title: [Clinical observation of 45 cases with radicular cyst treated with non-surgical methods].
abstract: OBJECTIVE
  To observe the clinical effect and the influential factors of non-surgical treatment of radicular cyst.
  
  
  METHODS
  A total of 45 cases with radicular cyst were included from 2002 to 2008. They were treated by non-surgical treatment including decompression of cyst cavity or overfilling of the root canal. All the patients were examined at 3,6 months and 1,2,3 years after treatment. The therapeutic result was analyzed with SPSS15.0 software package for X(2) test.
  
  
  RESULTS
  Of the 45 cases, 22 were cured at a follow-up period of 1-4 years, the cure rate was 48.89%. Seventeen cases were improved, the improvement rate 37.78%, and the total efficiency rate was 86.67%. Six cases failed to the treatment, and the failure rate was 13.33%.
  
  
  CONCLUSIONS
  With decompression of cyst cavities or overfilling of the root canals, non-surgical treatment of radicular cyst is a simple, economical, safe, and effective treatment modality.
authors.affiliation: Stomatological Hospital of Hefei City, Hefei 230001, China. mdfmyy@chinaacc.com
authors.forename: Feng-qin
authors.initials: FQ
authors.lastname: Guo
authors.forename: Xiao-hong
authors.initials: XH
authors.lastname: Ding
mesh_terms: D019299:Decompression, Surgical; D006801:Humans; D011842:Radicular Cyst; D012390:Root Canal Therapy; D016896:Treatment Outcome