Glass Fiber Post lengths and adhesive strategies to restore extensively damaged canines

Oscar João Klüppel Neto; Kaye Varaschin  Theodorovicz; Aline Akemi Mori; Gabriela Cristina Santin; Fernanda Ferruzzi  Lima; Rafael Rocha  Pacheco; Daniel Sundfeld; Núbia Inocêncya Pavesi  Pini

doi:10.33448/rsd-v11i3.25868

Autores

Oscar João Klüppel Neto Ingá University Center https://orcid.org/0000-0003-4231-3737
Kaye Varaschin Theodorovicz Pato Branco University Center https://orcid.org/0000-0002-3965-2378
Aline Akemi Mori Ingá University Center https://orcid.org/0000-0001-8517-7443
Gabriela Cristina Santin Ingá University Center https://orcid.org/0000-0003-0216-0502
Fernanda Ferruzzi Lima Ingá University Center https://orcid.org/0000-0003-0212-7067
Rafael Rocha Pacheco University of Detroit Mercy https://orcid.org/0000-0001-5766-6039
Daniel Sundfeld Ingá University Center https://orcid.org/0000-0001-7736-6105
Núbia Inocêncya Pavesi Pini Ingá University Center https://orcid.org/0000-0001-8604-3201

DOI:

https://doi.org/10.33448/rsd-v11i3.25868

Palavras-chave:

Técnica para Retentor Intrarradicular; Resistência à Flexão; Cura Dupla de Cimentos Resinários; Fratura por fadiga.

Resumo

O objetivo deste trabalho foi avaliar diferentes comprimentos de pinos de fibra de vidro e estratégias adesivas para restaurar caninos com fraturas extensas. Sessenta caninos humanos foram aleatóriamente divididos em dois grupos (n=30), de acordo com o cimento resinoso utilizado: autoadesivo ou convencional. Cada grupo foi então dividido em 3 grupos (n=10) de acordo com os comprimentos dos pinos: 5, 7.5 e 10mm. A porção radicular foi tratada endodônticamente, o terço cervical foi alargado simulando fratura extensa e a porção coronária foi reconstruida com resina composta. As amostras foram preparadas com um ligamento periodontal experimental e submetidas a teste de fadiga (160N – 1.200.000 ciclos), seguido de teste de resistência a fratura. Os resultados foram submetidos aos testes de ANOVA e Tukey (α=5%). Os comprimentos dos pinos de fibra de vidro testados não influenciaram a resistência a fratura (p<0.05). Entretanto a performance dos cimentos convencionais foi melhor do que a dos cimentos autoadesivos quando comparados pinos de mesmo comprimento (p<0.05) Fraturas reparáveis foram prevalentes (70-90%) em todos os grupos testados. Cimentos resinosos convencionais forneceram maior resistência a fratura do que os autoadesivos, independente do comprimento do pino utilizado.

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Comprimento dos pinos de fibra de vidro e estratégias adesivas para restaurar caninos fraturados

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