Precision in endodontic therapy by novel-guided approach.

Guided endodontics has proven effective in treating pulp canal obliteration (PCO). However, challenges arise when dealing with limited vertical space, particularly in cases where long burs and guides are necessary. In this case report, we introduce a novel approach utilizing a sleeveless three-dimensional (3D)-printed guide, aimed at overcoming vertical space constraints while maintaining visibility and irrigation during drilling. A 22-year-old male patient presented with intermittent pain around tooth #21, diagnosed with pulp necrosis and symptomatic apical periodontitis. Employing the sleeveless 3D-printed guide alongside a long neck carbide bur, we achieved a minimally invasive access cavity up to the root canal. This technique presents a promising alternative to conventional guided endodontic approaches, particularly beneficial in cases of PCO.