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2010, Vol.10, No.3

  • 1.

    The percentage of adolescents who brush their teeth after lunch and its related factors

    김경원 | 2010, 10(3) | pp.441~448 | number of Cited : 12
    Abstract PDF
    Object: This study was conducted in order to investigate the percentage of adolescents who brush their teeth after lunch and its related factors using raw data from the Fourth Korea National Health and Nutrition Examination Survey. Method: In order to extract adolescents to be subjected to this study, 300 adolescents between the age of 12 to 18 who are currently attending junior and senior high school were chosen out of a total of 4,594 subjects. The results from the health surveys and the oral checkup results from the medical examination conducted on these adolescents were analyzed. Results 1. The percentage of adolescents who brush their teeth after lunch was 33.9%. 2. The percentage of the adolescents who brush their teeth after lunch differed significantly according to the gender (p<0.001), age (p<0.05), the time of their recent visit to the dentist (p<0.05), and whether they had suffered from permanent tooth caries (p<0.05). 3. The factors which affect whether the adolescents brush their teeth after lunch was their gender, the total number of the times they brush their teeth per day, and their age. Conclusion: Effective oral health education methods should be reinforced in order to increase the percentage of the adolescents who brush their teeth after lunch.
  • 2.

    Recognition and performance of preschool teachers on children's oral health in Seoul

    Sun-Mi Lee | Lim Mi Hee | Jung Jae Yeon and 2other persons | 2010, 10(3) | pp.449~457 | number of Cited : 13
    Abstract PDF
    Objective: This study was performed to investigate the recognition of the educators in preschool education institutions on children's oral health promotion. Methods: The subjects of this study included 918 preschool teachers who have been performing an oral health education program for children at preschool centers in Seoul. For this study, the survey was conducted from September 2008 to November 2008 through a questionnaire. Results: It has been found that 58.5% of the given preschool institutions have implemented an oral health promotion program and 99.1% of the respondents recognized the importance of the oral health. 53.9% of the respondents used sweets as a reward for good deeds. Regarding the behaviors of oral health promotion, the daily tooth-brushing and the implementation of a regular oral check-up accounted for 69.0% and 59.5% respectively. The subjects recognized that they have responsibility for the tooth-brushing instruction(91.6%) and provision of an oral inspection(78.3%). It has been also found that the case of performing the oral health program with older age and higher work experiences was significantly high(p<0.05). Conclusion: The recognition and performance of kindergarten teachers on children's oral health affects daily life and healthful living habits of children. Therefore oral health education program for the teachers has to be developed.
  • 3.

    A study on personal protection equipment for Infection control at dental offices

    우승희 | 주온주 | 2010, 10(3) | pp.459~464 | number of Cited : 12
    Abstract PDF
    Object: The purpose of this study was to minimize cross infection that can take place within dental office, to make dental workers recognize importance of infection management, and to improve dental-care environment that is exposed to infection. Methods: It conducted the self-reported questionnaire survey on the practice of wearing PPE(personal protective equipment) from April 1, 2008 to May 30 targeting 180 dental workers who are working for dental offices where are located in Jeonnam region. Results: 1. As for research subjects' general characteristics, age was the largest in under 29 years old with 75.0%. It was surveyed to be large in over 5 years(56.1%) for working career, in a city(83.3%) for working region, and in having licence of dental hygienist(75.0%). 2. As a result of surveying the practice of wearing PPE, wearing mask given dental care was surveyed to have the highest practice level with 75.6%. Wearing protective glasses showed the lowest practice ratio with 23.3%. 3. As a result of surveying the difference in the practice of wearing PPE according to general characteristics, the difference according to the working region was surveyed to be the greatest. Conclusion: As the above result, the education of infection management for dental workers needs to be performed continuously even after curriculum of school. Even the in-service education on infection management needs to be vitalized. Also, the necessity was examined for always recognizing and practicing importance of infection by using a method of publishing newsletter via post to dental clinics where are located in rural area, with considering regional deviation.
  • 4.

    Effects of school incremental dental care program

    Lee Jung Hwa | 김진범 | 조갑숙 | 2010, 10(3) | pp.465~471 | number of Cited : 5
    Abstract PDF
    Objectives : This study was conducted to purpose the fundamental data for further developments of the school dental clinic program(SDCP) through comparing results of oral health promotion program for 4 years relating to compare oral health status of children who had experienced and had not experienced the program. Methods : The subjects were 66 children of elementary school in Busan Metropolitan City who had benefited school dental clinic program(SDCP) from 2004 to 2007 and control group was 98 children of elementary school who had not benefited school dental clinic program(SDCP). Data analysis were done with SPSS program (ver 13.0) through basic statistical data, t-test. Results : The DMF rate of elementary school students who had benefited program was 41.5% and it was lower than that of control group(52.5%), however it was not significant statistically. The DMT index of elementary school students who had benefited program was 1.81 and it was lower than that of control group(2.44)(p<0.05). The DMFT rate of elementary school students who had benefited program was 4.44% and it was lower than that of control group(7.45%)(p<0.05). Conclusions : In oder to promote oral health of children, school dental clinic in elementary school should be extended to more elementary schools as possible and the operating system should be changed to improve the efficiency. Oral health educational materials should be developed and utilized to improve educational effect.
  • 5.

    The effect of fluoride and casein phosphopeptide-amorphous calcium phosphate (CCP-ACP) application on the color and microhardness of bleached enamel

    심연수 | 최우양 | 2010, 10(3) | pp.473~481 | number of Cited : 5
    Abstract PDF
    Objective: To evaluate the effect of fluoride application on the color and microhardness of bleached enamel and compare it to that of casein phosphopeptide-amorphous calcium phosphate (CCP-ACP) application. Methods: Twenty freshly extracted human adult molar were each sectioned into halves, the specimens divided and treated according to five experimental groups: Group 1, treatment with 10% carbamide peroxide (CP) bleaching agent; Group 2, treatment with 10% CP followed by a 1.23% fluoride gel application; Group 3, treatment with 10% CP followed by a 2.23% sodium fluoride varnish application; Group 4, treatment with 10% CP followed by a 0.11% sodium fluoride gel application; Group 5, treatment with 10% CP followed by a CPP-ACP gel application. All groups were treated 6 h per day for 14 days then immersed in distilled water for 2 weeks. Changes in enamel color were evaluated on Baseline and Day 14. Microhardness were evaluated on Baseline, Days 7 and 14. Statistical analysis was performed using one-way ANOVA and post-hoc Tukey tests. Results: All the bleached enamel specimens revealed increased whiteness and overall color value. Group 1 showed the lowest microhardness values than that of Groups 2, 3, 4 and 5. In all groups, the hardness of tooth after bleaching showed a significant decrease in the microhardness as compared with the one prior to tooth bleaching. The specimens treated with remineralizing agents showed relatively less reduction in enamel microhardness than control group. Conclusion: The addition of fluoride and CPP-ACP did not impede the whitening effect. The use of remineralizing agents during bleaching treatment can significantly enhance the microhardness of bleached enamel.
  • 6.

    Perception and attitude for the expansion of the adjusted water fluoridation program in Gimhae, Korea

    Lee Jung Hwa | 조점자 | 조미숙 and 3other persons | 2010, 10(3) | pp.483~493 | number of Cited : 2
    Abstract PDF
    Objective: The purpose of this study was to obtain the information for the improvement of the support in oder to expand the adjusted water fluoridation program to Myeong-dong water treatment plant in Gimhae city, Korea. Methods: Questionnaires were distributed to the parents of elementary schoolchildren and their responses were collected. All collected data were analyzed using the SPSS program. Results: The percentage of respondents using the tap water was 47.0% for drinking and 54.4% for cooking, respectively. The percentage of respondents using the water purified the tap water with the home water purifier was 45.1% for drinking and 36.2% for cooking, respectively. Respondents who knew the adjusted water fluoridation program was 48.3%. Respondents who knew the implementation of the adjusted water fluoridation program at the moment in Gimhae was 27.0%. 90.2% of residents agreed on the expansion of the adjusted water fluoridation program to Myeong-dong water treatment plant, Significant variables in the approval rates of the adjusted water fluoridation program were age, residence period, occupation, recognition of the program. Conclusion: It is desirable to expand the adjusted water fluoridation program to Myeong-dong water treatment plant in Gimhae as the percentage of respondents who agreed on the introduction of the program was high.
  • 7.

    Effects on the school dental clinic operation for children's oral health

    Min Hee-Hong | 민세홍 | 2010, 10(3) | pp.495~502 | number of Cited : 6
    Abstract PDF
    Objetives : It tries to grasp whether the knowledge and attitude about the oral health of the school dental clinic operation school and non-operation school with 6 grade children in Daejeon Metropolitan City and the school dental clinic operation reaches any influence to the oral health of the child or not. Methods : The self-administered survey was performed for the school dental clinic operation group (201 people) and non-operation group (207 people) child 408 people from October 5th in 2009 until October 31st. By using the spss statistical program(VER 15.0), the statistical analysis performed the chi-square verification and t-test. Results :1. The knowledge degree about the oral health according to the oral health education is the health education experienced group 22.34±3.36 and non-experienced group 20.32±3.49 (p=0.000), and the attitude showed the health education experienced group 15.06±2.99 and non-experienced group 13.30±3.20, oral health education experienced group significantly higher in the knowledge and the attitude, there was statistically significant difference (p=0.000). 2. The knowledge degree about the oral health according to the school dental clinic operation is school dental clinic group 22.84±2.92 and non-school dental clinic group 20.83±3.73 (p=0.000), and attitude showed high the school dental clinic group as the school dental clinic group 15.48±2.75 and non-school dental clinic group 13.76±3.26, there was statistically significant difference (p=0.000). Conclusions : The knowledge degree and attitude about the oral health showed high in oral health education experience group and the school dental clinic group when looking at the result described in the above. It thinks that the school dental clinic group has to be expanded for the oral health promotion of the children.
  • 8.

    Study on observation frequency and performance frequency of clinical practice of dental hygiene department students in some areas

    김정숙 | 원영순 | 2010, 10(3) | pp.503~512 | number of Cited : 2
    Abstract PDF
    Objectives : In this study, in order to provide basic data for more efficient and systematic clinical practice training by recognizing the need of effective and standardized operation of clinical practice accomplished in clinical fields belonging to the curriculum of dental hygiene department, grasping, investigating, and analyzing satisfaction degree of the clinical practice through student's frequency of observation practice and performance practice. Method : A survey was conducted against 208 students in the 3rd grade of 4 dental hygiene departments located in Jeonbuk province. Results : As results, it was found that for the observation practice frequency according to clinical practice term by universities, the basic clinical practice was higher in A, B, and D university and that the correction and practice was higher in D university. For the performance practice frequency, it was found that basic care practice was higher in B and D university, oral medicine practice, preventive dentistry practice, and periodontal practice were higher in A and C university, pediatric dentistry practice was higher in B and C university, prosthetic dentistry practice was higher in A, B, and C university, and oral surgery practice was higher in B university. It was identified that satisfaction was higher in the basic care practice, the preventive dentistry practice, and the periodontal practice in the range of clinical practice, and the A and C university receiving higher score in the performance practice frequency got higher score in the oral medicine practice, the preventive dentistry practice, and the periodontal practice. Conclusions : As the basic care practice items in the clinical practice area which got relatively higher score in observation practice, performance practice, and satisfaction degree of the dental hygiene trainee are basic and essential works that they will perform the most frequently, it is considered that integrated clinical practice training including the intramural practice course is required.
  • 9.

    Maincause of influencing oral health impact profile(OHIP) and self-esteem of orthodontic patients

    박영남 | Lee Mi Ra | 2010, 10(3) | pp.513~522 | number of Cited : 10
    Abstract PDF
    Objectives : This study aimed to determine self-esteem and oral health impact profile (OHIP) of orthodontic patients to get data necessary for the process of consultation, education, and treatment for those patients who hoped to get orthodontic therapy in order to see effects of orthodontic therapy on personal life in consideration of general characteristics of those patients under orthodontic therapy. methods : A self-administered questionnaire was used among 232 outpatients under orthodontic therapy from October to November 2009, obtaining the following results. Results : 1. As for general characteristics of respondents, those under 19 years of age constituted 46.6%; the unmarried comprised 85.8%; and students constituted 53.4%. 2. Most respondents were getting orthodontic therapy for beauty (41.8%) and dental health (40.5%). Family (54.3%) contributed to their decision to get orthodontic therapy; parents or siblings (62.5%) were bearing the treatment expenses. 3. Females were getting orthodontic therapy for an aesthetic purpose (50.3%), and male for the purpose of dental health (44.6%) (P<0.01). 4. OHIP was slightly higher among males (4.10±0.61) than among female (4.00±0.78), and was highest among those 19 years old and under (4.17±0.67); the older they were, the lower it was significantly (P<0.05). Most of them were earning 3 to 4 million won (4.22±0.72); the married (4.05±0.74) constituted higher percentage. As for occupation, students (4.13±0.66) comprised the highest percentage. 5. Self-esteem was higher among males (3.83±0.47) than among females (3.80±0.50), and was highest among those 25 to 29 years old (3.92±0.46). Most of them were earning more than 5 million won (3.91±0.42), which was statistically significant (P<0.01). The married (3.91±0.54) constituted higher percentage than the unmarried (3.80±0.48); office managers (3.95±0.55) comprised the highest percentage. 6. As for correlation between variables effecting OHIP of orthodontic patients,there was negative correlation in age (r=-0.225) and positive correlation in occupation (r=0.122). As for correlation between variables effecting self-esteem of orthodontic patients, there was negative correlation in occupation (r=-0.130) and positive correlation n income (0.126), while there was positive correlation (r=0.202) between OHIP and self-esteem of orthodontic patients. Conclusion : Younger orthodontic patients who were students showed higher OHIP, and professionals earning more showed higher self-esteem. Orthodontic patients with higher OHIP showed higher self-esteem. Therefore, it is necessary to develop a program based on OHIP and self-esteem in consulting and treating orthodontic patients; since it is considered that orthodontic therapy will improve appearance, enhance self-confidence, and have positive effects on interpersonal relationships and quality of living, researches are necessary on constant changes in psychological properties.
  • 10.

    A study on oral health knowledge and oral health behavior of elementary school student in some regions

    김정숙 | 강은주 | 최미혜 | 2010, 10(3) | pp.523~530 | number of Cited : 4
    Abstract PDF
    Objects : In order to provide basic data necessary for developing oral health education plane for school continued oral health education by understanding knowledge and activities of oral health. Method : This study was performed against 324 students at 5th grade of 2 elementary schools in Iksan-si, Jellabuk-do selected through convenience sampling, who were in mixed dentition period that might experience dental caries of permanent tooth. Results : As results, For the knowledge level on oral health by questions, it was found that the case that the elementary school students had correct knowledge on oral health was 'chocolates, snacks, and candies were foods that might often cause dental caries' and 95.8% of the students recognized it well. It was found that for 'must do toothbrushing before going to bed', 'during toothbrushing, I clean my tongue', and 'Proper time necessary for toothbrushing is about 3 minutes', 89.3%, 93.2%, and 89.3% of the students knew the, respectively. When oral health knowledge level by groups was divided into 3 groups and observed, they were classified into Low (0-4 points), Mid (5-7 points), and High (8-10 points). It was found that the knowledge level of each group was High 64.1%, Mid 33.9%, and Low 2.0% and it was identified that the high group took the largest ratio. It was suggested also for oral health knowledge level depending on their father's academic background that there was a statistically significant difference in the group higher than university graduate(p<.05). It was found for oral health knowledge level depending on parents' dental condition that an answer that both parents were good was high and there was a statistically significant difference. But post-analysis resulted that there was no apparent difference among groups. It was found that the ratio of respondents who answered for toothbrushing method 'toothbrush should be moved and rotated downward for the upper teeth and upward for the lower teeth to clean the teeth and gum' were 33.2% of male students and 29.4% of female students and showed statistically significant difference (p<0.05). It was found also that the ratio of respondents who answered to use a toothbrush for about 3 months' were 29.4% of male students and 25.5% of female students and showed statistically significant difference (p<0.05). Conclusions : Oral health program through the elementary school students and their parents for the development of proper oral health care education programs continue to be made should be considered
  • 11.

    A Study on occurrence of porosity and leakage of mercury in dental amalgam's inside

    김주원 | 2010, 10(3) | pp.531~540 | number of Cited : 1
    Abstract PDF
    Objectives : In this study, following the cavity restorations with low copper conventional alloy, high copper admixed one and high copper unicompositional one, which are used the most frequently in a clinical setting at the present, to experiment the time-dependent changes of strength, bubbles were examined. Besides, to examine the detrimental effects of mercury contained in dental amalgam, the amount of mercury release was evaluated. Methods : As dental amalgams which were used herein, [BESTALOY], [Hi-Aristaloy 21] and [Sybraloy] were selected for a low-copper conventional amalgam, a high-copper admixed one and a high-copper unicompositional one in the corresponding order. The formation of bubbles and the weight ratio of mercury release were evaluated using a field emission scanning electron microscope (FE-SEM). Thus, the following results were obtained:Results :1. The time-dependent amount of mercury release reached a statistical significance in three types of alloys, which was shown in such a descending order as [BESTALOY], [Hi-Aristaloy 21] and [Sybraloy]. 2. A low-copper conventional type, BESTALOY is a cutting type and it was found to have an increased formation of fine bubbles. In the remaining two types, [Hi-Aristaloy 21] (a high-copper admixed alloy) and [Sybraloy] (a high-copper unicompositional alloy), the time-dependent changes in the formation of bubbles was negligible. Conclusions : Accordingly, this type of mercury release from amalgam alloy denotes the difference in the weight ratio of total constituents between after 24 hours and after two weeks. But further studies are warranted to examine the amount of mercury release which is detrimental to human bodies. Besides, a low-copper conventional alloy is a cutting type and it was characterized by the abundant formation of bubbles in a time-dependent manner. This implies that the strength of amalgam is impaired, which should be considered in selecting the appropriate amalgam alloy in a clinical setting.
  • 12.

    The amount of dentifrice used by opening diameter size and current status of commercial dentifrices for children in Korea

    전주연 | 이현옥 | 강영희 | 2010, 10(3) | pp.541~553 | number of Cited : 3
    Abstract PDF
    Objectives : The purpose of this study was to examine the use of dentifrice for children, the state of dentifrice for children on the market and the relationship between the bore of dentifrice and the amount of dentifrice used in an effort to provide parents, main consumers of dentifrice for children, with the right information on dentifrice. Methods : Data on the use of children's dentifrice were gathered by investigating parents in Seoul and Gyeonggi Province in July and August, 2009. The selected parents had children aged one to five in Western age. Result :1. As to the purchase of dentifrice for children, the largest group (75.9%) were aware of the name of the toothbrush used by their children, and the greatest group (97.3%) bought the toothbrush on behalf of them. Advertising was the most dominant source of information on the choice of dentifrice (51.8%), and non-professionals were the most common providers of information on that (55.9%). 2. The amount of dentifrice used at a time was a mean of 0.467±0.270 g. There was a wide disparity in that aspect from a low of 0.100 to 1.900 g. As to the influence of the size of the bore of dentifrice, the greatest amount of dentifrice was used (0.670±0.306 g) when the bore of dentifrice was 9 mm in size, and the bore size 9 mm was significantly different from the size 3 mm and 6 mm in that aspect (p<0.001). 3. There was one kind of imported dentifrice for children on the market. Concerning the fluoride ingredient of dentifrice, the biggest number of dentifrice contained MFP only. As to the size of the bore of dentifrice, there was a difference of 3 to 9 mm. Most of dentifrice for children included the pictures of particular characters. Conclusions : The above-mentioned findings illustrated that there is a serious concern for the intake of fluoride among infants and preschoolers, it's needed to pay careful attention to the use of dentifrice. Dentifrice for children should be manufactured in consideration of the relationship between the size of the bore and the amount of dentifrice used.