2021 年 12 巻 1 号 p. 46-51
A 46-year-old Asian female was referred for endodontic treatment of tooth #36. The tooth was previously restored with a PFM crown. After intraoral examination and radiographic finding, the tooth was diagnosed with Pulpal Necrosis and Asymptomatic Periradicular Periodontitis. A root canal treatment was undertaken. Seventeen months later, treatment failure ensured. This case report discusses the causes of failure along with strategies to save the tooth.