Can the Remaining Coronal Tooth Structure Influence the Mechanical Behavior of Nonpost Full Crowns?

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorWestern Paraná State University (Unioeste)-
Autor(es): dc.contributorVrije Universiteit Amsterdam-
Autor(es): dc.creatorPinto, Alana Barbosa Alves-
Autor(es): dc.creatorAndrade, Guilherme Schmitt De-
Autor(es): dc.creatorHasna, Amjad Abu-
Autor(es): dc.creatorSouza, Joyce Rodrigues De-
Autor(es): dc.creatorTribst, João Paulo Mendes-
Autor(es): dc.creatorBorges, Alexandre Luiz Souto-
Data de aceite: dc.date.accessioned2025-08-21T16:09:27Z-
Data de disponibilização: dc.date.available2025-08-21T16:09:27Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-05-28-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1055/s-0043-1776117-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298185-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298185-
Descrição: dc.descriptionObjectives This study investigated the impact of the remaining coronal tooth structure on the mechanical behavior of nonpost (NP) full crowns on endodontically treated maxillary central incisors. Materials and Methods Forty bovine incisors with NP and 2-mm of ferrule were divided into four groups based on the remaining structure: complete 2-mm ferrule (NP-2), absence of mesial and distal ferrule effect (NP-BL), absence of buccal and lingual ferrule effect (NP-MD), and no ferrule (NP-0). The specimens underwent a stepwise stress fatigue test until fracture occurred, and stress distribution was analyzed using in silico finite element analysis (FEA). Additionally, groups with endodontic posts (P) were simulated in the FEA. Results The results showed that the survival rates varied among the different groups under oblique loading. The NP-2 group exhibited the highest survival rate, with all samples enduring loads up to 200 N and some surviving up to 520 N. The NP-MD and NP-BL groups had lower survival rates, while the NP-0 group had the poorest survival rate. The predominant failure mode was a nonrepairable root fracture. FEA results indicated no significant difference between groups with and without posts. NP intraradicular restorations on nonweakened roots with a minimum height of 2mm and partial or total ferrule thickness of 1mm offer a promising treatment option. Conclusion A complete 2-mm ferrule was found to be the most favorable configuration for NP full crowns. However, maintaining the remaining tissue is crucial, as both combinations with preserved ferrule effect exhibited superior behavior in terms of fatigue and fracture load compared to the group with no ferrule. These findings contribute to understanding the mechanical considerations for NP full crowns and provide insights into treatment planning and design choices in restorative dentistry.-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of São José Dos Campos São Paulo State University (UNESP), São José dos Campos-
Descrição: dc.descriptionCenter of Biological and Health Sciences School of Dentistry Western Paraná State University (Unioeste)-
Descrição: dc.descriptionDepartment of Restorative Dentistry Endodontics Division Institute of Science and Technology São Paulo State University (ICT-UNESP), Av. Eng. Francisco José Longo Avenue 777-
Descrição: dc.descriptionDepartment of Reconstructive Oral Care Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam Vrije Universiteit Amsterdam-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of São José Dos Campos São Paulo State University (UNESP), São José dos Campos-
Descrição: dc.descriptionDepartment of Restorative Dentistry Endodontics Division Institute of Science and Technology São Paulo State University (ICT-UNESP), Av. Eng. Francisco José Longo Avenue 777-
Formato: dc.format652-664-
Idioma: dc.languageen-
Relação: dc.relationEuropean Journal of Dentistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcrowns-
Palavras-chave: dc.subjectendodontically treated incisors-
Palavras-chave: dc.subjectfatigue-
Palavras-chave: dc.subjectfinite element analysis-
Palavras-chave: dc.subjectfracture resistance-
Título: dc.titleCan the Remaining Coronal Tooth Structure Influence the Mechanical Behavior of Nonpost Full Crowns?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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