During a root canal procedure, it's imperative that clinicians debride and cleanse canals thoroughly with endodontic irrigants—even where instruments can't reach. However, this can prove tricky, as irrigants must reach where they are needed without expressing beyond the apex of the canal. Dr. Dan Fischer says, "The basic concept of irrigation in endodontics is to get the smallest cannula down close to the apex, but shy of the foramen, and to irrigate from the bottom up. It is imperative to start from the bottom to prohibit trapping air in the canal, because it is very difficult to displace an air bubble when you're filling the canal from the top down. However, the deeper the canal, the more difficult it is to get the cannula down to the apical region of the tooth." In addition to the difficulties caused by deep canals, root canals often have curves with sharp turns that make navigating the cannula to the apical region difficult. That's where Ultradent's NaviTip™ tips really stand out against the other endodontic tips on the market, thanks to Ultradent's exclusive flex tip technology.