• Journal of the Korean Society of School Health
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• v.6 no.2
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• pp.69-75
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• 1993

The questionaire survey in this study was obtained from 1256 upper elementary children in a certain elementary school in In-Cheon city from May 1 to May 31 1993. The purpose of this study was to promote an understanding on the Actual condition of oral health management and to plan a desirable solution for oral health program by surveying the current status of oarl health management. The survey was carried out by using the questionaire after being modified and complemented which was used for the survey of the study on the actual condition of oral health management by Sin Seon Hang (1989). The major results are summarized as follows: 1. General tooth brushing of respondents. 1) As for frequency, 2 times it day is highest. 2) After breakfast meal and below 3 minutes is high. 3) Respondents brushed only teeth with the direction of up and down, left and right side. 4) The period of using for one tooth brush is from 4 months to 6 months. 2. The degree of recognition on oral health knowledge is low. 3. 1) The degree of dental examine's experience with scaling experience are 26.83%. 2) Respondents who experience dental treatment are 57.88%. 3) In oral disease, dental caries is highest. 4) Great difficulty of going to the dentists' is psychological thread and next is lack of time.

• Journal of Korean society of Dental Hygiene
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• v.16 no.1
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• pp.85-92
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• 2016

Objectives: The purpose of this study was to investigate comparison of the effectiveness on knowledge improvement before and after the oral health education focusing on foreign students. Methods: A self-reported questionnaire was filled out by 40 foreign students in Sun Moon University from June 2 to September 30, 2014. The experimental group had an online oral health education and the control group had an off line education. The questionnaire consisted of oral health(10 items), toothbrushing(10 items), dental caries(10 items), periodontal disease(5 items), tooth sensitivity(5 items), oral cancer(6 items), and smoking(5 items). The data were analyzed by SPSS Win 18.0 program. Results: Knowledge scores of online education increased to average 1.257 points, and that of offline education was average of 2.56 points. There were statistically significant results for toothbrushing, dental caries, periodontal disease, tooth sensitivity, oral cancer and TMD except for smoking in offline education group. Conclusions: This study suggests that the offline oral health education is more effective than online oral health education.

• Journal of Korean Academy of Nursing
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• v.34 no.1
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• pp.132-140
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• 2004

Purpose: This study was performed to investigate the effects of oral health education on kindergarten children. Method: The study was designed as a quasi-experimental, nonequivalent control group pre -post test design. Data was collected from April 1st to November 30th, 2001. The total samples were sixty seven healthy kindergarten children; the experiment group consisted of thirty three and the control group was thirty four children. The experimental group received an oral health education program daily for 20 minutes for four weeks. Result: There was significant improvements on oral health behavior in the experimental group. Streptococcus mutans and lactobacilli of the salivary variables in the experimental group were significantly higher than the control group. The dmft was lower in the experimental group than the control group, but there was no significant difference between the two groups. However it was significantly lower in the experimental group than control group over time. Conclusion: Oral health education for kindergarten children showed an increase in the use of tooth paste and practicing correct tooth brush usage. Also, it decreased the rate of eating cariogenic food and had a positive effect on oral health through suppressing dental cavities.

• Journal of Technologic Dentistry
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• v.37 no.4
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• pp.213-218
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• 2015

Purpose: The purpose of this study compared of reproducibility of prepared tooth impression scanning utilized with white and blue light scanners. Methods: To evaluate reproducibility with white and blue light scanners, the impression of premolar were rotated by $10^{\circ}{\sim}20^{\circ}$ and scanned. These data were compared with the first 3-D data (STL file), and the error sizes were measured (n=5). Independent t test was used to evaluation the reproducibility of impression of premolar with white versus blue light scanners through discrepancies of mean, RMS (${\alpha}=0.05$). Results: Discrepancies of mean with regard to reproducibility were $11.2{\mu}m$, $5.8{\mu}m$, respectively, with white and blue light scanners (p<0.047). And discrepancies of RMS with regard to reproducibility were $33.4{\mu}m$, $18.8{\mu}m$, respectively, with white and blue light scanners (p<0.045). Conclusion: Our results indicate a good reproducibility of prepared tooth impression digitized with blue light scanner more than that with white light scanner.

• Journal of the Korea Convergence Society
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• v.12 no.11
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• pp.127-134
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• 2021

This study was to analyze the convergence factors of influencing subjective happiness of oral health characteristics in adolescents. The data were analyzed using the 16th(2020) Korea Youth Risk Behavior Survey(n=54,948), logistic regression analysis was conduct. Subjective happiness were significantly different means by general characteristics(gender, grade, school record, economic status, residence type, suicidal ideation, drinking, smoking, mother's education) and oral health characteristics(number of toothbrushes, toothbrushing after lunch, experience of tooth break, pain and gingiva bleeding). Convergence factors affecting oral health characteristics on subjective happiness were number of toothbrushes(2times(OR=1.45), 3times(OR=1.53)), tooth brushing after lunch(OR=1.19), experience of sealant(OR=1.08), tooth pain(OR=0.73) and gingiva bleeding(OR=0.74). This study will be used as a basics data on the improvement of the subjective happiness in adolescents.

• The Journal of Korean Academy of Prosthodontics
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• v.61 no.2
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• pp.135-142
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• 2023

Resin-bonded fixed partial denture (RBFPD)as known as Maryland bridge is is a well-known conservative method for its minimized invasion of the teeth for an anterior single tooth edentulous area. Despite of its various advantages, RBFPD was not widespread because of its high debonding rates, non-esthetic look or weak structure for material property. Currently, with the introduction of zirconia to dental material for RBFPD, Maryland bridge entered upon a new phase. Zirconia surmounts poor esthetics of metal framework, having proper strength, and overcomes ceramic's structural weakness, being sufficiently esthetic. In this case, edentulous area of maxillary left lateral incisor was restored using zirconia resin-bonded fixed partial denture. Restoration of missing tooth in anterior area was achieved using non-invasive and esthetic prosthesis, then we report this case as satisfactory results were obtained for both the operator and the patient.

• International Journal of Oral Biology
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• v.45 no.1
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• pp.25-31
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• 2020

Enamel knot (EK)-a signaling center-refers to a transient morphological structure comprising epithelial tissue. EK is believed to regulate tooth development in early organogenesis without its own cellular alterations, including proliferation and differentiation. EKs show a very simple but conserved structure and share functions with teeth of recently evolved vertebrates, suggesting conserved signaling in certain organs, such as functional teeth, through the course of evolution. In this study, we examined the expression patterns of key EK-specific genes including Dusp26, Fat4, Meis2, Sln, and Zpld1 during mice embryogenesis. Expression patterns of these genes may reveal putative differentiation mechanisms underlying tooth morphogenesis.

• The Journal of the Korean dental association
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• v.10 no.3
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• pp.169-171
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• 1972

Mr. yoon, 1 20 years old man, in good health, was treated for unhealing the extraction wound, pus discharge and sensation of dull pain on maxillary 2nd molar areas. Roentgenographic examination showed unerupted 3rd molar in left maxillary sinus. The tooth was located immediatly under the zygomatic bone and directed to median line. Radical operation of its sinusitis and extraction of the impacted wisdom tooth were performed by Caldwell-Luc's operation technique. In morphological aspects, the tooth has resemblance to normal wisdom tooth.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.11
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• pp.4959-4967
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• 2011

The Purpose of this study was to examine the factors affecting oral health status of some workers. Answer sheets for questionnarie for 178 workers at Changwon city, Korea, were collected and analyzed using SPSS 19.0. The number of respondents who have visited dental clinic is lower among group with dental caries than group without dental caries. The respondents who have scaling corresponds to 31.3% in the group with dental caries and a little bit lower percentage is shown in the group without dental cares(p<.05). Among those with dental caries, the respondents who experienced tooth pains are to 51.3% and those who had frequent blooding in gum 48.7% and those who had ordors inside the mouth 53.8%. The number of respondents who had scaling within last one year among the group with gingival inflammation is lower than those without it(p<.001). In the group with gingival inflammation, no smokers are corresponding to 13.9%(p<.01) and those with more than 3 times brush of tooth 4.7% and those with oral hygiene devices are to 5.9%. Important variables which have effects on dental caries are understood as self-evaluation for dental health, dental floss or interdental brush, ordors in the mouth. Also variables related with gingival inflammation are considered as tooth brush before bed time, tongue pain, orders in the mouth, the cold as ice tooth and tooth scaling experience. In summary, Oral health education is needed to increase the motivation of industrial workers to control their basic dental disease.

• The Korean Journal of Health Service Management
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• v.8 no.4
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• pp.141-147
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• 2014

Dental clinic programs for elementary school children to live healthy life by promote healthy lives by oral health self-management skills. This study on schools with and without dental clinics compared and analyze teacher's knowledge of and attitudes toward oral care and determines whether or not to recommend the school dental clinic program. The subjects of the study were 239 teachers in schools with dental clinics and 201 teachers in schools without dental clinics. In total, the study included 20 schools and 440 teachers. Teachers from schools with dental clinics had a higher recognition rate of the purpose of tooth brushing and the fluoride caries preventive effect than teachers from schools without dental clinics. However, there was no significant difference between schools with and without dental clinics when we compared the daily tooth brushing frequency and oral health attitude. There is also need of a school dental clinic program for teachers because if teachers lack knowledge and professionalism of oral health it will affect the student's oral health attitudes.