Journal of Dental Hygiene Science : eISSN 2233-7679

Table 5

Betweenness Centrality of Core Keywords per Period

No. Period 1 (2001~2005) Period 2 (2006~2010) Period 3 (2011~2015) Period 4 (2016~2018)




 Keyword Betweenness centrality  Keyword Betweenness centrality  Keyword Betweenness centrality  Keyword Betweenness centrality
1 Oral 029.281 Dental 0.205 Health 0.258 Oral 0.364
2 Health 0.199 Health 0.169 Dental 0.246 Health 0.353
3 Hygiene 0.186 Hygiene 0.112 Hygiene 0.174 Dental 0.333
4 Bacterium 0.143 Hygienist 0.054 Oral 0.123 Hygiene 0.312
5 Dental 0.108 Oral 0.053 Student 0.065 Quality 0.123
6 Schizandra chinensis Baill 0.104 Job 0.038 Caries 0.059 Life 0.086
7 Growth 0.056 Student 0.037 Quality 0.049 Caries 0.045
8 Care 0.000 Infection 0.025 Model 0.044 Infection 0.045
9 Caries 0.000 Impact 0.019 Hygienist 0.039 Satisfaction 0.045
10 Competency 0.000 School 0.019 Education 0.037 Survey 0.045
J Dent Hyg Sci 2018;18:380-8 https://doi.org/10.17135/jdhs.2018.18.6.380
© 2018 J Dent Hyg Sci