Avaliação da resistencia a fratura de raizes debilitadas reconstruidas morfologicamente com materiais adesivos

AUTOR(ES)
DATA DE PUBLICAÇÃO

1995

RESUMO

Several dental roots extractions have been indicated due to carie, incorrected intra-root preparations, remotions of pin and post. The aim of this research was to evaluate the resistence fracture of debilitated root filled with adhesive materials. Unirradicular with cast and cemented post were utilized in the following conditions: positive control (conventional preparation), negative control (debilitated root), roots filled with glass ionomer (Chelon-Silver and Ketac Bond), root filled with light cured glass ionomer (Vitremer), root filled with composite/adhesive system (Herculite XRV and Z 100). After remotion of clinical crown teeth, the roots were prepared and acrilic resin mold were obtained and after, included and cast. The metallic post in Cu-Al were adapted and cemented in the root. The samples were submited to compressive strenght in an universal testing machine until rupture. The results were expressed in Kgf and analized statistically. It was concluded that: among the tested materials, the composite Z 100 presented the best performance if compared with whole materials including positive control; the Vitremer ionomer, the composite XRV, Chelon-Silver and positive control presented similar results; the Ketac-Bond ionomer had unfavorable performance in relation of all sample and similar to negative control

ASSUNTO(S)

materiais dentarios reabsorção da raiz (dentes) adesivos dentarios

ACESSO AO ARTIGO

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