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Comparative Finite Element Analysis of Short Implants with Different Treatment Approaches in the Atrophic Mandible

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dc.contributor.authorDOĞANAY, Özge
dc.contributor.authorKILIÇ, Erdem
dc.contributor.institutionauthorDOĞANAY, ÖZGE
dc.contributor.institutionauthorKILIÇ, ERDEM
dc.date.accessioned2020-09-01T21:00:05Z
dc.date.available2020-09-01T21:00:05Z
dc.date.issued2020-07-01T00:00:00Z
dc.description.abstractPurpose: This three-dimensional finite element analysis study aimed to compare the stresses transmitted to short, tilted, and vertical implants used in different configurations and to the surrounding peri-implant bone in the atrophic mandible. Materials and Methods: A three-dimensional model of an atrophic mandible was made using customized computer software. Four models including short, tilted, and vertical implants were constructed with and without cantilever extension. Four or six implants in different configurations were placed into the models and mounted with the same fixed prosthesis. An oblique force of 200 N was bilaterally applied to the most distal part of the fixed denture. Von Mises stress values on implants and minimum and maximum principal stress values transmitted to peri-implant bone were analyzed. Results: The highest stress values recorded in the tilted implants (von Mises: 129 MPa), in the peri-implant bone around the tilted implants (minimum principal stress: -40 MPa), and overall stress values were found to be higher in the model including tilted implants with cantilever extensions. Distally placed short implants, with consequent elimination of the cantilevers, resulted in decreased stress values for all of the treatment variabilities of an atrophic mandible. Von Mises stress values were found as 129 MPa in tilted (model I), 48 MPa in short (model 11), 47 MPa in short (model III), and 57 MPa in vertical (model IV) at the most distal implant location. Lower compressive stress values were noted in the bone around straight and short implants compared with the tilted implants in all models (model I, tilted: -40 MPa; model II, short: -34 MPa; model III, short: -33 MPa; model IV, vertical: -25 MPa). Conclusion: Distally placed short implants contributed to the reduction of stress values of the implants and the surrounding bone. The combination of two short and four straight implants without cantilevers may be a beneficial design in the rehabilitation of posteriorly atrophic mandibles.
dc.identifier.citationDOĞANAY Ö., KILIÇ E., -Comparative Finite Element Analysis of Short Implants with Different Treatment Approaches in the Atrophic Mandible-, INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS, cilt.35, 2020
dc.identifier.doi10.11607/jomi.8122
dc.identifier.scopus85088880884
dc.identifier.urihttp://hdl.handle.net/20.500.12645/18529
dc.identifier.wosWOS:000555952800002
dc.language.isoen
dc.titleComparative Finite Element Analysis of Short Implants with Different Treatment Approaches in the Atrophic Mandible
dc.typeArticle
dspace.entity.typePublication
local.avesis.id631583e3-0d2d-4a91-a181-e59e34a3d25f
local.publication.isinternational1
relation.isAuthorOfPublication3c74c34c-f271-44af-bfd9-83fdd332db5f
relation.isAuthorOfPublication960911c0-f159-46fb-acf1-866dc1b0b842
relation.isAuthorOfPublication.latestForDiscovery3c74c34c-f271-44af-bfd9-83fdd332db5f
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