• Asian Pacific Journal of Cancer Prevention
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• v.14 no.11
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• pp.6657-6662
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• 2013

Background: The objective of this study was to investigate antioxidant and anti-inflammatory activity of cabbage phytochemicals. Materials and Methods: Color coordinates were evaluated by colorimetry, and the antioxidant and anti-inflammatory activities were analyzed by spectrophotometer for some common cabbage varieties. Results: Red heads had the highest total antioxidant contents followed by Savoy, Chinese and green heads. The Chinese variety had the highest ABTS (2,2-azino-di-(3-ethylbenzthiazoline-sulfonic acid) antioxidant activity, was 5.72 ${\mu}mol$ TE/g fw (Trolox equivalent). The green variety had the highest DPPH (free radical scavenging activity) antioxidant activity, which was 91.2 ${\mu}mol$ TE/g fw. The red variety had the highest FRAP (ferric reducing antioxidant power) antioxidant activity, which was 80.8 ${\mu}mol$ TE/g fw. The total phenol amounts were 17.2-32.6 mM trolox equivalent antioxidant capacity (TEAC) and the total flavonoid amounts were 40.0-74.2 mg quercetin per gram. Methanolic extracts of different cabbage heads showed different anti-inflammatory activity values. Chinese, Savoy and green heads had the highest anti-inflammatory activity, while red heads had the lowest. Conclusions: The results suggest that these varieties of cabbage heads could contribute as sources of important antioxidant and anti-inflammatory related to the prevention of chronic diseases associated to oxidative stress, such as in cancer and coronary artery disease.

• Women's Health Nursing
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• v.20 no.3
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• pp.215-224
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• 2014

Purpose: The study was to survey personal hygiene practice related to genito-urinary tract and menstrual hygiene management in female adolescents in order to obtain basic information for health education. Methods: With a descriptive survey design, 389 adolescents were recruited via convenience sampling in Korea. Survey instrument was the feminine and menstrual hygiene practice and perception of vaginal douching. Data were collected from a self-administered structured questionnaire. Results: Mean age of adolescents was 16.09 and menarche was at 13.21. While washing hands after urination/defecation was highly performed, wipe front to back and wash with soap and water were reported as being not well done. Twenty-eight percent reported douching habit. More positive beliefs about douching were reported by adolescents who practiced douching. Menstrual hygiene management was very appropriate with changing sanitary pads regularly with hand washing; but less performed for limiting bathing activity during menstrual periods and washing hands after activity of genito-urinary area. Conclusion: Some adolescents practiced inadequate hygiene practices especially for body cleansing during menstrual period and vaginal douching. It is important to develop and implement school health education programs on feminine and personal hygiene for adolescents to help them perform adequate health behaviors.

• Journal of Korean society of Dental Hygiene
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• v.13 no.3
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• pp.517-523
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• 2013

Objectives : The aim of the study is to investigate the antimicrobial activity of jaborandi and sorbitol to various oral microbes. Methods : Jaborandi leaves contain pilocarpine. The conditions for extraction were optimized on the basis of substances, temperatures and pHs. Total pilocarpine content after extraction was analyzed by HPLC. The herbal antimicrobial activity of jaborandi and sorbitol were evaluated for oral microbes containing ATCC 25175 S. mutans, ATCC 13419 S. salivarius, ATCC 6249 S. mitis, ATCC 33398 S. equi, ATCC 29213 S. aureus, ATCC 14053 C. albicans. Results : The optimum conditions for highest yielding extraction were pilocarpine content after boiling at $100^{\circ}C$ for 1 hour at pH 3. The level of total pilocarpine content was analyzed at 833 mg/kg by HPLC. The most effective antimicrobial activity was obtained by combination of pilocarpine and sorbitol rather than pilocarpine, menthol and sorbitol, respectively. Conclusions : This results supported the preventive oral health care using safe and convenient jaborandi herb.

• Journal of Korean society of Dental Hygiene
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• v.17 no.4
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• pp.647-656
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• 2017

Objectives: The purpose of the study was to examine the correlation between leisure activity recognition and campus life satisfaction of dental hygiene students in the Chungnam area. Methods: A self-reported questionnaire was completed by 494 dental hygiene students at eight universities from January 11 to January 29, 2016. The questionnaire used a five point Likert scale to measure campus life satisfaction and perception towards leisure activities. Data were analyzed with descriptive statistics of variables, independent t-test, one way ANOVA, and Pearson's correlation coefficient analysis. Results: The mean for satisfaction with campus life and perception towards leisure activities were 3.15 and 3.73, respectively, wich were both higher than the average. The campus life satisfaction of facilities, study, life showed positive correlations with leisure activity recognition. Conclusions: Perception towards leisure activities was associated with satisfaction with campus life. These results suggest that university authorities should encourage students to use active leisure time such as by establishing leisure programs and club activities in order to improve students' awareness of leisure activities and encourage them to make the most of university life.

• Journal of Food Hygiene and Safety
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• v.11 no.3
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• pp.209-214
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• 1996

Irradiated and non-irradiated Korean medicinal herbs were extracted by water and 70% ethanol. Antimicrobial activity of these extracts were invesigated against selected food hygiene microoganisms. The ethanol extracts of the non-irradiated Agrimonia pilosa ledebour japonica Nakai, Curcuma longa Linne and Angelica gigas Nakai were completely inhibited on four species of bacteria, such as Vibrio parahaemolyticus, Clostridium perfringenes, Bacillus subtilis and Staphylococcus aureus. Also, above four strains did not have antibacterial activity in the water-ethanol mixtures. Futhermore, the ehtanol extracts of the non-irradiated Agimonia pilosa ledebour Japonica Nakai, Curcuma Iedoaria Roscoe, Curcuma longa Linne and Scutellaria baikalensis George were shown inhibitory effects against Aspergillus flavus and Pen icillium islandicum. And the water extract of Scutellaria baikalensis George was the same effect to these molds. Essentially the same results were observed when samples irradiated at a dose of 10 kGy.

• Journal of Korean society of Dental Hygiene
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• v.3 no.2
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• pp.197-208
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• 2003

This study was implemented for 84 students of dental hygiene to show the correlation between dental caries experience and improved caries activity test. Dental caries experience for the sample groups was examined and stimulative saliva secreted for 5 minutes was collected into the tube to check saliva secretion rate. Dentocult LB test was executed to observe Lactobacilli colonies after 96 hour cultivation of culture slides moistened with stimulative saliva. Dentocult SM test(screening strip, site strip) was done to measure SM colonies distribution after 48 hour cultivation of culture strips applied with collected saliva and dental plaque respectively, and salivary buffering capacity was checked by means of Dentobuff strip kit. Following conclusions are obtained after examining the relation between Dentocult LB, Dentocult SM, Dentobuff strip test results and DMFT index, salivary secretion rate. 1. Showed no significant difference between Dentocult LB test results and DMFT index, salivary secretion rate. 2. Showed no significant difference between Dentocult SM(screening strip) test results and DMFT index, salivary secretion rate. 3. Showed significant difference between Dentocult SM(site strip) test results and DMFT index(pE0.05), but showed no significant difference between Dentocult SM(site strip) test results and salivary secretion rate. 4. Showed no significant difference between Dentobuff strip test results and DMFT index, but showed a very wide difference between Dentobuff strip test results and salivary secretion rate(pE0.01).

• Journal of Korean society of Dental Hygiene
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• v.5 no.1
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• pp.123-130
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• 2005

This study was executed to evaluate the effects of natural herbal medicine extract on the antimicrobial activity and the artificial plaque formation. Schisandra chinensis, Sophora flavescens, Dryopteris crassirhizoma and Aristolochia contorta were extracted by 80% MeOH respectively and each concentration(5mg, 10mg, 20mg) of herbal medicine extract was tested to show the antimicrobial activity against S. mutans. To show the inhibition effect of herbal medicine extract on the artificial dental plaque formation each extract of 0.4% concentration was added into M 17 broth and inoculated with $5.0{\times}10^6$ of S. mutans. After 24 hour incubation each weight of artificial dental plaque was measured and compared with each other. Results obtained are as follows: 1. Dryopteris crassirhizoma showed very intense antimicrobial effect but Schisandra chinensis, Sophora flavescens and Aristolochia contorta showed a little difference against control. 2. Regarding artificial plaque formation inhibiting activity by each herbal extract at 0.4% concentration, Dryopteris crassirhizoma showed the perfect inhibition effect. Schisandra chinensis and Aristolochia contorta followed in order but Sophora flavescens showed the worst value. In conclusion, Dryopteris crassirhizoma showed strong antimicrobial effect against S. mutans and significant inhibiting effect on the artificial dental plaque formation.

• Journal of Korean society of Dental Hygiene
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• v.23 no.6
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• pp.459-466
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• 2023

Objectives: The purpose of this study was to evaluate the physical properties and antibacterial activity of denture base resin with added silver sulfadiazine. Methods: Specimens were made from self-curing denture base resin and silver sulfadiazine as an inorganic antibacterial agent. For physical evaluation of the specimens, surface roughness, surface hardness, and contact angle were measured. Bacterial growth was assessed by optical densityat 600 nm (OD600) and colony forming units (CFU) measurements to confirm antibacterial activity. Results: There was no significant difference in surface roughness, surface hardness, and contact angle in the experimental group containing silver sulfadiazine compared to the control group. In contrast, the experimental group showed a significant decrease in antibacterial activity compared to the control group in terms of OD value. Analysis of CFU confirmed a significant decrease in colonies in the experimental group compared to the control group. Conclusions: Denture base resin containing silver sulfadiazine, an inorganic antibacterial agent, exhibited enhanced antibacterial activity without physical changes. In conclusion, the use of denture base resin containing inorganic antibacterial agents may be expected in the future.

• Journal of Korean society of Dental Hygiene
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• v.13 no.3
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• pp.509-515
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• 2013

Objectives : This study was performed to evaluate the salivary secretion, salivary pH and cariogenic activity using unstimulated whole saliva in patients with hematologic malignancy. Methods : Nineteen patients (9 male, 10 female) who had hematologic malignancy and were treated with chemotherapy or bone marrow transplantation, and nineteen normal volunteers (7 male, 12 female) as control group were included. The mean age of patients group and control group was 45.1 and 46.7 years, respectively. Patients group was examined salivary secretion, salivary pH, and cariogenic activity using unstimulated whole saliva and was compared with control group. Results : In comparison with control group, salivary secretion, salivary pH and salivary buffer capacity were significantly lower in patients with hematologic malignancy (p<0.01). Both cariogenic activity(p<0.01) and the number of Lactobacilli(p<0.05) are higher in patients group than control group. Conclusions : These results suggest that the unstimulated whole salivary secretion, pH and buffer capacity were lower in patients with hematologic malignancy than control group. Cariogenic activity is higher in patients with hematologic malignancy than control group. Such salivary factor and cariogenic activity can increase the possibility of induction of dental caries.

• Journal of Korean society of Dental Hygiene
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• v.16 no.6
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• pp.863-877
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• 2016

The study aimed to investigate the influence of perceived patient safety culture on patient safety management activity in the dental hygienists. Methods: A self-reported questionnaire was completed by 292 dental hygienists in Seoul, Incheon and Gyeonggido from March 1 to April 8, 2016. The questionnaire consisted of general characteristics of the subjects (9 items), patient safety culture (44 items), and patient safety management activity (25 items) by Likert 5 point scale. Data were analyzed by t test, one way ANOVA, stepwise multiple regression test, and post-hoc Tukey test using SPSS 18.0 program. Results: The perceived patient safety culture was 3.50 on average. Entire organization was the highest score (3.68) and followed the communication process (3.55), the environment of work unit (3.47), the attitude of supervisor/manager (3.45), and the frequency of events reported (2.98). The average of patient safety management activity was 3.71. As for the factors of patient safety culture on patient safety management activity, communication process was the most influential factor (${\beta}=0.268$), and followed the entire organization (${\beta}=0.265$), the environment of work unit (${\beta} =0.166$), the frequency of events reported (${\beta}=0.104$), and among the control variables. Work place proved to be the only significant variable. Conclusions: In order to promote patient safety management activity of dental institutions, the patient safety culture should be created and established. The influence of communication process and patient safety culture at entire organization level was huge. So the environment of work unit and the perceived patient safety culture in the process of reported events were influencing factors. The strategy for patient safety management activity should be considered because of low level of perceived patient safety culture.