• The Journal of the Korean dental association
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• v.17 no.2 s.117
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• pp.141-145
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• 1979

The author, through oral examination, had surveyed the caries experienced teeth in 250 Korean mental Disorders(153 males and 97 fameles) who took it a rule consume a Vegetable diet and had litte chance to Consume refimed Corbohydrates, unlike the Common populars. DMF rate DMFT rate index DT rate MT rate and FT rate had been calculated and Compared with Common Popular's in same ages group. Following are the obtained results 1. In the mental Disorders, Caries experience rate was 52.19% 2. D.M.F. rate and index were lower in the females than in the males 3. The Caries experience rate in the mental Disorders was lower than in the Common Populars 4. In the mental Disorders the F.T. rate was higher in females than in males D.T. rate higher in males than in females and MT rate, lower in males than in females 5. In generally D.T. rate in the mental Disorders was lower than in Controls, M.T. rate resembled as Controls and F.T. rate higher

• The Journal of the Korean Society for Microbiology
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• v.18 no.1
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• pp.11-21
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• 1983

Various investigations have been carried out to elucidate the causative relationship between specific oral bacterial species and dental caries since it was first demonstrated that selected streptococoal species produced dental caries in germfree rats when fed a high-sucrose diet. Now, S. mutans is considered to play an important role in the development of dental caries in animals and humans, and only a limited number of species of bacteria other than S. mutans are occasionally found to be cariogenic in experimental animals. In this regard, association of the number of S. mutans in approximal plaque with caries experience (DMFT) was studied from 137 Korean school children($10{\sim}11$ year old). Biotypes of the collected strains of S. mutans were determined, and their relationship with caries status was also examined. The following results were emerged from the study. 1. S. mutans was detected in the plaques of all children. 2. Statistically significant positive correlation(r=0.445, p<0.001) was found between the caries experience(DMFT) and the number of S. mutans in approximal plaques. 3. The number of S. mutans were significantly higher(p<0.001) in plaques removed from carious surface than from sound surface. 4. The most frequent biotype was biotype I(78.8%), followed by IV(33.1%) and V(09.5%). Biotype II was isolated in the plaque of two children(1.7%) only. 5. There was no apparent relation of specific biotypes to carious status.

• Journal of Korean society of Dental Hygiene
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• v.8 no.2
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• pp.93-106
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• 2008

This study is to enforce to ready basic data of effective school dental health education for dental caries prevention， relation knowledge of class, feeding practice and snack intake preference actual conditions, food and caries executed investigation by own recording way using questionnaire consisted of dental health education awareness to some business world man high school locating in Kyonggi Province. Analyzes result that total 487 people respond in SPSS WIN 13.0 programs and got following sequence The obtain result were as follows 1. Results about habit of breakfast was the most by 36.1% a student who have breakfast every day, and a student who hardly eat dominated 32.9%. Second-year student hardly had breakfast (p<.01). 2. A student who answer that snack kind that often eat was cookies and snack kind was the most by 37.2%, and a student who answer that symbol drink was a carbonated drink was the most by 50.9%. 3. Relation knowledge degree appeared grand mean among 18 points perfect score by 12.36 with food and caries. Third-year student knowledge degree was the highest, and second-year student was the lowest knowledge degree by class (p<.01). 4. Existence and nonexistence of experience of dental health education appeared a student who experience that take dental health education does not exist by 57.1%. There was experience that take dental health education as class is low by class, and as class is high, experience did not exists (p<.05). 5. Time that take dental health education for the first time was the most by 56.7% a student who respond 'Babyhood', grade in school is low by class 'Babyhood', and is high by class responded 'Middle school'(p<.05). 6. Awareness of dental health education necessity 'may educate dental health and does not' a student 56.3%, half was looked attitude which students who exceed are insincere about dental health education necessity. 7. When educate dental health, contents was the most by 44.6% 'brushing and mouth article directions' to be educated importantly, and was expose by caries 31.2%, gum disease 10.1%, scaling 9.0%, prosthetic dentistry and implant 5.1% period of ten days, third-year student 50.8% said that 'brushing and mouth article directions' is important (p<.05). Dental health education is practiced during life, and is a teaching that should be remembered. Need to develop epoch-making and interesting education program that is correct in subject to do as quickly as possible, and should be achieved major road of dental hygienist. Dental hygienist will have to settle as quickly as possible as expert of prevention that is natural business and education and help in dental health education development under effort between country and dental association effective.

• Korean Journal of Health Education and Promotion
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• v.20 no.2
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• pp.95-112
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• 2003

Objectives： Oral health care program for the elementary school children (ESOHCP) should be met the first priority because dental caries are highly sensitive and prevalent among them. This study was performed to enhance the efficiency of ESOHCP, and their oral health promotion. Methods： The Subjects were 346 students (3rd grade 163, 6th grade 185) of one elementary school in Busan. Dental IQ and actual oral health status； the decayed, mixing and filling teeth were checked through questionnaire and oral health examination from April to June 2002. Dental IQ was presented out of one hundred, and data analysis was done using SAS (ver 8.1) program. Results： The students' cognitive level about the causative and preventive factor of dental caries was relatively high. However, the practical aspects of preventive behavior - tooth brushing； three times per day (20％), three minutes per time (22％), oral health examination； one time per three months (10％) left much to be desired. And, only 27％ of the subjects had experienced in school oral health education. The mean level of dental IQ was 79 out of 100, and 51 ％ and 42％ of them had the decayed and teeth with filling, respectively, with the rate of DMFT 82％, DT 43％, FT 57％. The level of dental IQ was higher in case of having his (her) own tooth brush (p＝0.072), standard tooth brushing (p<0.001) three times per day, post meal, three minutes per time, present experience of oral health examination (p<0.001) and dental clinic visit (p<0.001). The grade of caries was more serious in case of 6th grade (p＝0.059), an absence of his (her) own tooth brush (p＝ 0.090), present experience of oral health examination (p＝0.021), and an absence of regular dental clinic visit (p＝0.003). The frequency of oral health examination (γ＝ 0.620), tooth brushing； times per day (γ＝0.445), post meal (γ＝0.355), expending times per brushing (γ＝0.352), right cognition to the treatment of caries (γ＝0.401), positive attitude to dental treatment (γ＝0.387), the frequency of dental clinic visit for the past one year (γ＝0.152) showed significant correlation with dental IQ. In the multivariate analysis, dental IQ was influenced by the frequency of oral health examination, right cognition to the cause of caries, times of teeth brushing per day, right cognition to the treatment of caries, etc., with adjusted R2＝0.857. Conclusion： Though the students' cognitive level about the causative and preventive factor of dental caries was high, the practical aspects of preventive behavior left much to be desired. Ant the current ESOHCP considered to be still inefficient. However, frequent dental visits had apparent correlation with hish level of dental IQ. The specialized and practical program should be needed for the efficient ESOHCP. Harmonized effort from educational, health and dental society is essential.

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.3
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• pp.483-492
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• 1998

To investigate the prevalence and etiologic factors of nursing caries, oral examination was performed on 1,100 kindergarten children from 6 Seoul areas and 3 Hongchun areas. Parents were asked to fill out questionnaires. The following results were obtained: 1. The prevalence of nursing caries among 1,100 in the sample group(age 30-75 months) was 14.8%. 2. Fathers' education level(p<0.05), mothers' education level(p<0.01) and monthly income was higher in caries-free group children. 3. When the dietary tendencies of nursing caries group and caries-free group were compared, no significant differences in the length and method of feeding were found. However, nursing caries group showed higher frequency of bedtime nursing habit(p<0.01), daytime use of bottle as a comforter(p<0.01) and other beverage feeding in addition to milk(p<0.01). 4. When the parents' awareness of caries prevention was compared, caries-free group per formed more frequent tooth cleansing(p<0.05) and periodic dental examination(p<0.01).5. Dental caries experience of mothers was significantly lower in the caries free group(p<0.05). From the above results, it can be concluded that deleterious nursing habit had great effect on developing nursing caries and the incidence of nursing caries was lower among children with parents of higher socioeconomic status.

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.1
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• pp.152-156
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• 1998

The purpose of this study was to investigate the prevalence rate of the nursing caries in preschool children by retrospective epidemiological survey. 500 preschool children in Iksan city were examined for their dental caries experience (dt, mt, ft). Subjects were divided stepwise by the pattern of caries experience: Group 1-no caries, Group 2-no caries in the upper arch, Group 3-no caries among the upper incisors, Group 4-dmft in the lower arch $\geq$ mft in the upper arch, Group 5-dmft among the upper molars > dmft among the upper incisors, Group 6-dmft among the upper molars < dmft among the upper incisors+caries among the lower incisors, and Group 7-the rest. Groups 6 was regarded as the group which had experienced rampant caries, and the Group 7 was regarded as the group which had the typical pattern of nursing caries. The prevalence rate of nursing caries (Group 7) was 16.0%.

• Journal of Korean society of Dental Hygiene
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• v.14 no.4
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• pp.479-484
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• 2014

Objectives : The aim of the study is to investigate the oral health knowledge, attitude and dental caries experience in Korean 12-year-old adolescents. Methods : The subjects were 2,196 adolescents living in Seosan, with an average age of 12.2 years. Data were collected using a self-administered questionnaire from April 10 through June 10, 2011. A trained investigator made an oral examination of them in natural light, using a mirror and an explorer to determine their DMFT index. Results : The prevalence rate of dental caries of adolescents was 59.1%. The DMFT index of the subjects was 1.98, which was lower than the national mean of 2.2 for the same age. The DMFT index was significantly higher in the female(2.25) than the male group(1.72). The attitude of oral health was positively related to DMFT index in this study(OR=1.25; CI=1.01-1.54). It appears that knowledge and attitude concerning oral health, among young Korean 12-year-old adolescents living in Seosan, are in need of improvement. Conclusions : Based on the findings, dental caries experience is associated with attitude of oral health. This result suggests that the implementation of oral health promotion should be considered for various factors related to attitude of oral health in adolescents.

• Journal of Integrative Natural Science
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• v.4 no.2
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• pp.143-148
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• 2011

This study was to promote the business of school dental health program in community area and to present the improvement of oral health between public health center's group of SungDong elementary school, one that started on March 1999, and the control group that is going to operate school oral health center from 2009 in primary school. It was based on the data of more than 10 years running school based oral health section. We compared the data of SungDong group with the one of control group to get a survey of dental caries experience. The preventive effect of the caries was estimated by the difference of DMFT indices between the sample group and control group. The experience rate of caries of the sample was 12.6 percentage lower than the control group and index of the experience rate of caries for the SungDong group was two times less. It showed that the sealing rate of the SungDong group composed of pit and fissure sealant was 67.7 percentage high. The prevention rate which was calculated by DMFT index was 46.34 percentage in the SungDong group that was the highest score for the fifth grade student as a 60.5 percentage. This program contributes to the improvement of the dental caries reduction in this school oral health promotion program.

• The Journal of the Korean dental association
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• v.15 no.3
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• pp.209-214
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• 1977

The author extracted 300 children as a control group and 300 children as an observation group from Korean primary school children which were aged 9 to 11, and surveyed the dental caries experience and oral hygiene condition. Children in a control group had not been served wit school meal. On the other hand, children in an observation group were served with school meal. The average number of caries experienced permanent teeth per mouth and the oral hygiene indices were calculated from the collected data and compared with each other. The obtained results were as follows. 1. The DMFT rate was 15.93% in the observation group and 10.33% in the control group. 2. The Oral Hygiene Index was 1.04 in the observation group and 1.60 in the control group. 3. It couldn't be made a decision that school meal service was direct cause to increase the occurrence of dental caries on the permanent teeth in Korean primary school children.

• Journal of the korean academy of Pediatric Dentistry
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• v.47 no.3
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• pp.293-302
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• 2020

The purpose of this study was to evaluate the applicability of virtual reality simulation after experience of dental caries diagnosis for dental students before exposing to clinical pediatric practice. A pediatric patient model of a five-year-old child with primary dentition was developed and a caries model that is amenable to VR(virtual reality) diagnosis was organized and set-up. The dental student's were allowed to use the simulated model for fifteen minutes and their experiences were evaluated using a self-reported questionnaire to evaluate presence and usability of this application. Overall, virtual presence and appearance area of the simulation were highly scored. The result indicates that the VR model has no significant difference from the actual clinical caries regardless of grade of students, gender and VR experience. If the prototype is continuously advanced, its applicability in dental education will increase.