Original Article

Stress distribution in delayed replanted teeth splinted with different orthodontic wires: a three-dimensional finite element analysis

Corresponding Author

Fernando Isquierdo de Souza

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

Correspondence to: Fernando Isquierdo de Souza, DDS, MSc Student, Departamento de Materiais Odontológicos e Prótese, Faculdade de Odontologia de Araçatuba, Unesp, Univ Estadual Paulista, Rua José Bonifácio, 1193 CEP 16015-050, Araçatuba, SP, Brazil

Tel.: +551836363290

Fax: +551836363245

e-mail: [email protected]

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Wilson Roberto Poi,

Wilson Roberto Poi

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Vanessa Ferreira da Silva,

Vanessa Ferreira da Silva

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Ana Paula Martini,

Ana Paula Martini

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Regis Alexandre da Cunha Melo,

Regis Alexandre da Cunha Melo

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Sonia Regina Panzarini,

Sonia Regina Panzarini

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Eduardo Passos Rocha,

Eduardo Passos Rocha

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Fernando Isquierdo de Souza,

Corresponding Author

Fernando Isquierdo de Souza

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

Tel.: +551836363290

Fax: +551836363245

e-mail: [email protected]

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Wilson Roberto Poi,

Wilson Roberto Poi

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Vanessa Ferreira da Silva,

Vanessa Ferreira da Silva

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Ana Paula Martini,

Ana Paula Martini

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Regis Alexandre da Cunha Melo,

Regis Alexandre da Cunha Melo

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Sonia Regina Panzarini,

Sonia Regina Panzarini

Department of Surgery and Integrated Clinical, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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Eduardo Passos Rocha,

Eduardo Passos Rocha

Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Unesp – Univ Estadual Paulista, Araçatuba, Brazil

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First published: 21 January 2015

https://doi.org/10.1111/edt.12159

Citations: 10

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Abstract

Aim

The aim was to evaluate the biomechanical behavior of the supporting bony structures of replanted teeth and the periodontal ligament (PDL) of adjacent teeth when orthodontic wires with different mechanical properties are applied, with three-dimensional finite element analysis.

Materials and methods

Based on tomographic and microtomographic data, a three-dimensional model of the anterior maxilla with the corresponding teeth (tooth 13–tooth 23) was generated to simulate avulsion and replantation of the tooth 21. The teeth were splinted with orthodontic wire (Ø 0.8 mm) and composite resin. The elastic modulus of the three orthodontic wires used, that is, steel wire (FA), titanium–molybdenum wire (FTM), and nitinol wire (FN) were 200 GPa, 84 GPa, and 52 GPa, respectively. An oblique load (100 N) was applied at an angle of 45° on the incisal edge of the replanted tooth and was analyzed using Ansys Workbench software. The maximum (σ_max) and minimum (σ_min) principal stresses generated in the PDL, cortical and alveolar bones, and the modified von Mises (σ_vM) values for the orthodontic wires were obtained.

Results

With regard to the cortical bone and PDL, the highest σ_min and σ_max values for FTM, FN, and FA were checked. With regard to the alveolar bone, σ_max and σ_min values were highest for FA, followed by FTM and FN. The σ_vM values of the orthodontic wires followed the order of rigidity of the alloys, that is, FA > FTM > FN.

Conclusion

The biomechanical behavior of the analyzed structures with regard to all the three patterns of flexibility was similar.

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June 2015

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Stress distribution in delayed replanted teeth splinted with different orthodontic wires: a three-dimensional finite element analysis

Abstract

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Materials and methods

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Conclusion

References

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Stress distribution in delayed replanted teeth splinted with different orthodontic wires: a three-dimensional finite element analysis

Abstract

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Materials and methods

Results

Conclusion

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Citing Literature

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