In the present study, a total of 369 adult subjects, who 1) visited the K hospital located in Busan city
for general medical checkup from Sep 2014 through Feb 2015 and 2) determined to participate in the
study after providing the information regarding study objective and related activities, was enrolled. A dentist
performed dental examinations and then study subjects provided self-reporting questionnaire. As results, 101
male subjects (27.4%) and 268 female subjects (72.6%) were enrolled for the study. Of subjects, female
subjects who were 50 ~ 59 years old (85 subject; 75.9%), were the most prevalent whilst male subjects,
who were 30 to 39 years old or 60 years old or older, were the most abundant (20 subjects for both;
33.9%). A total of 120 subjects was found to have decay tooth (32.5%), while 236 subjects had restored
tooth (64.0%); further, 318 subjects (86.2%) and 319 subjects (86.4%) had gingival inflammation and
periodontal diseases, respectively. When it comes to association between awareness of dental health and
actual their conditions (i.e., dental health status), it was found that lost tooth and decayed tooth were not
shown in subjects with no sugar consumption or non-smoking. While mild gingival inflammation was found
the most in subjects who either were aware of dental hygiene or smoke. In the association with tooth
brushing methods, there were significant differences in between decay tooth and lost tooth against 1)
frequency of tooth brushing, 2) strength of brushing, and 3) brushing tongue. In addition, the frequency of
tooth brushing, its methods, time, and strength were significantly associated with the gingival inflammation
as well as periodontal diseases.