A root canal filling cone made of a material having a composition that can maintain its physical and chemical characteristics and shelf life after sterilization, and a process of sterilizing the point/cone prior to shipment to a user. In one aspect, the cone is made of a composition that includes a plurality of base polymers of substantially equal amounts, and nanoparticles, which can withstand sterilization by gamma irradiation. In one embodiment, the compound includes Gutta Percha based polymers. In another aspect, the Gutta Percha based cone is packaged and sterilized by irradiation prior to shipment to a user. In one embodiment of the present invention, the irradiation is gamma irradiation.
