• Slide 1
    Fig. 1 A retracted facial view of tooth No. 25 that has had a porcelain fracture repaired with composite.
  • Slide 2
    Fig. 2 A lingual view of No. 25 after access has been made to the root canal system.
  • Slide 3
    Fig. 3 A 10 endodontic file is used to establish the working length of the root canal. An apex locator can also be used for this purpose.
  • Slide 4
      Fig. 4 A radiograph of the 10 file used to establish the working length of the root canal.
  • Slide 5
      Fig. 5 The PF03L25 glide-path instrument (the Komet® Pathfinder) is used to negotiate the root canal working length.
  • Slide 1
    Fig. 6 The Komet F360™ file size 025 is used in an up and down “picking” motion.
  • Slide 2
    Fig. 7 A radiograph of the 25 F360™ file at working length. Note the gentle curve in the apical third of the root canal is accurately followed.
  • Slide 3
    Fig. 8 Using the orifice opening instrument to further taper the coronal one-third of the root canal system to facilitate obturation.
  • Slide 4
      Fig. 9 A radiograph of the master gutta-percha cone at the working length.
  • Slide 5
      Fig. 10 The master cone is placed to the prepared apex of the root canal.
  • Slide 1
    Fig. 11 A view of the size 25 finger spreader with two size 25 accessory gutta-percha points in place.
  • Slide 2
    Fig. 12 The heated instrument is used to sear off the excess gutta-percha protruding from the root canal access cavity preparation.
  • Slide 3
    Fig. 13 The crown preparation is modified prior to placement of a fiber post into the root canal system.
  • Slide 4
      Fig. 14 A Gates Glidden bur is used to remove gutta-percha so post room can be made.
  • Slide 4
      Fig. 15 A radiograph of the cemented post. Note the gutta-percha in the curved portion of the canal remains as an apical seal, while the fiber post is placed at an optimal depth to reinforce the coronal portion of this very small mandibular central incisor preparation.