The influence of bone quality on the biomechanical behavior of full-arch implant-supported fixed prostheses.
Identifieur interne : 000319 ( Main/Exploration ); précédent : 000318; suivant : 000320The influence of bone quality on the biomechanical behavior of full-arch implant-supported fixed prostheses.
Auteurs : Leonardo Perez Faverani [Brésil] ; Valentim Adelino Ricardo Barão [Brésil] ; Gabriel Ramalho-Ferreira [Brésil] ; Juliana Aparecida Delben [Brésil] ; Mayara Barbosa Ferreira [Brésil] ; Idelmo Rangel Garcia Júnior [Brésil] ; Wirley Gonçalves Assunção [Brésil]Source :
- Materials science & engineering. C, Materials for biological applications [ 1873-0191 ] ; 2014.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Dental Implants.
- chemistry : Bone and Bones.
- diagnostic imaging : Bone and Bones.
- Elastic Modulus, Finite Element Analysis, Humans, Jaw, Edentulous, Male, Mandible, Middle Aged, Stress, Mechanical, Tomography, X-Ray Computed.
Abstract
We evaluated the influence of bone tissue type on stress distribution in full-arch implant-supported fixed prostheses using a three-dimensional finite element analysis. Stresses in cortical and trabecular bones were also investigated. Edentulous mandible models with four implants inserted into the interforaminal region were constructed from different bone types: type 1 - compact bone; type 2 - compact bone surrounding dense trabecular bone; type 3 - a thin layer of compact bone surrounding trabecular bone; and type 4 - low-quality trabecular bone. The mandible was restored with a full-arch implant-supported fixed prosthesis. A 100-N oblique load was applied to the left lower first molar of the prosthesis. The maximum (σmax) and minimum (σmin) principal stress values were determined. The σmax in the type 4 cortical bone was 22.56% higher than that in the type 1 bone. The σmin values in the cortical bone were similar among all the bone types. For the superstructure, increases of 9.04% in the σmax and 11.74% in the σmin in G4 (type 4 bone) compared with G1 (type 1 bone) were observed. For the implants, the highest stress values were located in G4, and the lowest values were observed in G1. In the trabecular bone, the highest stress was generated in G1 and G2. In conclusion, the more compact bones (types 1 and 2) are the most suitable for supporting full-arch implant-supported fixed prostheses, and poor bone quality may increase the risk of biological and mechanical failure.
DOI: 10.1016/j.msec.2014.01.013
PubMed: 24582236
Affiliations:
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Bonifácio 1193, Araçatuba, São Paulo 16015-050, Brazil.</nlm:affiliation><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Surgery and Integrated Clinic, Aracatuba Dental School, Univ Estadual Paulista (UNESP), José Bonifácio 1193, Araçatuba, São Paulo 16015-050</wicri:regionArea><placeName><settlement type="city">São Paulo</settlement><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Assuncao, Wirley Goncalves" sort="Assuncao, Wirley Goncalves" uniqKey="Assuncao W" first="Wirley Gonçalves" last="Assunção">Wirley Gonçalves Assunção</name><affiliation wicri:level="1"><nlm:affiliation>Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Univ Estadual Paulista (UNESP), José Bonifácio 1193, Araçatuba, São Paulo 16015-050, Brazil.</nlm:affiliation><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Univ Estadual 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xml:lang="fr">Brésil</country><wicri:regionArea>Department of Surgery and Integrated Clinic, Aracatuba Dental School, Univ Estadual Paulista (UNESP), José Bonifácio 1193, Araçatuba, São Paulo 16015-050, Brazil; Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Univ Estadual Paulista (UNESP), José Bonifácio 1193, Araçatuba, São Paulo 16015-050</wicri:regionArea><placeName><settlement type="city">São Paulo</settlement><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Barao, Valentim Adelino Ricardo" sort="Barao, Valentim Adelino Ricardo" uniqKey="Barao V" first="Valentim Adelino Ricardo" last="Barão">Valentim Adelino Ricardo Barão</name><affiliation wicri:level="1"><nlm:affiliation>Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo, 13414-903, Brazil. 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C, Materials for biological applications</title><idno type="eISSN">1873-0191</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bone and Bones (chemistry)</term><term>Bone and Bones (diagnostic imaging)</term><term>Dental Implants</term><term>Elastic Modulus</term><term>Finite Element Analysis</term><term>Humans</term><term>Jaw, Edentulous</term><term>Male</term><term>Mandible</term><term>Middle Aged</term><term>Stress, Mechanical</term><term>Tomography, X-Ray Computed</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte d'âge moyen</term><term>Analyse des éléments finis</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule</term><term>Module d'élasticité</term><term>Mâchoire édentée</term><term>Mâle</term><term>Os et tissu osseux ()</term><term>Os et tissu osseux (imagerie diagnostique)</term><term>Tomodensitométrie</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Bone and Bones</term></keywords><keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en"><term>Bone and Bones</term></keywords><keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr"><term>Os et tissu osseux</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Elastic Modulus</term><term>Finite Element Analysis</term><term>Humans</term><term>Jaw, Edentulous</term><term>Male</term><term>Mandible</term><term>Middle Aged</term><term>Stress, Mechanical</term><term>Tomography, X-Ray Computed</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte d'âge moyen</term><term>Analyse des éléments finis</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule</term><term>Module d'élasticité</term><term>Mâchoire édentée</term><term>Mâle</term><term>Os et tissu osseux</term><term>Tomodensitométrie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We evaluated the influence of bone tissue type on stress distribution in full-arch implant-supported fixed prostheses using a three-dimensional finite element analysis. Stresses in cortical and trabecular bones were also investigated. Edentulous mandible models with four implants inserted into the interforaminal region were constructed from different bone types: type 1 - compact bone; type 2 - compact bone surrounding dense trabecular bone; type 3 - a thin layer of compact bone surrounding trabecular bone; and type 4 - low-quality trabecular bone. The mandible was restored with a full-arch implant-supported fixed prosthesis. A 100-N oblique load was applied to the left lower first molar of the prosthesis. The maximum (σmax) and minimum (σmin) principal stress values were determined. The σmax in the type 4 cortical bone was 22.56% higher than that in the type 1 bone. The σmin values in the cortical bone were similar among all the bone types. For the superstructure, increases of 9.04% in the σmax and 11.74% in the σmin in G4 (type 4 bone) compared with G1 (type 1 bone) were observed. For the implants, the highest stress values were located in G4, and the lowest values were observed in G1. In the trabecular bone, the highest stress was generated in G1 and G2. In conclusion, the more compact bones (types 1 and 2) are the most suitable for supporting full-arch implant-supported fixed prostheses, and poor bone quality may increase the risk of biological and mechanical failure.</div></front></TEI><affiliations><list><country><li>Brésil</li></country><region><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement></list><tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Faverani, Leonardo Perez" sort="Faverani, Leonardo Perez" uniqKey="Faverani L" first="Leonardo Perez" last="Faverani">Leonardo Perez Faverani</name></region><name sortKey="Assuncao, Wirley Goncalves" sort="Assuncao, Wirley Goncalves" uniqKey="Assuncao W" first="Wirley Gonçalves" last="Assunção">Wirley Gonçalves Assunção</name><name sortKey="Barao, Valentim Adelino Ricardo" sort="Barao, Valentim Adelino Ricardo" uniqKey="Barao V" first="Valentim Adelino Ricardo" last="Barão">Valentim Adelino Ricardo Barão</name><name sortKey="Delben, Juliana Aparecida" sort="Delben, Juliana Aparecida" uniqKey="Delben J" first="Juliana Aparecida" last="Delben">Juliana Aparecida Delben</name><name sortKey="Ferreira, Mayara Barbosa" sort="Ferreira, Mayara Barbosa" uniqKey="Ferreira M" first="Mayara Barbosa" last="Ferreira">Mayara Barbosa Ferreira</name><name sortKey="Garcia Junior, Idelmo Rangel" sort="Garcia Junior, Idelmo Rangel" uniqKey="Garcia Junior I" first="Idelmo Rangel" last="Garcia Júnior">Idelmo Rangel Garcia Júnior</name><name sortKey="Ramalho Ferreira, Gabriel" sort="Ramalho Ferreira, Gabriel" uniqKey="Ramalho Ferreira G" first="Gabriel" last="Ramalho-Ferreira">Gabriel Ramalho-Ferreira</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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