title: [The technic and dose evaluation of postoperative (125)I radioactive seeds brachytherapy for malignant tumors of maxilla].
abstract: OBJECTIVE
  To evaluate the technique and effect of treating malignant tumors of maxilla with postoperative brachytherapy by digital model obturators containing (125)I radioactive seeds.
  
  
  METHODS
  Four patients with adnoid cystic carcinomas and two with squamous cell carcinomas in the maxilla were included in this study. All patients accepted (125)I seeds implantation after operation, and wore digital model obturators containing (125)I seeds. The prescription dose was 80 Gy. All patients were followed up every 2 months after treatment.
  
  
  RESULTS
  The total number of seeds used in these six patients was 189, and 105 seeds were contained in obturators. Radioactive seeds and doses distributed very well as designed in all patients. No tumors recurred after follow up of 12-16 months and there were no severe complications.
  
  
  CONCLUSIONS
  It's an effective way to treat malignant tumors with positive excision margin in the maxilla by brachytherapy using digital model obturators which contain (125)I radioactive seeds.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Ming-wei
authors.initials: MW
authors.lastname: Huang
authors.forename: Dai
authors.initials: D
authors.lastname: Tong
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Hong-zhi
authors.initials: HZ
authors.lastname: Zhang
authors.forename: Jian-guo
authors.initials: JG
authors.lastname: Zhang
authors.forename: Guang-yan
authors.initials: GY
authors.lastname: Yu
mesh_terms: D000328:Adult; D000368:Aged; D001918:Brachytherapy / Q000379:methods*; D003528:Carcinoma, Adenoid Cystic / Q000532:radiotherapy; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes / Q000008:administration & dosage / Q000627:therapeutic use; D008297:Male; D008441:Maxillary Neoplasms / Q000532:radiotherapy*; D008875:Middle Aged; D055815:Young Adult
chemical_list: D007457:Iodine Radioisotopes