A sealer for filling a dental root canal which can seal the apex of the root and the root canal perfectly and can be removed with the gutta percha points when refilling is necessary. The sealer of the invention consists of the same basic material as the gutta percha point, so it adheres to the point initimately and firmly and can seal the apex of the root perfectly. The softening temperature of the sealer is about 40 DEG -45 DEG C., so the points and the sealer can be removed same time by heating at low temperature with a heat carrier when refilling is necessary.
