title: [Survey of the current situation on clinical application of root canal treatments in Zhejiang province].
abstract: OBJECTIVE
  To investigate the present situation of root canal treatment (RCT) applied by the endodontists in the major hospitals of Zhejiang province.
  
  
  METHODS
  Dentists in different hospitals were asked to fill in the questionnaire, which included the methods and factors of the first-choice treatment of endodontic diseases, instruments and materials used in RCT. The data were analysed by descriptive analysis and Mann-Whiteney U test using SPSS12.0 software package.
  
  
  RESULTS
  410 effective questionnaires from 76 different hospitals were received. The reply rate was 91.1%. RCT was performed as the first-choice of endodontic treatment in 93.5% of total 410 dentists. And 90.2% of them used hand instruments to prepare root canals. Push-pull or stepback technique was widely used in anterior or posterior root canal preparation. Hydrogen peroxide was adopted to irrigate root canal by the majority of respondents (88.3%). Nearly half of the respondents used camphorate phenol as intracanal medicine. 77.6% of them adopted cold lateral condensation technique and 32.7% of them used gutta-percha mixing with iodoform for canal obturation. 74.6% of them applied one-visit endodontic treatment sometime and prescribed antibiotics or hormone to the patients after RCT.
  
  
  CONCLUSIONS
  Although RCT has been widely used in endodontic diseases by dentists in Zhejiang province, some advanced techniques and new materials still need to be adopted and refined.
authors: Department of Oral Medicine, Affiliated Hospital of Stomatology, Medical College, Zhejiang University, Hangzhou 310006, Zhejiang Province, China. Huic66@hotmail.com
authors: Hui
authors: H
authors: Chen
authors: Hai-Hua
authors: HH
authors: Zhu
authors: Xiu-Yang
authors: XY
authors: Li
authors: Wei
authors: W
authors: Sun
authors: Fan
authors: F
authors: Zhang
mesh_terms: D002681:China; D003786:Dental Pulp Cavity; D006171:Gutta-Percha; D019538:Health Care Surveys; D006801:Humans; D019239:Practice Patterns, Dentists' / Q000706:statistics & numerical data*; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation; D018915:Root Canal Preparation; D012390:Root Canal Therapy / Q000706:statistics & numerical data*
chemical_list: D012387:Root Canal Filling Materials; D006171:Gutta-Percha