• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.4
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• pp.522-530
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• 2009

The purpose of this study was to evaluate the clinical effectiveness of new streptococcus detection system which used monoclonal antibody against Streptococcus mutans. 92 children aged between 2 and 8 were involved in this experiment and their saliva samples were collected for testing. Streptococcus mutans were measured by both monoclonal antibody-based detecting system (Saliva-$check^{TM}$ Mutans) and dip slide detecting system($Dentocult^{TM}$-SM). The results showed that Saliva-$check^{TM}$ Mutans levels had a significant correlation with dfs rate of subjects and the two test kits, Saliva-$check^{TM}$ Mutans and $Dentocult^{TM}$-SM were shown to have a good correlation although they were based on different mechanism.

• Journal of the korean academy of Pediatric Dentistry
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• v.46 no.4
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• pp.400-408
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• 2019

The purpose of this study is to identify the most common canal type in primary molars and the correlation between their roots and canals. A comprehensive understanding of root canal morphology will lead to more successful root canal treatment. Computed Tomography (CT) images from 114 children (81 boys, 33 girls) aged 3 - 7 years were obtained. The locations and numbers of roots and canals were evaluated, and the relationship between root and canal parameters was determined. The most commonly observed canal morphology in primary maxillary molars were mesio-buccal, disto-buccal and palatal canal. Primary mandibular molars most frequently contain mesio-buccal, mesio-lingual, disto-buccal and distolingual canal. All the roots of the primary maxillary molars except for the mesio-buccal root, each had 1 canal while there were 2 canals observed in each root of primary mandibular molars. Without exception, all mesial roots in primary mandibular 2nd molars had 2 canals. In case when either the palatal root in a primary maxillary molar or the distal root in a primary mandibular molar was separated into 2 roots, each root seemed to have its own canal. Even though the disto-buccal and palatal roots were fused into 1 root in primary maxillary molars, this fused root had tendency to have 2 separate canals. Primary mandibular molars showed similar canal morphologies between left and right molars in the same patient, while the primary maxillary molars did not.

• Journal of Industrial Convergence
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• v.20 no.4
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• pp.47-55
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• 2022

The study was conducted to identify the effectiveness of nursing skills practice using VR(Virtual Reality) on competency and confidence in nursing skills, learning self-efficacy, and satisfaction of nursing students. This study used a randomized controlled trial design. The 35 patients in the experimental group took nursing skills practice using VR and The 35 patients in the control group took fundamental nursing skills practice. The data were conducted on confidence in nursing skills, learning self-efficacy, satisfaction, and nursing skills' competency. The collected data were analyzed using the SPSS WIN 23.0 program. As a result of the study, there were no significant differences between the experimental and control groups in competency and confidence in nursing skills, learning self-efficacy, and satisfaction. However, confidence in nursing skills and learning self-efficacy increased after practice in both groups. The results indicate that nursing skills practice using VR was effective in improving nursing skills.

• Journal of the korean academy of Pediatric Dentistry
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• v.27 no.2
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• pp.262-273
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• 2000

The purpose of this study was to investigate the difference between the children who experienced nursing caries and the children who were caries-free in the prevalence of enamel hypoplasia and DMF rate and to analyse causal factors from questionnaires. Oral examination was performed on 101 children(nursing caries group-45, caries-free group-56)in the 1994 at first, later in 1999. Parents were asked to write questionnaires. As a cotrol group, 50 children were chosen randomly. The results obtained from this study were as follow: 1. The prevalence of enamel hypoplasia of the children who experienced nursing caries was higher significantly than that of the all of the examined children (P<0.01). 2. DMF Tate of the children who experienced nursing caries was higher significantly than that of the children who were caries-free (P<0.01), and higher than that of the all of the examined children also(P<0.05). 3. The children who experienced nursing caries performed tooth brushing less frequently (P<0.05) and started tooth brushing later than the children who were caries-free (P<0.01). 4. The children who experienced nursing caries ate cariogenic food more frequently(P<0.05) and had higher preference(P<0.05) than the children who were caries free. 5. The children who experienced nursing caries showed lower frequency of periodic dental examination than the children who were caries-free or centre) group(P<0.05).

• Journal of the korean academy of Pediatric Dentistry
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• v.39 no.2
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• pp.145-152
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• 2012

Whenever pediatric dentists choose the preformed stainless steel crowns for restoration of primary molars, we usually prefer the crown forms that most fit to the abutment teeth. Despite some previous reports on significant ethnic difference in the size and shape of tooth crowns in primary dentition, only the imported products have been available to date, which might show some discrepancy with tooth anatomy of Korean. However, a domestic product of preformed stainless steel crown has been marketed recently that is expected to show more accurate fit to the primary tooth of Korean. To investigate the morphological characteristics of primary molars of Korean children, their mesiodistal and buccolingual diameters from the dental casts of 263 children in Pusan and Kyungsangnamdo province were measured by digital calipers. The measured data were compared with those of the three types of preformed stainless steel crowns(3M ESPE Stainless Steel Primary Molar Crown, Kids Crown, Sankin Anatom Primary Crown) by statistical processes with regression analysis. The results were as follows: 1. In every primary molar crown of three brands, the bucco-lingual width to mesio-distal width ratio (MD-BL ratio) showed higher values compared with those of natural teeth. 2. While the products of 3M ESPE and Shinhung showed similar features, those of Sankin showed some difference from both, and these difference was more marked in mandibular primary molars. 3. The nearer is the mesio-distal width of the crown to the average, the better was the adaptation of the preformed crown, and the reverse was true. 4. The teeth which revealed more discrepancy between preformed crown and natural tooth were upper and lower first primary molars.

• The Korean Journal of Air & Space Law and Policy
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• v.30 no.2
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• pp.83-153
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• 2015

As our economy grows and the number of aircraft increase, the number of civil execution against aircraft cases are likely to increase as well in the future. The purpose of this article is to present the legal theory on the civil execution against aircrafts by drawing on the legal theory on the civil execution against vessels which constitute a relatively large number of cases thus observed. The provisions of the civil execution against immovables or vessel, shall basically apply mutatis mutandis to the civil execution against aircraft or light aircraft. The civil execution against ultra-light flying devices or a foreign aircraft shall be executed in conformity with the civil execution against movables. There are a compulsory auction, an auction to execute a security right to aircraft, and an auction under the right of retention, etc. in the civil execution against an aircraft. A compulsory execution against an aircraft means an execution carried out by a creditor against a debtor's aircraft to obtain satisfaction of claims for the purpose of payment of money. The court of execution of a compulsory execution against an aircraft shall be the district court having jurisdiction over the airport of stoppage or storage of such aircraft at the time of seizure. The forums of execution of a compulsory execution against an aircraft shall be exclusive forums. When a court has rendered an order on commencing an auction, it shall order an execution officer to receive a certificate of the aircraft's registration and other documents as required for its operation, and to submit them to the court. A court may revoke the procedures for a compulsory auction when an execution officer fails to obtain a transfer of the aircraft's registration certificate, etc. and the location of the aircraft is not evident, not later than an elapse of 2 months from the date on which an order on commencing an auction has been rendered. In the case where it is deemed that there exists a business-related need or other based on proper reasoning, the court may permit the aircraft's operation, upon the motion submitted by the debtor. In this case, there shall be a consent from the creditor, the highest bidder, the next highest bidder and successful bidder. A court may, upon a motion submitted by the creditor, make the dispositions required for observing and preserving the aircraft. When a debtor has submitted the documents under subparagraph 2 or 4 of the Article 49 of the Civil Execution Act, and furnished the guarantee equivalent to the claims of the execution creditors and the creditors demanding a distribution and to the costs for execution, before a declaration of bid, the court shall, upon request, revoke other procedures than those for distribution. The provisions of a obligatory auction against vessel or aircraft and an auction to execute a security right to real estate or vessel, shall apply mutatis mutandis to an auction to execute the security right to aircraft. In an auction to execute the security right to aircraft case, an executive title is not necessary. An executory exemplification is not necessary in an application for an auction to execute the security right to aircraft. A court should examine the existence of security right and claim secured. No order on commencing an auction procedure shall be issued with non-existence or invalidity of the security right and absence or extinguishment of the claim secured. Furthermore, these prohibitions are the reason of a decision on non-permit for sale, the court overlooked these prohibitions, and the decision on a permit for sale became final and conclusive, the successful bidder who paid the price and registered of ownership could not acquire ownership of the aircraft sold. A court may render a ruling to put plural aircrafts up for a blanket auction, only when they are in restraint and related matter (Supreme Court Order 2001Ma3688 dated on August 22, 2001). A righter of retention on aircraft may file a request for an auction against the aircraft. The provisions of an auction to execute a security right to aircraft shall apply mutatis mutandis to the formal auction. Airport facility fee and an aircraft are not in restraint and related matter, so an airport management corporation does not hold the right of retention on the aircraft (Supreme Court Decision 2011Da29291 decided on April 10, 2014). In an auction in accordance with the right of retention, all encumbrances (e.g., mortgages) on the sold aircraft shall be extinguished by a sale under the legal conditions for sale. Not only creditors who have claims for preferential payment but also general creditors could demand for distribution. The precedence of the claim of the right of retention on aircraft and that of general creditor's claims are equal.

• Journal of the korean academy of Pediatric Dentistry
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• v.37 no.1
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• pp.65-72
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• 2010

General anesthesia has been researched and developed in dentistry as on type of management technique to sedate patients who may be uncontrollable or require medical consideration. There has been continuous research into this area, but analysis of large set of patients over a sustained period of time is lacking. Thus, this study analyzes the records of patients who received general anesthesia at the Yonsei University Dental Hospital Department of Pediatric and Clinic for the Disabled. 1. Patient's age ranged from 1 to 66, with under 5 being the largest group with 410 members(38.5%). The study included more men than women, with 695 male members(65.3%). 2. Type of dental procedure performed were as follows(per person) : 5.6 Dental restoration; 2.3 Endodontic treatment of deciduous and primary teeth; 2.5 preformed crowning; and 1.6 extractions. Procedures took an average of 100 minutes. 3. 1022 patients(95.9%) received dental care under general anesthesia once and 43 patients(4.1%) received dental care under general anesthesia two or more times. Dentistry under general anesthesia has the many benefit. However, without appropriate post-treatment care, it is difficult to maintain good oral health. Therefore, it is important to improve the efficiency and safety of general anesthesia through future research.

• Journal of the korean academy of Pediatric Dentistry
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• v.27 no.1
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• pp.70-76
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• 2000

Congenital biliary atresia with progressive sclerosis of the intra- and extra-hepatic duct system occurs in 1 : 10,000 live births, and has a poor prognosis with an expected survival of less than 5 years. Etiology of biliary atresia is unclear, however, it is believed a genetic or developmental cause. The clinical characteristics include pronounced jaundice, hepatosplenomegaly, pruritus, steatorrhea, xanthomas, growth retardation, portal hypertension, bleedings, ascites and respiratory infections. Oral manifestations have seldom been reported in patients with biliary atresia, but there may be enamel hypoplasia, delayed tooth eruption, and green teeth. Early diagnosis and surgical intervention have decreased morbidity. returned growth and development to normal and improved the prognosis for survival. Authors report the clinical and radiologic characteristics, proper managements about two cases with biliary atresia.

• Journal of the Korea Convergence Society
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• v.11 no.6
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• pp.127-135
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• 2020

Busan is a world-class tourist city representing Korea, and more professional storytelling is needed in the development and promotion of products. The purpose of this study is to convey the image of Busan using storytelling techniques to foreigners, and then examine the correlation between the intention of purchase and oral intention of the related tourist souvenirs. A survey of 162 foreigners was conducted. The results showed that storytelling exposure and visiting experience on tourist sites and the design of tourist products have a certain correlation between the intention of purchase and oral intentions. Attractive souvenir design, visiting experience in the region and storytelling in the area involved are expected to contribute positively to the revisit of foreign tourists and the attraction of potential tourists. This study is meaningful in that it provides a new direction for promoting Busan tourism products, and in the future, the district will conduct additional verification for tourism cities other than Busan to verify the research hypothesis extensively.

• Journal of the korean academy of Pediatric Dentistry
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• v.32 no.1
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• pp.1-6
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• 2005

Injury of permanent teeth by trauma usually occurs to $8{\sim}10\;years$ old children, in mixed dentition. Fracture, dislocation, intrusion, extrusion, avulsion are the common types of trauma in teeth. The injuries which teeth are dislocated from the alveolar sockets can be treated by reduction and fixation. In this case report two children visited Wonkwang University Dental Hospital after the emergency treatment of tooth injury by other medical institutes. In these cases the injured teeth were not reducted properly and showed premature contact. So the teeth were dislocated from the alveolar sockets intentionally and fixed again in the proper position. Unproper reduction can cause premature contact, delay of healing, difficulty of mastication, and malocclusion. For this reason emergency rooms or local dental clinics where patients with dental trauma can be examined first, must know well about the treatment procedure of the injured teeth and should be consulted to the profession when necessary.