Is the trend to publish reviews and clinical trials related to the journal impact factor? Analysis in dentistry field

A bibliometric investigation of the journals that were repeatedly suppressed from Clarivate's Journal Citation Reports

Journals indexed by Clarivate are temporarily suppressed from the Journal Citation Reports (JCR) if their Journal Impact Factor (JIF) scores are distorted through excessive self-citations or citation stacking with other journals. This paper reports the results of a bibliometric investigation that covers the 18 journals that were suppressed three or more times from the JCR. Results indicate that these 18 journals were repeatedly and exclusively suppressed for being excessive self-citers. Together, these 18 journals totaled 65 suppressions. Two of these 18 journals have lost the status of a JIF-carrying journal. One has changed its title to start as a new. Of the 16 journals that are still included in the JCR, 12 (four) have significantly (slightly) reduced their self-citation rates. Two of these journals are, however, experiencing what the author calls a cycle of suppression. Upon further examination, it turned out that one of these 18 journals is currently using JIF boosting stratagems not yet banished by Clarivate.

Root Canal Disinfection Articles with the Highest Relative Citation Ratios. A Bibliometric Analysis from 1990 to 2019

The relative citation rate (RCR) is a normalized article-level metric useful to assess the impact of research articles. The objective of this bibliometric study is to identify and analyze, in root canal disinfection, the 100 articles having the highest RCRs in the period 1990–2019, then compare them with the top 100 articles most cited. A cross-sectional study was performed, and the search strategy ((Disinfection AND root canal) AND ((“1990/01/01”[Date-Publication]: “2019/12/31”[Date-Publication]))) relied on PubMed (n = 4294 documents), and article data were downloaded from the iCite database. The 100 articles with the highest RCRs and the top 100 cited were selected and evaluated in bibliometric terms. Among the 100 articles with the highest RCRs, there were no differences in the three decades for RCRs values, but there were in citations, being 2000–2009 the most cited. The USA was the predominant country (n = 30), followed by Brazil (n = 14). The most frequent study designs were reviews (n = 27) and in vitro (n = 25) and ex vivo (n = 24) studies. All subfields were well represented, although they varied over time. In 2010–2019, regenerative procedures and irrigation/disinfection techniques were predominant. Considering the RCR’s top 100 articles, 76 were common with the 100 most cited articles. Using the RCR metric allowed us to identify influential articles in root canal disinfection, a research field with topics of significance that fluctuate over time. Compared to citations, RCR reduces the time from publication to detection of its importance for the readership and could be a valid alternative to citation counts.