1) It should be tacky when mixed to provide good adhesion between it and the canal wall when set. |
2) It should make a hermetic seal. |
3) It should be radiopaque so that it can be visualized on the radiograph. |
4) The particles of powder should be very fine so that they can mix easily with liquid. |
5) It should not shrink upon setting. |
6) It should not discolour tooth structure. |
7) It should be bacteriostatic or at least not encourage bacterial growth. |
8) It should set slowly. |
9) It should be insoluble in tissue fluids. |
10) It should be well tolerated by the periapical tissue. |
11) It should be soluble in common solvents if it is necessary to remove the root canal filling [20] . |