Based on the total weight of the composition: (a) 0.5 to 40% by weight of a water soluble polymer having an average molecular weight of 5000 to 100,000； (b) 20 to 40% by weight of a particulate inorganic radiopaque filler； c) Alkali resistant particulate filler having an average particle size of 1 to 100 nm 0.01 to 5% by weight； (d) Alkaline earth metal hydroxide and / or alkali metal hydroxide 5 to 25% by weight； (e) A temporary root canal sealer composition comprising 15-45% by weight of water； and (f) 0-25% by weight of a wetting agent.組成物の総重量に基づいて、（ａ）５０００～１００，０００の平均分子量を有する水溶性ポリマー０．５～４０重量％；（ｂ）粒状無機放射線不透過性フィラー２０～４０重量％；（ｃ）１～１００ｎｍの平均粒径を有する耐アルカリ性粒状フィラー０．０１～５重量％；（ｄ）アルカリ土類金属水酸化物及び／又はアルカリ金属水酸化物５～２５重量％；（ｅ）水１５～４５重量％；並びに（ｆ）湿潤剤０～２５重量％を含む仮根管シーラー組成物。
