Alcalde Murilo Priori, de Oliveira Neto Raimundo Sales, de Almeida Estela Franzolin Pires, Furlan Renan Diego, de Souza Paulo Roberto Jara, Vivan Rodrigo Ricci, Amoroso-Silva Pablo Andres, Duarte Marco Antônio Húngaro, da Silva Guilherme Ferreira
Department of Dentistry, Endodontics and Dental Materials, Bauru Dental School University of São Paulo Bauru Brazil.
Department of Dentistry Unisagrado Bauru Brazil.
Clin Case Rep. 2025 Sep 22;13(9):e70911. doi: 10.1002/ccr3.70911. eCollection 2025 Sep.
This case report describes the successful treatment of a mature anterior tooth with an open apex and chronic apical abscess using a regenerative endodontic procedure. A 36-year-old man with a history of trauma to tooth 11 at age 10 presented with incomplete root development and an asymptomatic chronic apical abscess. Cone beam tomography revealed a periradicular lesion with buccal bone plate loss. After biomechanical preparation using K-type files and irrigation with 1% sodium hypochlorite, calcium hydroxide was placed as intracanal medication for 14 days. Bleeding was induced by overinstrumenting the periapical tissues with a #25 K-file, and a bioceramic material was placed over the blood clot, followed by a composite resin coronal seal. At the 4-year follow-up, the patient was asymptomatic, with complete bone plate formation and no periradicular lesion or root resorption, although no hard tissue formation or changes in root canal morphology were observed.
本病例报告描述了使用再生性牙髓治疗方法成功治疗一颗根尖开放且患有慢性根尖脓肿的成熟前牙。一名36岁男性，10岁时曾有11号牙外伤史，现表现为牙根发育不全及无症状性慢性根尖脓肿。锥形束断层扫描显示根尖周病变伴有颊侧骨板缺失。使用K型锉进行生物力学预备并用1%次氯酸钠冲洗后，放置氢氧化钙作为根管内药物14天。用#25 K锉过度预备根尖周组织诱导出血，在血凝块上放置生物陶瓷材料，随后进行复合树脂冠部封闭。在4年随访时，患者无症状，骨板完全形成，无根尖周病变或牙根吸收，尽管未观察到硬组织形成或根管形态改变。
