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Push-out bond strength of glass fiber posts luted with two resin cements / Resistência à tração de pinos de fibra de vidro cimentados com dois tipos de cimento resinoso
LEÓN, Blanca Liliana Torres; FRANCO, Vitor Lopes; SILVA, Emily Vivianne Freitas da; MUNIZ, Leonardo; RIBEIRO, Fernando Carneiro.
  • LEÓN, Blanca Liliana Torres; Bahia Federal University. Department of Prosthodontics. Salvador. BR
  • FRANCO, Vitor Lopes; Bahiana School of Medicine and Public Health. Department of Prosthodontics. Salvador. BR
  • SILVA, Emily Vivianne Freitas da; Univ. Estadual Paulista. Aracatuba Dental School. Department of Dental Materials and Prosthodontics. Aracatuba. BR
  • MUNIZ, Leonardo; Bahiana School of Medicine and Public Health. Department of Prosthodontics. Salvador. BR
  • RIBEIRO, Fernando Carneiro; State University of Feira de Santana. Department of Prosthodontics. Feira de Santana. BR
Braz. dent. sci ; 20(4): 78-84, 2017. tab, ilus
Article in English | LILACS, BBO | ID: biblio-877970
ABSTRACT
Objectives: To evaluate the bond strength of a prefabricated glass fiber post to the root dentin with two resin cements using the push-out test. Material and Methods: Thirty fiber posts (White Post ECD) were cemented in human endodontically treated anterior teeth with two resin cements (n=15): RelyxTM ARC and AllCem. The roots were transversely sectioned and divided in cervical, middle and apical thirds after 48 h of cementation. The specimens' retention was tested by push-out method. The results were analyzed by 2-way ANOVA and Tukey's test (p <0.05). Results: There were no significant differences in the bond strength between the resin cements. The bond strength was higher in cervical third than in middle and apical thirds for both resin cements. It was observed higher percentages of adhesive failures followed by mixed. Conclusions: Both resin cements are indicated in the cementation of glass fiber post. (AU)
RESUMO
Objetivo: Avaliar a resistência de união entre dentina radicular e pino pré-fabricado, utilizando dois sistemas cimentantes, por meio do teste push-out. Material e Métodos: Trinta pinos de fibra de vidro (White Post DCE) foram cimentados a dentes humanos anteriores, tratados endodonticamente, com o auxílio de dois sistemas cimentantes (n=15): RelyxTM ARC e AllCem. Após 48 horas da cimentação, as raízes foram seccionadas transversalmente e divididas em terços cervical, médio e apical. Os corpos-de-prova foram submetidos ao teste de cisalhamento por extrusão "push-out". Os resultados foram submetidos aos testes estatísticos de análise de variância (2-way ANOVA) e de Tukey y (p<0,05). Resultados: Não houve diferença estatisticamente significativa na resistência de união entre os dois cimentos resinosos utilizados. A resistência de união foi maior no terço cervical do que nos terços médio e apical. Foi observada maior frequência de falhas adesivas seguida das mistas. Conclusão: Os dois cimentos resinosos são sugeridos para a cimentação de pinos de fibra de vidro (AU)
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Biomechanical Phenomena / Post and Core Technique / Dental Prosthesis Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Bahia Federal University/BR / Bahiana School of Medicine and Public Health/BR / State University of Feira de Santana/BR / Univ. Estadual Paulista/BR

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Full text: Available Index: LILACS (Americas) Main subject: Biomechanical Phenomena / Post and Core Technique / Dental Prosthesis Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Bahia Federal University/BR / Bahiana School of Medicine and Public Health/BR / State University of Feira de Santana/BR / Univ. Estadual Paulista/BR