Abstract
Background:
Managing severe calcified teeth in endodontics seems to be challenging for clinical, so static and dynamic guided endodontics ware developed to reduce the professional stress, increasing the patient's comfort, gives shorter clinical or procedural sessions with minimal invasive approach, and predictable canal location to avoid iatrogenic mishaps to be happened.
Case Presentation:
Preoperative investigations were conducted, tooth #12 had calcified chamber. Cone beam computed tomography (CBCT) was taken (Sirona GALILEOS Comfort CBCT scanner) showed that the coronal third of root canal is obliterated. For Guide planning, maxillary alginate impression was taken and scanned by digital scanner (smart optics - Vinyl High Resolution). Digital planning was done by 3Shape Implant Studio Software using sleeve size 3.5 mm (external diameter). Guided was printed by Digital Light Processing (DLP) 3d printing machine (NextDent 5100 3D printer). Enamel drilling by diamond round bur, guide was adapted to mouth and drill through until reach to 10 mm, periapical radiograph was taken to confirm the drilling depth.
Conclusion:
Guided treatment modality is not only used for anterior teeth or initial endodontic treatment, for posterior teeth and re-treatment endodontic cases as well. Finally, guided endodontic should be considered as mandatory treatment modality for pulp canal obliteration.

Key words: Case Report, Guided Endodontics, Obliterated Pulp Canal, Guided Endodontic Access Cavity, Calcified Root Canal System, Static Endodontic Navigation