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

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 pros...

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Bibliographic Details
Published in:Computer methods in biomechanics and biomedical engineering 2021-03, Vol.24 (4), p.358-374
Main Authors: Benevides, Fernanda, Cimões, Renata, Vajgel, André, Wilmersdorf, Ramiro Brito, Vajgel, Bruna de Carvalho Farias
Format: Article
Language:English
Subjects:
Biomechanics
Dental implants
Finite element analysis
Finite element method
implant-supported fixed prosthesis
length
Mandible
Mathematical models
Prostheses
Prosthetics
Surgical implants
Transplants & implants
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Summary: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.
ISSN:1025-5842
1476-8259
DOI:10.1080/10255842.2020.1817406