Investigation of Coronal Leakage of Root Fillings after Smear Layer Removal with EDTA or Er,Cr:YSGG Laser through Capillary Flow Porometry
Figure 1
Principle of capillary flow porometry. As a result of gas pressure exerted on the sample (a), the largest existing pore is emptied first through which the flow is now measured (b). Then, in a descending order, smaller pores will be emptied until all the pores are empty (c).
