Effect of different materials and undercut on the removal force and stress distribution in circumferential clasps during direct retainer action in removable partial dentures

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversiteit van Amsterdam and Vrije Universiteit-
Autor(es): dc.creatorTribst, João Paulo Mendes [UNESP]-
Autor(es): dc.creatorDal Piva, Amanda Maria de Oliveira [UNESP]-
Autor(es): dc.creatorBorges, Alexandre Luiz Souto [UNESP]-
Autor(es): dc.creatorAraújo, Rodrigo Máximo [UNESP]-
Autor(es): dc.creatorda Silva, João Maurício Ferraz [UNESP]-
Autor(es): dc.creatorBottino, Marco Antonio [UNESP]-
Autor(es): dc.creatorKleverlaan, Cornelis Johannes-
Autor(es): dc.creatorde Jager, Niek-
Data de aceite: dc.date.accessioned2022-02-22T00:33:23Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:23Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.dental.2019.11.022-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201382-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201382-
Descrição: dc.descriptionObjectives: This study aimed to evaluate the effect of different materials and undercut on the removal force and stress distribution in the supporting tooth and in the circumferential clasp used in removable partial prosthesis. Methods: Upper molars prepared for Akers circumferential clasp with retention and opposing arm were modeled, scanned, elaborated with CAD software and the geometries imported in FEA and analyzed. Six different materials were selected for the clasp (Polyamide, Polyoxymethylene, Polyetheretherketone - PEEK, Gold alloy, Titanium and CoCr) and 3 different undercuts (0.25, 0.50 and 0.75 mm), totaling 18 groups. Results: The clasps presented greater stress in their structure and potentially greater damage to the dental enamel when made with rigid materials and with more undercut; however, they presented greater ability to remain in position. Significance: Polyamide with a higher undercut is an esthetic alternative to rigid metallic clasps. It showed promising behavior because it strongly reduces the damage to the enamel, and even with an undercut of 0.75, the retention is lower than for CoCr with a 0.25 undercut, and this retention might still be sufficient. Polyoxymethylene and Polyetheretherketone (PEEK) are not suitable materials for the clasps, because the maximum stress occurring during removal with higher undercuts is higher than the material strength.-
Descrição: dc.descriptionPhD Graduate Program in Restorative Dentistry São Paulo State University (Unesp) Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777. Jardim São Dimas-
Descrição: dc.descriptionDepartment of Dental Materials Science Academic Center for Dentistry Amsterdam (ACTA) Universiteit van Amsterdam and Vrije Universiteit, Gustav Mahlerlaan #3004-
Descrição: dc.descriptionPhD Graduate Program in Restorative Dentistry São Paulo State University (Unesp) Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777. Jardim São Dimas-
Formato: dc.format179-186-
Idioma: dc.languageen-
Relação: dc.relationDental Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectClasp-
Palavras-chave: dc.subjectFinite element analysis-
Palavras-chave: dc.subjectNon-Metal clasp-
Palavras-chave: dc.subjectProsthetic dentistry-
Palavras-chave: dc.subjectRemovable partial denture-
Palavras-chave: dc.subjectRetention-
Palavras-chave: dc.subjectRetentive force-
Título: dc.titleEffect of different materials and undercut on the removal force and stress distribution in circumferential clasps during direct retainer action in removable partial dentures-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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