Available online 25 November 2022

Author links open overlay panelAbstractStatement of problem

Scientific collaboration provides a suitable strategy for enhancing the exchange of knowledge and technological development. However, the impact of collaboration in oral implantology research between countries and how it has been influenced by the income status of the country has not been previously evaluated.

Purpose

The purpose of this bibliometric analysis was to evaluate how collaboration between countries affected oral implant publications and whether patterns of collaboration differ depending on the country’s income.

Material and methods

Articles were retrieved from 7 well-established journals whose scope included oral implantology at 5 time points (1999, 2004, 2009, 2014, and 2019). Data were extracted, and descriptive, bivariate, and multivariate logistic regression analyses were performed (α=.05).

Results

A total of 1944 articles were included; of which, 27.5% presented collaboration between countries. In 2009, 2014, and 2019, collaboration between countries was more likely to occur than at previous time points (P≤.005). Corresponding authors with a higher h-index (P<.05) and authors from Europe and North America (P<.001) were more likely to establish international connections. The possibility of collaboration between countries was higher for animal studies (P<.001) and for articles published by Clinical Oral Implants Research (P=.026). Collaborations between high-income and upper-middle– or lower-middle–income countries were more likely to happen in 2014 and 2019 (P<.05), as well as when the number of authors was higher (P=.015), compared with collaboration between high-income countries. With regard to the continent, European articles were less likely to have collaborations with upper-middle– or lower-middle–income countries (P<.001).

Conclusions

The findings revealed that some parameters related to the study, authors, countries, and journals were statistically associated with the presence of collaboration between countries. However, the bibliometric parameters showed different trends when countries of different incomes established collaboration.

Section snippetsMaterial and methods

A hand search was conducted in 7 well-established journals whose scope included oral implant publications with high-impact factors, including Clinical Oral Implants Research (COIR, 2021 impact factor=5.021), Clinical Implant Dentistry and Related Research (4.259), International Journal of Oral & Maxillofacial Implants (2.912), Implant Dentistry (3), Journal of Oral Implantology (1.546), Journal of Prosthetic Dentistry (4.148), and Journal of Clinical Periodontology (7.478). The articles were

Results

A total of 1944 articles were retrieved; of which, 72.5% (n=1409) had authors from a single country, while 27.5% (n=535) had collaborations with other countries. The number of publications showed an increase over the years, and 2014 was the year with the highest number of publications (32.1%) and collaborations among countries (31.3%) (Table 1). Concerning the geographic origins, Europe published the largest number of articles (46.1%), followed by Asia (25.6%), North America (16.4%), South

Discussion

The study hypothesis was accepted, and the findings revealed that the year, corresponding author’s h-index, continent, research topic, study design, and journal of publication were statistically associated with increased collaboration between countries (P<.05). In addition, publication year and number of authors were statistically associated with collaboration between high-income and upper-middle– or lower-middle–income countries compared with collaboration between only high-income countries (P

Conclusion

Based on the findings of this bibliometric analysis, the following conclusions were drawn:

1.

A favorable publishing trend with increasing collaboration between countries through the years was observed.

2.

Corresponding authors with a higher h-index and authors from Europe and North America were more likely to establish international connections.

3.

Animal studies and articles published in the COIR journal were more likely to be a result of successful collaboration with other countries.

4.

In terms of country

References (30)K.P. Acharya et al.Applied research in low-income countries: why and how?

Front Res Metr Anal

(2019)

B.S. Lancho Barrantes et al.Citation flows in the zones of influence of scientific collaborations

J Am Soc Inf Sci Technol

(2012)

J.G. Breugelmans et al.Scientific impact increases when researchers publish in open access and international collaboration: a bibliometric analysis on poverty-related disease papers

PLoS One

(2018)

A. Alonso-Arroyo et al.The funding sources of implantology research in the period 2008-2017: a bibliometric analysis

Clin Implant Dent Relat Res

(2019)

S.M. Beschnidt et al.Implant success and survival rates in daily dental practice: 5-year results of a non-interventional study using CAMLOG SCREW-LINE implants with or without platform-switching abutments

Int J Implant Dent

(2018)

View full text

© 2022 by the Editorial Council for the Journal of Prosthetic Dentistry.