Single-visit revascularization treatment of an immature permanent tooth with apical periodontitis: A case report

We herein describe successful revascularization treatment of an immature mandibular left second premolar with apical periodontitis in a 10-year-old patient. The tooth was treated using coronal root irrigation with 5% sodium hypochlorite (NaOCl) and 3% hydrogen peroxide without instrumentation and then packed using calcium hydroxide paste into the coronal canal in a single visit. X-ray photographic examination showed the start of apical closure 5 months after the revascularization procedure. Thickening of the canal wall and complete apical closure was confirmed 15 months after the initial treatment. The successful outcome of this case report suggests that this conservative revascularization treatment approach can preserve the vitality of dental pulp stem cells and create new hard tissues for pulp repair, resulting in completion of root maturation.