title: The trend of quality of publications in endodontic surgery: a 10-year systematic survey of the literature.
abstract: OBJECTIVE
  The aims of the present systematic literature analysis were to evaluate, over a 10-year period, the trend of the proportion of RCT, SR, MA published on endodontic surgery, and to investigate if the impact factor (IF) of the main endodontic Journals correlates with the proportion of RCT, SR, MA they publish.
  
  
  METHODS
  An electronic search of the RCT, SR and MA published on the topic "endodontic surgery" from 2001 to 2010 was performed on Medline and Cochrane CENTRAL database using specific search terms combined with Boolean operators. Endodontic Journals impact factor was retrieved by the Thomson Scientific database. The proportion of each study type over the total number of articles on endodontic surgery published per year was estimated. The correlation between the number of high-evidence level studies published on the main endodontic Journals and the IF of such Journals per year was estimated.
  
  
  RESULTS
  From a total of 900 articles published in 2001-2010 on endodontic surgery, there were 114 studies of high evidence level. A significant increase of the proportion of either RCT, SR and MA over the years was found. A modest to unclear correlation was found between the Journal IF and the number of high-evidence articles published.
  
  
  CONCLUSIONS
  There is a positive trend over the years among researchers in performing studies of good quality in endodontic surgery. The impact factor of endodontic Journals is not consistently influenced by publication of high-evidence level articles.
authors: Università degli Studi di Milano, Department of Biomedical, Surgical and Dental Sciences, Oral Health Research Centre, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
authors: Massimo
authors: M
authors: Del Fabbro
authors: Università degli Studi di Milano, Department of Biomedical, Surgical and Dental Sciences, Oral Implantology Research Centre, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy. Electronic address: stefano.corbella@gmail.com.
authors: Stefano
authors: S
authors: Corbella
authors: Department of Endodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
authors: Igor
authors: I
authors: Tsesis
authors: Università degli Studi di Milano, Department of Biomedical, Surgical and Dental Sciences, Oral Health Research Centre, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
authors: Silvio
authors: S
authors: Taschieri
mesh_terms: D015706:Bibliometrics; D004708:Endodontics / Q000592:standards*; D055094:Evidence-Based Dentistry / Q000592:standards; D006801:Humans; D055811:Journal Impact Factor; D015201:Meta-Analysis as Topic; D010506:Periodicals as Topic; D011643:Publishing / Q000592:standards*; D016032:Randomized Controlled Trials as Topic; D012196:Review Literature as Topic
keywords: Endodontics; Evidence-based dentistry; Journal impact factor