Patients with non-vital immature teeth present a unique challenge for dentists. Managing such cases to restore function, aesthetics, and biologic harmony with adjacent tissues requires a specially tailored treatment plan that combines endodontic and restorative steps. Apexification using Mineral Trioxide Aggregate (MTA) is a promising recent approach for such cases. This article presents a case report of MTA apexification with a collagen barrier and custom-made gutta-percha condenser.