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; Received (May 13, 2015), Review Request(May 14, 2015), Review Result(May 29, 2015) Accepted(June 18, 2015), Published(August 31, 2015) 210-702 Dept. Dental Hygiene, Kangnung-Wonju National Univ., Jibyeon-dong, Gangneung-si, Gangwon-do, Korea email: edelweiss-71@daum.net (Corresponding Author) 614-7140 Dept. Dental Hygiene, Dongeui Univ., Gaya 1-dong, Busanjin-gu, Busan, Korea email: khj1126@deu.ac.kr Oral health status of the cognitive and behavioral brushing oral health problems in some adults Copyright c 2015 HSST 186 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.