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Analysis of International Journal of Clinical Preventive Dentistry Research Trends Using Word Network Analysis
Int J Clin Prev Dent 2018;14(3):184-189
Published online September 30, 2018
© 2018 International Journal of Clinical Preventive Dentistry.

Kyung-Hui Moon1, Sun-Joo Yoon1, Hye-sook Kwon2

1Department of Dental Hygiene, Jinju Health College, Jinju, 2Department of Dental Hygiene, Gimcheon University, Gimcheon, Korea
Correspondence to: Sun-Joo Yoon Department of Dental Hygiene, Jinju Health College, 51 Uibyeong-ro, Jinju 52655, Korea. Tel: +82-55-740-1830, Fax: +82-0303-0008-1840, E-mail:
Received August 31, 2018; Revised September 4, 2018; Accepted September 18, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective: The purpose of this study was to analyze the structure of the research trends of the International Journal of Clinical Preventive Dentistry (IJCPD) through analysis of the word network. The keywords of 371 theses from Issue 1 of 2005 to Issue 1 of 2018 in the IJCPD were extracted and used as data.
Methods: The collected data were analyzed using Excel 2016 and Cyram Inc. NetMiner Version 4.4.1. Keyword analysis and centrality analysis were conducted on all IJCPD issues. Also, word network analysis per period was also conducted.
Results: Of the 676 words acquired from the IJCPD the most frequently used word in the 13-year period was ’health’. Further, discussions on ‘caries’, ‘tooth’, ‘halitosis’, and ‘fluoride’ were the most active. In clinical preventive dentistry, the upper degree centrality words were ‘tooth’, ‘caries’, ‘health’, ‘fluoride’, and ‘halitosis.’, and the upper betweenness centrality words were ‘tooth’, ‘health’, ‘caries’, ‘plaque’, ‘halitosis’. Also, the core degree centrality keywords per period was found to be ‘tooth’, ‘caries’ and ‘fluoride’ in period 1; ‘tooth’, ‘health’ and ‘dentifrice’ in period 2; and ‘health’, ‘caries’ and ‘index’ in period 3. 
Conclusion: The most commonly used word in clinical preventive dentistry studies in the IJCPD over a 13-year period was ‘health’ and the centrality word was found to be ‘tooth’. Results of conducting analysis per period showed that studies were gradually expanded to various fields. It is expected that meaningful research from various aspects can be conducted based on the research trend analysis results of IJCPD using word network analysis.
Keywords : word network analysis, International Journal of Clinical Preventive Dentistry (IJCPD), research trend

September 2018, 14 (3)