Laser-Assisted Pulp Revascularization Therapy for Periapical Periodontitis in an Adult With an Immature Root:Report of One Case.

The conventional treatment for periapical periodontitis faces challenges,especially in the cases with immature roots.This article reports a case of periapical periodontitis in an adult permanent tooth with an immature root,where erbium-doped yttrium aluminum garnet(Er:YAG)laser-activated root canal disinfection was employed to induce apical bleeding and pulp revascularization.A 22-month postoperative follow-up showed healing of the periapical lesion,narrowing of the apical foramen,and positive pulp vitality test results.