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 Table of Contents  
Year : 2023  |  Volume : 14  |  Issue : 1  |  Page : 1-2

Bibliometric Analysis of Dental Preprints which Published in 2022

1 Department of Endodontology, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam; Tandarts specialisten Verwijspraktijk, Bergen op Zoom, the Netherlands, The Netherlands
2 Independent Research Scientist, Founder and Managing Editor of Dental Hypotheses, Isfahan, Iran
3 Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran

Date of Submission10-Feb-2023
Date of Acceptance28-Feb-2023
Date of Web Publication20-Mar-2023

Correspondence Address:
Jafar Kolahi
Faree 15, Pardis, Shahin Shahr, Isfahan 83179-18981
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/denthyp.denthyp_35_23

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How to cite this article:
Mirmohammadi H, Kolahi J, Khandan A. Bibliometric Analysis of Dental Preprints which Published in 2022. Dent Hypotheses 2023;14:1-2

How to cite this URL:
Mirmohammadi H, Kolahi J, Khandan A. Bibliometric Analysis of Dental Preprints which Published in 2022. Dent Hypotheses [serial online] 2023 [cited 2023 Jun 8];14:1-2. Available from:

The traditional peer-review process is a necessary step to evaluate the quality of a manuscripts before publication. Yet, it is a time-consuming process. Nowadays, preprints play an important role in speeding up and facilitating the transparent dissemination of research findings among scientists before peer-review process.[1],[2],[3] Importance of rapid sharing of life-saving discoveries during disasters and life-threatening disease outbreaks, widely acknowledged among the research community. Rapid growth of preprints sharing during COVID-19 pandemic (19,931 medRxiv and 6491 bioRxiv) has changed the pattern of science broad casting forever.[4]

However, despite a lack of specialized dental preprint server such as DenRxiv,[5] dental researchers are sharing their research outputs on general preprint servers. We aimed to analyze bibliometrics of dental preprints which were published in 2022.

On Feb 18, 2023, bibliometric data of the 2022 dental preprint were obtained from the Dimensions database and analyzed using VOSviewer (, Leiden University’s Centre for Science and Technology Studies).

A total of 1597 records were found. The highest number of published preprints were in the Research Square [Figure 1]. At country level, China published the maximum number of preprints [Figure 1]. At institution level, the Universidade De Sao Paulo (28 preprints), the Sichuan University (24 preprints), and the Peking University (19 preprints) published the highest number of preprints.[6]
Figure 1 Top 10 preprint servers and countries published the most number of dental preprints in 2022.

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Term co-occurrence network analysis based on title and abstract of preprints showed the terms Child, Periodontitis, and Cell were the most popular terms [Figure 2]. Co-citations network analysis showed the Journal of Endodontics, the Journal of Dental Research, and the American Journal of Orthodontics and Dentofacial Orthopedics had the most influence on the network at the journal level.[6]
Figure 2 Hot topics among dental preprints which published in 2022.

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However, publication of preprints is growing fast among dental research community. Establishment of a specialized dental preprint server such as DenRxiv to improve quality check before publication of dental preprints is greatly encouraged.

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Conflicts of interest

There are no conflicts of interest.

  References Top

Berg J. Preprint ecosystems. Science 2017;357:1331.  Back to cited text no. 1
Flanagin A, Fontanarosa PB, Bauchner H. Preprints involving S medical research—do the benefits outweigh the challenges? JAMA. 2020;324:1840-43.  Back to cited text no. 2
Armstrong JW. The preprint. Nature 2018;560:404.  Back to cited text no. 3
Watson C. Rise of the preprint: how rapid data sharing during COVID-19 has changed science forever. Nat Med 2022;28:2-5.  Back to cited text no. 4
Kolahi J, Dunning D, Rossomando E, Bidram E, Khazaei S. Preprints in dental science: dentrxiv as a strategy to bring dental research into the information age. Dent Hypotheses 2019;10:1-3.  Back to cited text no. 5
  [Full text]  
Kolahi J. Supplementary figures of editorial of the Dental Hypotheses (ISSN: 21558213) entitled “Bibliometric analysis of dental preprints which published in 2022”(Issue 1, Vol 14, 2023). figshare; 2023.  Back to cited text no. 6


  [Figure 1], [Figure 2]


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