Finite element analysis to compare complete denture and implant-retained overdentures with different attachment systems.
Identifieur interne : 005796 ( Main/Exploration ); précédent : 005795; suivant : 005797Finite element analysis to compare complete denture and implant-retained overdentures with different attachment systems.
Auteurs : Valentim Adelino Ricardo Barão [Brésil] ; Wirley Gonçalves Assunção ; Lucas Fernando Tabata ; Juliana Aparecida Delben ; Erica Alves Gomes ; Edson Antonio Capello De Sousa ; Eduardo Passos RochaSource :
- The Journal of craniofacial surgery [ 1536-3732 ] ; 2009.
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Abstract
This finite element analysis compared stress distribution on complete dentures and implant-retained overdentures with different attachment systems. Four models of edentulous mandible were constructed: group A (control), complete denture; group B, overdenture retained by 2 splinted implants with bar-clip system; group C, overdenture retained by 2 unsplinted implants with o'ring system; and group D, overdenture retained by 2 splinted implants with bar-clip and 2 distally placed o'ring system. Evaluation was performed on Ansys software, with 100-N vertical load applied on central incisive teeth. The lowest maximum general stress value (in megapascal) was observed in group A (64.305) followed by groups C (119.006), D (258.650), and B (349.873). The same trend occurred in supporting tissues with the highest stress value for cortical bone. Unsplinted implants associated with the o'ring attachment system showed the lowest maximum stress values among all overdenture groups. Furthermore, o'ring system also improved stress distribution when associated with bar-clip system.
DOI: 10.1097/SCS.0b013e3181abb395
PubMed: 19553853
Affiliations:
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xml:lang="en">Finite element analysis to compare complete denture and implant-retained overdentures with different attachment systems.</title><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="3"><nlm:affiliation>Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Araçatuba, São Paulo, Brazil.</nlm:affiliation><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Araçatuba, São Paulo</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 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vitro</term><term>Test de matériaux</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This finite element analysis compared stress distribution on complete dentures and implant-retained overdentures with different attachment systems. Four models of edentulous mandible were constructed: group A (control), complete denture; group B, overdenture retained by 2 splinted implants with bar-clip system; group C, overdenture retained by 2 unsplinted implants with o'ring system; and group D, overdenture retained by 2 splinted implants with bar-clip and 2 distally placed o'ring system. Evaluation was performed on Ansys software, with 100-N vertical load applied on central incisive teeth. The lowest maximum general stress value (in megapascal) was observed in group A (64.305) followed by groups C (119.006), D (258.650), and B (349.873). The same trend occurred in supporting tissues with the highest stress value for cortical bone. Unsplinted implants associated with the o'ring attachment system showed the lowest maximum stress values among all overdenture groups. Furthermore, o'ring system also improved stress distribution when associated with bar-clip system.</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><noCountry><name sortKey="Assuncao, Wirley Goncalves" sort="Assuncao, Wirley Goncalves" uniqKey="Assuncao W" first="Wirley Gonçalves" last="Assunção">Wirley Gonçalves Assunção</name><name sortKey="De Sousa, Edson Antonio Capello" sort="De Sousa, Edson Antonio Capello" uniqKey="De Sousa E" first="Edson Antonio Capello" last="De Sousa">Edson Antonio Capello De Sousa</name><name sortKey="Delben, Juliana Aparecida" sort="Delben, Juliana Aparecida" uniqKey="Delben J" first="Juliana Aparecida" last="Delben">Juliana Aparecida Delben</name><name sortKey="Gomes, Erica Alves" sort="Gomes, Erica Alves" uniqKey="Gomes E" first="Erica Alves" last="Gomes">Erica Alves Gomes</name><name sortKey="Rocha, Eduardo Passos" sort="Rocha, Eduardo Passos" uniqKey="Rocha E" first="Eduardo Passos" last="Rocha">Eduardo Passos Rocha</name><name sortKey="Tabata, Lucas Fernando" sort="Tabata, Lucas Fernando" uniqKey="Tabata L" first="Lucas Fernando" last="Tabata">Lucas Fernando Tabata</name></noCountry><country name="Brésil"><region name="État de São Paulo"><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></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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