• Journal of the korean academy of Pediatric Dentistry
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• v.37 no.3
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• pp.359-366
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• 2010

It was easy to find that children of a skeletal anterior crossbite in the early mixed dentition period showed a stark difference in the dental maturity between their maxillary and mandibular teeth, if they have stronger physical characteristics. If the difference of dental age between maxillary and mandibular teeth which can be identified via panoramic radiographs may serve as an early sign of class III malocclusion, this is considered valuable as a tool of early detection diagnosis. We obtained lateral cephalometric radiographs, panoramic radiographs, working model and clinical images of patients of Hellman dental age IIA and IIC who visited the department of pediatric dentistry, Pusan National University Dental Hospital and examined them to select 50 patents for normal occlusion group and skeletal anterior crossbite group, respectively. Their panoramic radiographs were used for the Demirjian's method to figure out dental ages of maxillary and mandibular teeth of each group and the eruption rate of the first molars. Their differences are as follows: 1. In both groups, the dental ages from Demirjian's method were advanced than the chronological ages. No sexual dimorphism was detected for the chronological or dental age in either group (p>0.05). 2. The difference of dental age of maxillary and mandibular teeth between the normal occlusion group and crossbite group was 0.22 and 0.69 years, respectively, with a higher difference in crossbite group(p<0.05). 3. Compared to the normal occlusion group, the crossbite group showed a higher difference in the eruption rate between maxillary and mandibular first molar(p<0.05).

• Journal of the korean academy of Pediatric Dentistry
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• v.40 no.1
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• pp.21-27
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• 2013

In growing children it is frequently found that dental maturation is strongly influenced by the growth rate of maxilla or mandible. If there is evidence to prove this, it might be utilized as a criterion in the early diagnosis of skeletal malocclusion, even before the object's real skeletal features are yet revealed. The purpose of this study was to find out if the difference of dental maturation in over-grown mandible in children with skeletal Class III has any relationship with some skeletal features of mandible. 50 patients in Hellman dental age IIIA with normal occlusion and Class III malocclusion of mandibular over-growth type respectively were selected as study objects. The age estimation was performed on maxillary and mandibular teeth, eruption rate of the 2nd molars of each group have been measured on panoramic radiography, and the differences in dental age of the upper and lower jaw were analyzed under Demirijian's method. The results were as follows: The difference of dental age of maxillary and mandibular teeth between the two groups was 0.66 and 1.20 years respectively, with a higher difference in the experimental group (p < 0.05). The difference of eruption rate of the maxillary and mandibular second molar was not found between two group (p >0.05).

• Journal of the korean academy of Pediatric Dentistry
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• v.45 no.1
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• pp.98-108
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• 2018

This study aimed to evaluate the nasopharyngeal and oropharyngeal dimensions of the patients with skeletal class II division 1 or division 2 patterns during the pre-peak, peak, and post-peak growth periods for comparison with a skeletal class I control group (79 for pre-peak, 40 for peak, 40 for post-peak). Total 159 lateral cephalograms (70 for skeletal class I, 51 for skeletal class II, division 1, and 38 for skeletal class II, division 2) were selected. The growth of anteroposterior dimension of the pharyngeal airway were statistically significant among growth periods. The dimension for the nasopharyngeal and oropharyngeal airway space was the smallest in the division 1 skeletal class II group followed by class II division 2 and skeletal class I.

• Journal of Society of Preventive Korean Medicine
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• v.27 no.3
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• pp.25-33
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• 2023

Objectives : The purpose of this study is to examine strategies for improving the school doctor of Korean medicine (SDKM) program through an analysis of the sex education case in the medical vulnerable area. Methods : Sex education was conducted by one SDKM in three elementary schools in Wando county. The contents of sex education focused on the characteristics of puberty and the prevention of sexual violence. The survey conducted on sex-related knowledge, desirable perception of sex, and satisfaction with education before and after the sessions. Results : A total of 316 students participated in the education. A survey was conducted with 130 participants, and all 130 responded to the pre-survey. In the post-survey, 113 participants responded. After education, the sexual knowledge score of students increased from 4.04±1.87 points to 5.02±1.79 points, and the average satisfaction score was 4.14±1.05. Conclusions : Sex education for students in the medical vulnerable area is an effective education that increases sex-related knowledge, positively changes sexual perception, and has high satisfaction. To improving SDKM program, development of a standardized education program and administrative support is necessary.

• Journal of the korean academy of Pediatric Dentistry
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• v.31 no.1
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• pp.46-51
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• 2004

Talon cusp is cusp-like structure that develops additionally in crown of anterior tooth. And it is one of dental anomalies. Talon cusp can cause various diagnostic, functional, aesthetic problems depending on the size and configuration of cusp. there is a tendency for caries to occur in the developmental grooves, and advanced attrition, periodontal problems, irritation the tongue and temporomandibular pain, occlusal interference and displacement of affected tooth may result. Therefore, early diagnosis and appropriate treatment of each case is important so that it minimize local problems, such as caries, periodontal diseases, and malocclusion. These cases which are in permanent and primary anterior teeth are about gradual reduction forming reparative dentine and complete reduction of talon cusp and root canal therapy which is an alternative and effective form of treatment when gradual reduction of talon cusp may not be possible.

• Journal of the korean academy of Pediatric Dentistry
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• v.35 no.2
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• pp.235-242
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• 2008

The purpose of this study was to investigate the relationship of the skeletal maturity of hand-wrist and the development of mandibular third molar in subjects with class I and class III malocclusion. The subjects used in this study were 304 children(149 boys, 155 girls) with class I malocclusions and 308 children( 153 boys, 155 girls) with class III malocclusions, ranged from 8 to 15 years of age. Hand-wrist radiographs and panoramic radiographs were used to evaluate the stage of skeletal maturity and teeth development. Fishman's method for the skeletal maturity stages of the hand-wrist and new six-developmental-stage method for the calcification stages of mandibular third molars were analyzed. The results were as follows : 1. In subjects with class I and class III malocclusion, skeletal maturity of the hand-wrist occured earlier in females than in males(p<0.05), while the calcification stages of mandibular third molars were no significant gender differences. 2. There were no significant differences between the groups, when comparing the skeletal maturity stages of the hand-wrist and the calcification stages of mandibular third molars between subjects with the class I and the class III malocclusion. 3. The correlation coefficients between the calcification stages of mandibular third molars and the skeletal maturity stages of the hand-wrist in subjects with class I and class III malocclusion showed a high interrelationship(p<0.01). 4. The correlation coefficients between the calcification stages of mandibular third molars and chronological age in subjects with class I and class III malocclusion showed a high interrelationship (p<0.01). As a result, there were no significant differences between class I and class III malocclusion group for skeletal maturity of the hand-wrist and third molar development.

• Journal of the korean academy of Pediatric Dentistry
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• v.42 no.2
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• pp.144-150
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• 2015

Early treatment is recommended for class III malocclusion in the primary dentition, though it is difficult to diagnose correctly. It was recommended dental maturation can possibly be used to make a differential diagnosis of skeletal class III malocclusion. This study aimed to compare dental maturation of first molars in children with skeletal or non-skeletal class III malocclusion in the primary dentition and to determine if dental maturation could be used to make a differential diagnosis of class III malocclusion. Among the children visiting the department of pediatric dentistry in Pusan National University Dental Hospital for anterior crossbite in the primary dentition, 18 were categorized into the non-skeletal class III malocclusion and 34 into the skeletal class III malocclusion. Panoramic radiographs were used to make comparative analysis of dental age and the eruption rate of the first molars. The following results were obtained. No difference was found between chronologic and dental age by the skeletal features or gender, with the latter being older than the former (p < 0.05). The discrepancies in eruption rate of first molars were significantly different between skeletal (18.91%) and non-skeletal groups (16.53%) (p < 0.05). This result implies that maturation of the first molars might be used to make a differential diagnosis of class III malocclusion.

• The Journal of Pediatrics of Korean Medicine
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• v.27 no.2
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• pp.31-47
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• 2013

Objectives This study was done to confirm reliability, validity and the internal structure of the Korean Medicine Satisfaction Questionnaire(KMSQ). Methods 154 parents who visited in Department of Pediatrics of Korean Medicine, University Hospital participated in this study. They were statistically analyzed by using PASW Statistics 20.0K for Windows. Results Factor analyses were largely divided into six categories such as Hospital, Waiting & Consultation Time, Doctor, Medicine, Therapy, and Cost. The validity and reliability of KMSQ were favorable. The highest average score of satisfaction was Doctor category as $4.20{\pm}0.51$ and the lowest one was Cost as $3.33{\pm}0.71$. The six factors showed highly positive relationship from correlation analysis. The result of comparative study on parent's demographic characteristics showed only one significant difference in satisfaction of Doctor within occupation. The result of comparative study on child's demographic characteristics showed significantly different in satisfaction of Therapy within gender, and of Medicine within age. Every average score of satisfaction showed somewhat difference within each section, and only 5.6% of them showed significantly difference in T-test. Conclusions Uses and research with the KMSQ as subjective tool in various department or medical institution are suggested.

• The Journal of Pediatrics of Korean Medicine
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• v.32 no.3
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• pp.62-71
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• 2018

Objectives Childhood & adolescence is the most crucial period in a lifetime to learn ability to maintain one's health even though this period usually has the least death rate or illness. Smoking is the one of the most common cause of one's death and illness, but can be avoidable. The purpose of this study is to investigate the effectiveness of the smoking cessation education through the program by school doctor of Korean medicine. Methods In 2017, the Seoul metropolitan office of education and the Seoul Korean medicine association implemented the program by school doctor of Korean medicine including smoking cessation education for 2 elementary schools (470 students) and 3 middle schools (1,106 students). And we carried out questionnaire to 211 people (1 elementary school and 1 middle school) and analyzed the results. Results The score in regards to smoking knowledge, before and after education, was increased from 3.35 to 4.22. The score in regards to negative perceptions about smoking, before and after education, was increased from 17.62 to 18.08. Conclusions After the smoking cessation education through the program by school doctor of Korean medicine, participants were highly satisfied because their knowledge about the smoke was increased as well as negative perception of the smoke. Therefore, development and application of smoking cessation programs will be needed.

• The Journal of Pediatrics of Korean Medicine
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• v.32 no.4
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• pp.87-102
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• 2018

Objectives This study aims to investigate the effect of the Korean medicine in treating dysmenorrhea as a part of school health program (SHP) and satisfaction rate of the participated students in this program. With this study, we tried to contribute to the development of health promotion program of Korean medicine. Methods As part of the 'Korean Medicine Health Promotion Project', we conducted a dysmenorrhea program at one of many high schools in Eumseong-gun. From April to June 2018, we conducted the promotion program a total of 7 times and analyzed the questionnaire regarding satisfaction and the monthly experience of menstruation. Results The study participants' grade distribution was $2^{nd}$ grade 32, $3^{rd}$ grade 23 with a total 55 students. Mean dysmenorrhea VAS was $6.07{\pm}2.10$, and the mean number of visits to the dysmenorrhea program was $3.61{\pm}1.47$. There were no significant differences in the average number of visits between grades. Overall satisfaction was $4.06{\pm}0.97$, teacher satisfaction was $4.29{\pm}1.10$, and lecture satisfaction was $4.18{\pm}0.95$. Dysmenorrhea decreased but was not statistically significant. Conclusions Korean medicine is appropriate for the health promotion program. With cooperation and support from local schools, it will be very possible to carry out a successful business. It is also necessary to organize the program according to the viewpoint of youth and to interact with the students.