Fracture resistance of weakened roots restored with relined or milled CAD-CAM glass fiber posts

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dc.contributor.authorMaia, Belizane Das Graças Oliveira
dc.contributor.authorSantos, Thais da Silva Alves [UNESP]
dc.contributor.authorCarvalho, Cláudio Antonio Talge [UNESP]
dc.contributor.authorVerner, Francielle Silvestre
dc.contributor.authorJunqueira, Rafael Binato
dc.contributor.institutionFederal University of Juiz de Fora
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:04:51Z
dc.date.available2023-07-29T16:04:51Z
dc.date.issued2023-01-01
dc.description.abstractThis in vitro study compared the fracture resistance of weakened roots restored with milled or relined glass fiber post (GFP). Seventy bovine incisors were divided into seven groups, according to the weakening protocol (none: control; medium-weakened: MW; highly-weakened: HW) and post anatomization technique (non-relined, relined with Bulk Fill or Z350 resin; milled GFP: M). Roots were thermomechanical cycled and submitted to compression. Frequencies and groups were compared by the chi-square test and two-factor ANOVA, Tukey’s, and t-test (α=5%). The HW-M obtained the lowest values, showing significant differences compared to all groups (p<0.001). The highest value was HW-Bulk fill, with significant difference compared to MW-M (p=0.037) and HW-M (p<0.001). The frequency of repairable fractures was 100% in the control, 87%, and 63% in the MW and HW, respectively. Relined or milled GFPs can be considered to rehabilitate weakened teeth since failure patterns were predominantly repairable in all groups.en
dc.description.affiliationHealth Applied Sciences Master Program Federal University of Juiz de Fora, Campus GV. Av. Dr. Raimundo Monteiro Rezende 330, Sala 301, Centro, Minas Gerais
dc.description.affiliationDepartment of Restorative Dentistry Endodontic Division São Paulo State University (Unesp) Institute of Science and Technology, Av. Eng. Francisco José Longo, 777–Jardim São Dimas, SP
dc.description.affiliationHealth Applied Science Program and Department of Dentistry Federal University of Juiz de Fora, Campus GV. Av. Dr. Raimundo Monteiro Rezende 330, Sala 301, Centro, Minas Gerais
dc.description.affiliationUnespDepartment of Restorative Dentistry Endodontic Division São Paulo State University (Unesp) Institute of Science and Technology, Av. Eng. Francisco José Longo, 777–Jardim São Dimas, SP
dc.format.extent92-98
dc.identifierhttp://dx.doi.org/10.4012/dmj.2022-114
dc.identifier.citationDental Materials Journal, v. 42, n. 1, p. 92-98, 2023.
dc.identifier.doi10.4012/dmj.2022-114
dc.identifier.issn1881-1361
dc.identifier.issn0287-4547
dc.identifier.scopus2-s2.0-85147252881
dc.identifier.urihttp://hdl.handle.net/11449/249625
dc.language.isoeng
dc.relation.ispartofDental Materials Journal
dc.sourceScopus
dc.subjectCAD-CAM technology
dc.subjectCompressive strength
dc.subjectFlared root canal
dc.subjectFracture resistance
dc.subjectPost and core technique
dc.titleFracture resistance of weakened roots restored with relined or milled CAD-CAM glass fiber postsen
dc.typeArtigo

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