Evaluation of root canal obturation: a three-dimensional in vitro study

By Hammad M, Qualtrough A, Silikas N.

Date: 10/2009
Journal: JOE


Purpose: To measure percentage of volume of voids and gaps in root canals obturated with different obturation materials by using micro computed tomography (micro-CT)

N= 48 single rooted teeth with canal curvature of <10


•The teeth were decoronated and instrumented up to F3 Protaper file •Teeth were randomly allocated into 4 groups:

1.Gutta percha and TubliSeal sealer,

2.EndoRez points and EndoRez sealer,

3.RealSeal points and RealSeal sealer,

4.Gutta-percha point and GuttaFlow sealer.

•All the groups were filled by cold lateral compaction except G4 (filled with single point).

•Roots were scanned with micro-CT, and volume measurements for voids and gaps in the obturated roots were carried out by using specialized CT software.

Most highlighted Results:

•Statistical analysis showed that gutta-percha exhibited an overall significantly lower percentage (1.02%) of voids and gaps compared to the other groups.

Clinical significance:

Gutta percha and TubliSeal provided the best results in terms of % gaps and voids. However, the resistance to leakage was not assessed.