{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T03:21:39Z","timestamp":1789960899245,"version":"4.0.1"},"reference-count":43,"publisher":"Georg Thieme Verlag KG","issue":"02","license":[{"start":{"date-parts":[[2024,3,31]],"date-time":"2024-03-31T00:00:00Z","timestamp":1711843200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur J Dent"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Objectives\u2009This 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.<\/jats:p><jats:p>\n          Materials and Methods\u2009Forty 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.<\/jats:p><jats:p>\n          Results\u2009The 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.<\/jats:p><jats:p>\n          Conclusion\u2009A 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.<\/jats:p>","DOI":"10.1055\/s-0043-1776117","type":"journal-article","created":{"date-parts":[[2024,3,31]],"date-time":"2024-03-31T22:31:27Z","timestamp":1711924287000},"page":"652-664","source":"Crossref","is-referenced-by-count":4,"title":["Can the Remaining Coronal Tooth Structure Influence the Mechanical Behavior of Nonpost Full Crowns?"],"prefix":"10.1055","volume":"18","author":[{"given":"Alana Barbosa Alves","family":"Pinto","sequence":"additional","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, Institute of Science and Technology of S\u00e3o Jos\u00e9 dos Campos, S\u00e3o Paulo State University (UNESP), S\u00e3o Jos\u00e9 dos Campos, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guilherme Schmitt de","family":"Andrade","sequence":"additional","affiliation":[{"name":"Center of Biological and Health Sciences, School of Dentistry, Western Paran\u00e1 State University (Unioeste), Cascavel, PR, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1112-985X","authenticated-orcid":false,"given":"Amjad","family":"Abu Hasna","sequence":"additional","affiliation":[{"name":"Department of Restorative Dentistry, Endodontics Division, Institute of Science and Technology, S\u00e3o Paulo State University (ICT-UNESP), Av. 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Francisco Jos\u00e9 Longo Avenue 777, S\u00e3o Jos\u00e9 dos Campos, SP, CEP 12245-000, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joyce Rodrigues de","family":"Souza","sequence":"additional","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, Institute of Science and Technology of S\u00e3o Jos\u00e9 dos Campos, S\u00e3o Paulo State University (UNESP), S\u00e3o Jos\u00e9 dos Campos, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5412-3546","authenticated-orcid":false,"given":"Jo\u00e3o Paulo Mendes","family":"Tribst","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, 1081 LA, Amsterdam, the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandre Luiz 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