Figure 2

The percentage of Ca(OH) 2 removal in each region of the apical third with 10% citric acid or 2.5% NaOCl combined with different instruments (* P <0.05).
The percentage of Ca(OH) 2 removal in each region of the apical third with 10% citric acid or 2.5% NaOCl combined with different instruments (* P <0.05).