关键词: 放射粒子近距离治疗, 3D打印, 口腔颌面部恶性肿瘤

Abstract: With the development of imaging and digital technology，brachytherapy for oral and maxillofacial malignant tumors with radioactive particles has become an effective supplement to surgery and traditional radiotherapy. 3D printing guide plate-guided implantation of radioactive particles has become the most widely used method in the treatment of oral and maxillofacial malignant tumors due to its good target conformability，precise and controllable treatment dose，low side effects and minimal invasion.

Key words: brachytherapy with rodioactive particles, 3D printing, oral and maxillofacial malignant tumors