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Compressive strength of premolars restored with ceramic crowns and supported with a glass fiber post using different luting agents

OBJECTIVE: The retention of glass fiber post (GFP) is considered a key factor for the long-term success of restorations of endodontically treated teeth. This study aimed to compare the compressive strength of a ceramic crown supported by a GFP using different luting agents. METHODS: Forty single-roo...

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Detalles Bibliográficos
Autores principales: Paixão, Flávia Carvalho de Oliveira, Rodrigues, Vandilson Pinheiro, George, Roy, Souza, Soraia de Fátima Carvalho, Paiva, Antonio Ernandes Macêdo, Pereira, Adriana de Fátima Vasconcelos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9577347/
https://www.ncbi.nlm.nih.gov/pubmed/36267533
http://dx.doi.org/10.1016/j.sdentj.2022.07.003
Descripción
Sumario:OBJECTIVE: The retention of glass fiber post (GFP) is considered a key factor for the long-term success of restorations of endodontically treated teeth. This study aimed to compare the compressive strength of a ceramic crown supported by a GFP using different luting agents. METHODS: Forty single-rooted premolars were randomly divided into four groups (n = 10 each): control group (teeth without a GFP), Ketac Cem group (glass ionomer), RelyX ARC group (conventional dual-curing resin), and RelyX U200 group (self-adhesive dual-curing resin). After luting of the posts and placement of all-ceramic crowns made using feldspathic porcelain (Noritake EX-3), they were exposed to thermocycling for 1000 cycles and compressive strength tests. Statistical analysis included Kruskal–Wallis test with Dunn’s multi-comparison test. RESULTS: The Ketac Cem group and RelyX U200 group showed significantly greater fracture resistance to compressive loading than the control group. CONCLUSION: This study indicates a possible role of the luting agent used with the GFP in influencing the compressive strength of the restored teeth. In this study, the self-adhesive dual-curing resin and glass ionomer both offered resistance to fractures.