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In order to compare oral health knowledge of nursing department students, who would be health education teachers in charge of oral health management at school in the future, with that of students belonging to dental hygiene department, this study collectively distributed questionnaires to first, second and third-year students in nursing and dental hygiene departments of G University located at Jeollanam-do, Korea. After the students answered the questionnaires by themselves, a total of 680 questionnaires were retrieved and analyzed. Results are as follows. 1. Concerning the age of the subjects, most of them were at the age of ‘21~25 or less.’ And, regarding their departments, ‘dental hygiene department’ and ‘nursing department’ accounted for 51.9% and 48.1%, respectively. And, concerning their grades, most of them were ‘first-year’ students. Finally, regarding their grades, most of them showed points of ‘3.5~4.0 or less.’ 2. Concerning their interest in oral health, most of the students in ‘dental hygiene department’ responded to the question with ‘a high degree of interest’, and most of the students belonging to the ‘nursing department’ replied to the same question with ‘a normal degree of interest’, which showed a statistically significant difference (p<0.05). And, oral health conditions according to their departments did not show any significant difference (p>0.05). 3. Concerning the subjects’ toothbrushing frequency a day, the portion of the students replied with ‘three times’ was higher in the dental hygiene department compared with the result found in the students in the nursing department, which showed a statistically significant difference (p<0.05). Regarding their toothbrushing duration, 55.5% of students in the ‘dental hygiene department’ showed ‘three minutes or more’, and 60.9% of students in the ‘nursing department’ said ‘two minutes or less’, which revealed a significant difference. And, concerning their toothbrushing methods, the portion of the students who said that they would ‘brush their teeth by revolving the toothbrush’ was higher in the dental hygiene department, compared with the nursing department, which showed a significant difference (p<0.05). And, regarding the use of oral health supplementary products, students in the dental hygiene department showed higher results than those in the nursing department, which showed a significant difference. And, with regard to their experience of scaling, students in the dental hygiene department also showed higher results than those in the nursing department, which showed a statistically significant difference (p<0.05). 4. Concerning pain during a visit to a dental clinic, students in the ‘dental hygiene department’ described their pain as sufferable, comfortable, and extreme in the order of its severity, and students in the ‘nursing department’ replied sufferable, extreme, and comfortable in the same order, which showed a statistically significant difference (p<0.05). And, regarding their feelings during dental examination, the portion of students that said they were ‘very afraid’ or ‘somewhat worried’ was higher in the nursing department compared with the dental hygiene department (p<0.05). 5. Concerning dental subjective symptoms according to their departments, students in the ‘dental hygiene department’ and those in the ‘nursing department’ showed 1.30 and 1.66, respectively. This indicated that students in the latter department had more subjective symptoms, which showed a statistically significant difference (p<0.05). And, regarding dental subjective symptoms according to students‘ age, grade, and school record, there was not any significant difference (p>0.05). 6. As a student’s age increased, his or her degree of oral health knowledge also increased, which showed a statistically significant difference (p<0.05). Regarding their departments, students in the ‘dental hygiene department’ showed more knowledge of oral health than those in the ‘nursing department’, which showed a significant difference. And, concerning their grades, oral health knowledge of ‘second-year students’ was highest as 38.11, which showed a statistically significant difference (p<0.05). Finally, regarding their school results, students whose results were ‘3.0~3.5 or less’ showed the highest degree of oral health knowledge, which indicated a significant difference (p<0.05). 7. There was a positive correlation between the toothbrushing duration and its frequency, and there was a negative correlation between the use of oral health supplementary products, toothbrushing frequency a day, and its duration (p<0.01). And, scaling experience had a negative correlation with toothbrushing frequency a day and its duration, and had a positive correlation with the use of oral health supplementary products and dental caries treatment (p<0.01). Moreover, oral health knowledge had a positive correlation with toothbrushing duration, and had a negative correlation with the use of oral health supplementary products and scaling experience (p<0.01). 8. The variable which had the biggest impact was a student’s department. And, the data of this study indicated that students in the dental hygiene department had more knowledge of dental health than those in the nursing department. As they had more subjective symptoms, longer toothbrushing duration, higher ages, more dental treatments, and less pain during dental examination, it turned out that they had more knowledge of dental health. In summary, it has been demonstrated that students in the dental hygiene department showed better results in every aspect, including interest in oral health, oral health management realities, and oral health knowledge, than those in the nursing department. This indicates that dental hygiene department graduates are more suitable for oral health education than nursing department students, who would be health education teachers in charge of oral health management at school. On the other hand, regarding nursing department students, who would be responsible for oral health education at school in the future, ways to enhance their interest in oral health, abilities to manage oral health, and knowledge of oral health are required.

This study was performed to identify correlation between smoking habits and decayed teeth and to evaluate the multitude of influence of each factor by comparing data of the 2nd year of the 4th term and the 1st year of the 5th term of National Health and Nutrition Survey. In the raw data in 2008 and 2010, 4,607 subjects from the 2nd year of the 4th term and 4,331 subjects from the 1st year of the 5th term were selected. The inclusion criteria were adults over 19, those who finished examination and both surveys (Health and Nutrition) and those who did not have any missing values in analysis variables. Using SPSS ver 18.0, descriptive statistical analysis, cross‐sectional analysis and logistic regression analysis were performed. The analysis results can be summarized as follows. 1. In demographical analysis of the subjects, it was found that there were more females than males in both samples (2008 and 2010), mean age was 47.16 and 48.14 respectively, and high school graduates are the highest ratio in both samples. In residential area, Kyunggi area was the highest ratio and according to marital status, there were more married subjects than singles. No difference was found in income. In eating habits, number of dining out and frequency of carbohydrate and beverage intake were higher in the subjects in 2010. In health related behaviors, drinking habits, physical activities, whether to take physical examination, and subjective health were higher in 2008 than in 2010. In oral health, regarding the frequency of tooth brushing twice a day was the highest answer in both 2008 and 2010 and more than 70% of subjects did not use auxiliary oral hygiene products. In incomplete treatment and subjective oral health, subjects in 2010 showed higher points and in oral examination, subjects in 2008 showed higher value. In the analysis of difference according to smoking by year, non‐smokers showed higher value as 56.0% in 2008, and 56.5% in 2010 and in the analysis of dental caries of subjects by year, 2008 subjects showed higher value as 91.0% in 2008, and 89.2% in 2010. 2. In the factors influencing smoking, gender, age, income, drinking habits, carbohydrate intake frequency, beverage intake frequency, health examination, subjective health, and frequency of dining out showed statistically significant difference in 2008, while in 2010 gender, drinking habits, beverage intake frequency, subjective health status, frequency of brushing and subjective oral health showed statistically significant difference. In factors influencing dental caries, gender, subjective oral health, incomplete treatment and oral examination showed statistically significant difference in 2008, while gender, income, subjective oral health and use of auxiliary oral hygiene products were statistically significant factors in 2010. 3. In the analysis by year, 92.0% of non‐smokers and 89.3% of smokers had dental caries in 2008, while 91.7% of non‐smokers and 85.9% of smokers in 2010. It shows there were more dental caries among non‐smokers both in 2008 and 2010 and dental caries were more prevalent among non‐ smokers, and that smoking did not make any effects on dental caries in both 2008 and 2010.

Studies in this research analyzes the variance of choice in profession between prospective graduating students and dental hygienists practicing in the field. The constructed survey includes questions to indicate job selection based on general responsibilities of the profession, perception of practicing as a dental hygienist, attitude towards the job in relation to individual values, and the working conditions involved. 1. This was a multi-step process that first studied the differences between the characteristics of students and professionals and what they wanted through the job. 2. The second part of the survey evaluated the level of depth in awareness of the job and its entry. 3. The third step assessed the difference in knowledge of the working conditions and the entailed responsibilities. 4. The last part of the survey investigated the distinction in personal values between students and professionals.