor teeth restored with different post bite material and different masticatory forces

Tensional study in incisor teeth restored with different post bite material and different masticatory forces

High Performance Composites Based on Highly Filled Glass Fiber-Reinforced Polybenzoxazine for Post Application

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