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Bond strength of resin cements to novel materials to intracanal posts applications / Resistência de união de cimentos resinosos a novos materiais para pinos intrarradiculares
Mariotto, Lígia Gabrielle Sanches; Vidal, Carla Larissa; Castro, Denise Tornavoi de; Catirse, Alma Blásida Concepcion Elizaur Benitez; Almeida, Rossana Pereira de; Reis, Andréa Cândido dos.
  • Mariotto, Lígia Gabrielle Sanches; University of São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthesis. Ribeirão Preto. BR
  • Vidal, Carla Larissa; University of São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthesis. Ribeirão Preto. BR
  • Castro, Denise Tornavoi de; School of Dentistry of Uberaba. Department of Biomaterials. Uberaba. BR
  • Catirse, Alma Blásida Concepcion Elizaur Benitez; University of São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthesis. Ribeirão Preto. BR
  • Almeida, Rossana Pereira de; University of São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthesis. Ribeirão Preto. BR
  • Reis, Andréa Cândido dos; University of São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthesis. Ribeirão Preto. BR
Braz. dent. sci ; 21(4): 445-450, 2018. tab, ilus
Article in English | LILACS, BBO | ID: biblio-966307
ABSTRACT

Objective:

Evaluate the bond strength of resin cements to new materials for application in intraradicular posts. Material and

Methods:

Five materials were evaluated fiberglass, PET, polyethylene, polyacetal and PTFE. Two commercial resin cements (Rely X U200 and Rely X Arc) were applied on the test specimens of the materials (9x3mm) and the bonding was evaluated through the shear bond strength test, where the chisel operated with a load of 1kN and a velocity of 0.5mm/min at the cement/material interface. The data were analyzed by the Shapiro-Wilk test, followed by the two-way analysis of variance, performed with the Bonferroni post-test (α=0.05).

Results:

The glass fiber was statistically different from all evaluated materials (p0.05). Comparing the two cements, a statistical difference was found between Rely X U200 and Arc only for the glass fiber (p=0).

Conclusion:

PET, polyethylene, polyacetal and PTFE exhibited reduced bond strength compared to the glass fiber (AU)
RESUMO

Objetivo:

Avaliar a resistência de união de cimentos resinosos a novos materiais para aplicação em pinos intrarradiculares. Material e

método:

Foram avaliados cinco materiais fibra de vidro, PET, polietileno, poliacetal e PTFE. Dois cimentos resinosos comerciais (Rely X U200 e Rely X Arc) foram aplicados sobre os corpos de prova dos materias (9x3mm) e a resistência de união foi avaliada através do teste de cisalhamento, onde o cinzel atuou com carga de 1kN e velocidade de 0,5mm/min na interface cimento/material. Verificada a normalidade dos dados através do teste Shapiro-Wilk, foi realizada a análise de variância de dois fatores com pós-teste de Bonferroni (α=0,05).

Resultados:

a fibra de vidro foi diferente estatisticamtente de todos os materiais avaliados (p0,05). Comparando-se os dois cimentos, foi encontrada diferença estatística entre o Rely X U200 e Arc apenas para a fibra de vidro (p=0).

Conclusão:

PET, polietileno, poliacetal e PTFE apresentaram resistência de união reduzida comparando-se à fibra de vidro. (AU)
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Polytetrafluoroethylene / Polyethylene Terephthalates / Resin Cements Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: School of Dentistry of Uberaba/BR / University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Polytetrafluoroethylene / Polyethylene Terephthalates / Resin Cements Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: School of Dentistry of Uberaba/BR / University of São Paulo/BR