title: Bibliometric analysis of scientific articles published in Brazilian and international orthodontic journals over a 10-year period.
abstract: OBJECTIVE
  This study aimed at describing the profiles of Brazilian and international studies published in orthodontic journals.
  
  
  METHODS
  The sample comprised 635 articles selected from two scientific journals, i.e., Dental Press Journal of Orthodontics and American Journal of Orthodontics and Dentofacial Orthopedics, which were analyzed at three different intervals over a 10-year period (1999 - 2004 - 2009). Articles were described in terms of knowledge domain, study design, and country of origin (or state of origin for Brazilian papers).
  
  
  RESULTS
  The most frequent study designs adopted in international studies were cohort (23.9%) and cross-sectional (21.7%) designs. Among Brazilian papers, cross-sectional studies (28.9%) and literature reviews (24.6%) showed greater frequency. The topics most often investigated in international articles were dental materials (17%) and treatment devices (12.4%), with the latter topic being addressed by 16% of the Brazilian publications, followed by malocclusion, with 12.6%. In all cases, the most frequent countries of origin coincided with the countries of origin of each journal.
  
  
  CONCLUSIONS
  The majority of the studies analyzed featured a low level of scientific evidence. Moreover, the findings showed that journals tend to publish studies produced in their own country of origin, and that there are marked discrepancies in the number of papers published by different Brazilian states.
authors.forename: Neudí Antonio
authors.initials: NA
authors.lastname: Primo
authors.forename: Vivian Bertoglio
authors.initials: VB
authors.lastname: Gazzola
authors.forename: Bruno Tochetto
authors.initials: BT
authors.lastname: Primo
authors.forename: Maximiano Ferreira
authors.initials: MF
authors.lastname: Tovo
authors.forename: Italo Medeiros
authors.initials: IM
authors.lastname: Faraco
mesh_terms: D015706:Bibliometrics; D001938:Brazil; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D003764:Dental Materials; D018865:Dental Research / Q000706:statistics & numerical data; D006801:Humans; D008310:Malocclusion / Q000628:therapy; D009967:Orthodontic Appliances; D009970:Orthodontics / Q000706:statistics & numerical data; D010506:Periodicals as Topic / Q000706:statistics & numerical data; D012107:Research Design / Q000706:statistics & numerical data; D012196:Review Literature as Topic; D014481:United States
chemical_list: D003764:Dental Materials
keywords: Bibliometrics; Dental research; Orthodontics; Study characteristics