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The experiment for physical properties and manipulability in consistency, washing efficiency, foaming, and manipulation of EDTA root canal preparation cream and in flexibility, filming, and manipulation of calcium hydroxide paste obtained the following results. 1. According to the comparison for the amount sticking to endo file in consistency test, the product of Company A with 33.84mm was more convenient in being applied within root canals, as compared with that of Company B with 37.01mm. 2. According to the comparison for washing efficiency and forming using EDTA root canal preparation cream and 5% Naocl, the product of Company A had higher washing efficiency by producing more peeling of pigmented root canals of endo block and more generator oxygen. 3. The flexibility test of oil-based calcium hydroxide paste showed 21.50mm for the product of Company A; the filming test showed 0.055mm for the product of Company A and 0.051mm for that of Company B, which was thus found to be superior. 4. The flexibility test of water-based calcium hydroxide paste showed 25.06mm for the product of Company A and 22.12mm for that of Company B. The filming test showed 0.057mm for the product of Company A, which was thus found to be superior to that of Company B with 0.069mm.
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