Citation classics in periodontology:acontrolled study
: Blackwell Synergy
Aim: The aims of this study were to identify the most cited articles in Periodontology
published from January 1990 to March 2005; and to analyse the differences between
citation Classics and less cited articles.
Material and Methods: The search was carried out in four international periodontal
journals: Journal of Periodontology, Journal of Clinical Periodontology, International
Journal of Periodontics and Restorative Dentistry and Journal of Periodontal
Research. The Classics, that are articles cited at least 100 times, were identified using
the Science Citation Index database. From every issue of the journals that contained a
Classic, another article was randomly selected and used as a Control.
Results: Fifty-five Classics and 55 Controls were identified. Classic articles were
longer, used more images, had more authors, and contained more self-references than
Moreover Classics had on the average a bigger sample size, often dealt with
etiopathogenesis and prognosis, but were rarely controlled or randomized studies.
Conclusions: Classic articles play an instructive role, but are often non-Controlled
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