Journal of Dental Hygiene Science : eISSN 2233-7679

Table 4

Degree Centrality of Core Keywords per Period

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




 Keyword Centrality  Keyword Centrality  Keyword Centrality  Keyword Centrality
 1 Health 0.227 Health 0.242 Health 0.200 Dental 0.235
 2 Dental 0.136 Dental 0.177 Dental 0.176 Health 0.206
 3 Hygiene 0.136 Hygiene 0.113 Oral 0.082 Oral 0.147
 4 Oral 0.136 Oral 0.113 Hygiene 0.059 Hygiene 0.088
 5 Bacterium 0.091 Behavior 0.065 Caries 0.047 Caries 0.059
 6 Growth 0.091 Caries 0.048 Hygienist 0.035 Infection 0.059
 7 Schizandra chinensis Baill 0.091 Infection 0.048 Index 0.035 Life 0.059
 8 Care 0.045 Job 0.048 Job 0.035 Quality 0.059
 9 Caries 0.045 Knowledge 0.048 Model 0.035 Satisfaction 0.059
 10 Competency 0.045 Attitude 0.032 Quality 0.035 Survey 0.059
 11 Control 0.045 Bank 0.032 Radiation 0.035 Agenda 0.029
 12 Education 0.045 Care 0.032 Satisfaction 0.035 Behavior 0.029
 13 Group 0.045 Education 0.032 School 0.035 Biofilms 0.029
 14 Hygienist 0.045 Hygienist 0.032 Student 0.035 Communication 0.029
 15 Infection 0.045 Impact 0.032 Awareness 0.024 Control 0.029
J Dent Hyg Sci 2018;18:380-8 https://doi.org/10.17135/jdhs.2018.18.6.380
© 2018 J Dent Hyg Sci