Cook® Sialendoscopy Dilator Set Product Information Once you establish access using the Cook soft-tip wire guide, a series of flexible dilators can be introduced over the wire to easily expand the papilla and prepare the salivary duct for the introduction of procedural instruments. Related products Add to cart Cook® Chiba Echotip® Biopsy Needle $0.00 Read more Cook® NCircle® Tipless Salivary Stone Extractor Read more Cook® NGage® Salivary Stone Extractor Read more Cook® Sialendoscopy Wire Guide Read more Medasil Bite Guards