[Experimental study on apical sealing ability of Sankin hydroxyapatite root canal sealer].
OBJECTIVE
To compare the apical sealing ability of Sankin hydroxyapatite root canal sealer with traditional root canal sealers.


METHODS
Determination of the length of apical dye leakage by methylene leakage test.


RESULTS
The length of apical dye leakge of Sankin hydroxyapatite root canal sealer was 2.40 mm, that of iodoform paste and zinc oxide eugenol paste was 4.37 mm and 5.80 mm,respectively. There was no significant difference between iodoform paste and zinc oxide-eugenol paste (P>0.05);whereas there was significant difference between Sankin hydroxyapatite root canal sealer and iodoform paste or zinc oxide eugenol paste(P<0.01).


CONCLUSIONS
Sankin hydroxyapatite root canal sealer has better apical sealing ability than traditional root canal sealers.
Ma
X H
XH
Department of Oral Medicine, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Zhu
Y Q
YQ
Wang
X Y
XY