title: Endoscopic modified medial maxillectomy for odontogenic cysts and tumours.
abstract: Odontogenic maxillary cysts and tumours originate from the tooth root and have traditionally been treated through an intraoral approach. Here, we report the efficacy and utility of endoscopic modified medial maxillectomy (EMMM) for the treatment of odontogenic maxillary cysts and a tumour.
  
  
  
  We undertook EMMM under general anaesthesia in six patients: four had radicular cysts, one had a dentigerous cyst, and one had a keratocystic odontogenic tumour.
  
  
  
  The cysts and tumours were completely excised and the inferior turbinate and nasolacrimal duct were preserved in all patients. There were no peri- or postoperative complications, and no incidences of recurrence.
  
  
  
  Endoscopic modified medial maxillectomy appears to be an effective and safe technique for treating odontogenic cysts and tumours.
authors.forename: Tsugihama
authors.initials: T
authors.lastname: Nakayama
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Otori
authors.forename: Daiya
authors.initials: D
authors.lastname: Asaka
authors.forename: Tetsushi
authors.initials: T
authors.lastname: Okushi
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Haruna
mesh_terms: D003803:Dentigerous Cyst / Q000473:pathology / Q000503:physiopathology*; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D009301:Nasolacrimal Duct / Q000503:physiopathology*; D009364:Neoplasm Recurrence, Local / Q000503:physiopathology*; D009807:Odontogenic Cysts / Q000503:physiopathology*; D014420:Turbinates / Q000502:physiology*