Romania C, Beltes P, Boutsioukis C, Dandakis C.Ex-vivo area-metric analysis of root canal obturation using gutta-percha cones of different taper. International Endodontic Journal, 42, 491–498, 2009.Aim
To evaluate the percentage of gutta-percha and sealer-filled canal area when four different types of master gutta-percha cones were used.Methodology
Sixty mandibular premolars with straight canals were instrumented using System ProTaper rotary instruments with a crown-down technique and assigned to four groups. Canals were obturated with AH-26 sealer either using lateral condensation and 0.02 taper gutta-percha cones (group A), 0.04 taper gutta-percha cones (group B), nonstandardized F- medium (group C) master gutta-percha cones, or a single System ProTaper gutta-percha cone (group D). The percentage of gutta-percha and sealer-filled area was calculated in horizontal sections of the apical portion of each canal, using image analysis software. The data was statistically analysed using Kruskal–Wallis test.Results
The distribution of filling materials amongst groups was not significantly different at each level of sectioning (P > 0.05).Conclusion
The percentage of gutta-percha and sealer-filled canal area was similar when canals were filled with different master cones using lateral condensation or single cone techniques.