Stress evaluation of different implant lengths on atrophic edentulous mandibles with fixed full-arch implant-supported prosthesis: a finite element analysis

Fernanda Benevides, Renata Cimões, André Vajgel, Ramiro Brito Wilmersdorf and Bruna de Carvalho Farias Vajgel

Computer Methods in Biomechanics and Biomedical Engineering, 2020, vol. 24, issue 4, 358-374

Abstract: Finite element analysis was used to compare the effect of different implant lengths on atrophic mandible with full-arch fixed prostheses. Four models were constructed with different implant lengths: 4, 6, 8 and 10 mm. A 100-N occlusal load was applied. The stress at the bone level, implant, and prosthetic components were obtained. Similar behavior was observed for all groups, except for 4 mm, which showed more discrepant values ​​for all prosthetic components. Although longer implants presented better biomechanical behavior, the 4 mm implant seems to be a viable alternative for severely atrophic mandibles, however, further studies need to be carried out.

Date: 2020
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DOI: 10.1080/10255842.2020.1817406

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