Resumo

ABREU-RODRIGUEZ, Rixio; NAVAL-ESTEVE, Victoria; MONTESINOS-VIDAL, Beatriz  e  PALLARES-SABATER, Antonio. Dimensional compatibility between accessory gutta-percha cones and spreaders. RCOE [online]. 2004, vol.9, n.6, pp.645-652. ISSN 1138-123X.

Objective: This study evaluated the dimensional compatibility between guttapercha cones and spreaders. Material and method: Guttapercha cones and spreaders of different sizes and brands were randomly selected (Dentsply / DeTrey, Dentsply / Maillefer and Dental Boston Scientific). 26 groups were made (n: 10). Each sample was observed with an optical microscope (50-100X), and measured at D₁ and D₂. The results were sujected to a descriptive statistical analysis. Results: According to our data, there was dimensional variability among guttapercha cones of a same size, spreaders and guttapercha points and among spreders, although the differences in the last group were smaller. Conclusions: There are dimensional discrepancies between guttapercha cones and spreaders, which could cause disadvantages during the three dimensional root canal filling and leaf to an incorrect apical sealing.

Palavras-chave : Root canal filling; Spreaders; Gutta-percha; Root canal instruments.

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