• The Journal of Korea Assosiation for Disability and Oral Health
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• v.12 no.2
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• pp.87-91
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• 2016

Pierre Robin syndrome (PRS) is characterized by the triad of congenital mandibular hypoplasia, glossoptosis and cleft palate. Infant PRS patients are frequently suffering from upper airway obstruction, gastroesophageal reflux and growth retardation caused by above mentioned problems. We report a dental caries treatment of 3-year old girl with Pierre Robin syndrome with multiple caries. The cause of multiple caries was mainly presumed as patient's eating habit caused by her general condition. She had some feeding problems and had history of gastric tube. She was still using milk bottle and took more than an hour to finish a meal. The treatment was performed under general anesthesia considering patient's condition; mild autism, poor cooperation and respiratory problem due to micrognathia. Severely affected upper incisors were treated with pulp treatment and restored with zirconia crown for esthetic purpose. Lower incisors were treated with pulp treatment and restored with composite resin. Upper right first primary molar was restored with stainless steel crown and other primary molars were treated with composite resin. There were no postoperative complications. According to her parents, the patient's compliance to oral hygiene management was greatly improved after the treatment since she was very pleased with the esthetic result and highly motivated by her looks. The treatment without sedation or general anesthesia would be possible once the airway is improved as the mandible grows.

• Journal of Microbiology and Biotechnology
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• v.18 no.10
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• pp.1717-1721
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• 2008

Severe acute respiratory syndrome (SARS) is a life-threatening emerging respiratory disease caused by the coronavirus, SARS-CoV. The nucleocapsid (N) protein of SARS-CoV is highly antigenic and may be a suitable candidate for diagnostic applications. We constructed truncated recombinant N proteins (N1 [1-422 aa], N2 [1-109 aa], and N3 [110-422 aa]) and determined their antigenicity by Western blotting using convalescent SARS serum. The recombinants containing N1 and N3 reacted with convalescent SARS serum in Western blotting. However, the recombinant with N2 did not. In ELISA using N1 or N3 as the antigens, positive results were observed in 10 of to (100%) SARS-CoV-positive human sera. None of 50 healthy sera gave positive results in either assay. These data indicate that the ELISA using N1 or N3 has high sensitivity and specificity. These results suggest that the middle or C-terminal region of the SARS N protein is important for eliciting antibodies against SARS-CoV during the immune response, and ELISA reactions using N1 or N3 may be a valuable tool for SARS diagnosis.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.12
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• pp.4928-4934
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• 2010

Dental health care in modern society has gradually been developing with patients'expectation, desire, and medical knowledge according to the changes in the medical industry. Dental marketing strategy is necessary to construct a better dental health environment in order to cope with customers' changes and desire. The purpose of this study was to evaluate the positive comments by word-of-mouth experience, quality of dental clinic service and customer satisfaction among dental patients. The study surveyed 5oo subjects being treated at 6 dental clinics in Seoul and Gyeonggi province. It was conducted from March 22 to April 9, 2010. The subject groups with a positive experience through word - of - mouth who had a perception about the quality of dental clinic service (p<.001) and customer satisfaction (p<.001) were higher than other groups who had no comments on their dental treatment and clinics. The results showed that there was a correlation(r=. 852, p<.001) between the positive comments by word-of- mouthabout the quality of dental clinics service and customer satisfaction. The perception of dental clinic service and patients' satisfaction with positive comments by word of mouth was highly recognized by older and more experienced patients of dental treatment. Therefore, the results suggest that empirical information on important factors about strategic marketing lead to positive comments by word of mouth experience for patients in dental clinics.

• Applied Microscopy
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• v.38 no.3
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• pp.259-264
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• 2008

The stabilized $ClO_2$ gas has been used for many years by the food industry as a strong oxidizing and sanitizing agent that has broad and high biocidal effectiveness. Therefore, "stabilized $ClO_2$" gas may be used in fields of disinfectant and sterilization. But, there have been few studies on the decomposition-inhibition effect of stabilized $ClO_2$ gas with passage of time. The main purpose of this study was to examine the decomposition-inhibition effect of stabilized $ClO_2$ gas and the morphological change of kidney by measuring of the light and electron microscope. Sprague-Dawley (SD) rats weighting from 230 gm to 250 gm were used as experimental animals. Under ether anesthesia, the right kidney of rat was obtained. Put each sample in $37^{\circ}C$ and humidity $80{\pm}5%$ incubator, we obtained each sample after 0 day, 1 day, 2 days, 3 days, 4 days and 5 days. We proceeded the observation of light and electron microscope. The results obtained in this study reveal that stabilized $ClO_2$ gas is an effective decomposition inhibitor until 2 days that was conducted at $37^{\circ}C$ and humidity $80{\pm}5%$ conditions.

• The korean journal of orthodontics
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• v.39 no.6
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• pp.383-392
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• 2009

Objective: The purpose of this study was to evaluate the efficacy of a slim bristled toothbrush compared with a V-shaped orthodontic toothbrush in patients with fixed orthodontic appliances. Methods: Thirty four orthodontic patients receiving edgewise treatment were randomly assigned to two groups, a slim bristled toothbrush (Nano silver slim care) and a V-shaped toothbrush (Oral-B). Plaque index, gingival index and bleeding index were recorded at the beginning of the study (baseline), 2 weeks, 4 weeks and 6 weeks after new toothbrushes were supplied and the results were analyzed statistically. Results: No statistically significant differences were found for plaque index, gingival index and bleeding index between toothbrush groups during the 6 weeks. Plaque and gingival indices were decreased at 2 weeks and 4 weeks but increased at 6 weeks in both toothbrush groups. Bleeding index in the V-shaped toothbrush group showed the lowest value at 2 weeks then increased at 4 weeks and 6 weeks but in the slim bristled toothbrush group decreased from 2 weeks through 6 weeks to under baseline levels. Patients in their twenties had significantly lower values than teenagers in the slim bristled toothbrush group (p < 0.013). Conclusions: The results would suggest that both of the toothbrushes are equally effective but the use of a slim bristled toothbrush may be of benefit in promoting gingival health for fixed orthodontic appliance patients in their twenties and over.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.1
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• pp.335-340
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• 2010

In accordance with the increasing possibility that the new and reoccurring epidemics continuously appearing abroad flow into Korea, it is very important to evaluate the efficiency of quarantine management projects of National Quarantine Station. This study adopted the pairwise comparison approach using the analytical hierarchy process(AHP) that has been recognized with its scientific adequacy for allocating the weight, the relative importance of evaluation components. AHP technique is evaluated to be distinguished in measuring the impact by making hierarchy of, simplifying and systemizing the complicated multi-criteria decision making problems. The weights by evaluation indexes were 0.2 in the organization evaluation field and 0.8 in the service and program field. The quarantine business showed the highest value, 0.45, in the service and program field. The indexes were classified into the upper category (organization evaluation field, service and program evaluation field) and lower category (input/process/result/quarantine field, inspection field, hygiene management field, pathogenic organ investigation and monitoring field, epidemics prevention promotion/education field). The evaluation indexes that were finally selected were applied to the actual businesses in National Quarantine Station. Next, the minimum evaluation indexes were selected and so the evaluation system on the businesses in National Quarantine Station was more systemized.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.15 no.1
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• pp.55-59
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• 2019

Pierre Robin sequence(PRS) is characterized by a triad of clinical signs: micrognathia, glossoptosis and cleft palate. These anatomical deformities of PRS predispose patients to respiratory problems and feeding difficulties at birth. Maintaining oral hygiene and enduring dental treatment are complicated by their general conditions of PRS patients. We present a case of dental treatment of PRS patient under general anesthesia. A 3-year-old boy with PRS visited Seoul National University Dental Hospital for caries treatment. Clinical and radiographic examinations revealed multiple carious lesions. Considering the patient's medical condition and compliance of treatment, dental treatment under general anesthesia was decided. Despite expected challenges of managing the airway of the patient, intubation was performed successfully. The patient was treated with pulp treatments and restorations using composite resin and stainless steel crowns. No complications were observed during and after the procedure.

• Journal of the Korea Society of Computer and Information
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• v.26 no.5
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• pp.87-93
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• 2021

This study was conducted to identify the relationship between the willingness to leisure activity and job satisfaction of dental hygienists and to suggest the need to expand opportunities for the will to leisure activity. The degree of job satisfaction was 3.84 points, and the willingness to leisure activity was analyzed to prioritize exchange with the community. As a result of the analysis of the correlation between job satisfaction, turnover intention, and willingness to leisure activity, all three items show a strong correlation. If job satisfaction is high, then the willingness to leisure activity is high and the intention to turn over is low, and if the will to leisure activity is high, then job satisfaction is high and turnover intention is low. Results of regression analysis to establish measures to increase job satisfaction, turnover intention (β=-0.551), leisure use (β=0.368), health status (β=0.139), current working years at work (β=0.069), number of patients visiting the hospital during the day (β=-0.056) were analyzed in order of effect. It is judged that there is a need to establish a plan to provide an optimal working environment in consideration of the intention to turnover, leisure activity, health status, working years at work, and the number of patients visiting the hospital during the day.

• Applied Microscopy
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• v.39 no.4
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• pp.325-332
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• 2009

It has been well known that grapefruit seed extract (GSE) have effects on the deodorization and a wide range disinfectant. But anybody do not research about the decomposition-inhibition effect of GSE. The present study was performed to investigate the decomposition-inhibition effect of GSE by measuring the microscope and electroscope observation with passage of time. A total of 30 healthy Sprague-Dawley (SD) rats weighting from 230 gm to 250 gm were used as experimental animals. One group that do not treated by GSE named control group and the other group that treated by 55% GSE named Experimental group. Under ether anesthesia, right kidney was obtained. Put each sample in $37^{\circ}C$ and humidity $80{\pm}5%$ incubator, we obtained each sample after 0 day, 1 day, 2 days, 3 days, 4 days and 5 days. 4 ${\mu}m$ of paraffin sections were obtained, stained H-E stain and observed by use of a microscope. Morphological change in tissue was similar to control 1 day group and experimental 3 days group. Therefore, decomposition-inhibition effect of GSE continued about 2 days and it protected necrosis. According to above results, the author suggest that 55% GSE is an effective decomposition inhibitor until 2 days on $37^{\circ}C$ and humidity $80{\pm}5%$ conditions.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.14 no.1
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• pp.36-40
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• 2018

CATCH22 syndrome or DiGeorge syndrome is a medical acronym of cardiac defects, abnormal facial appearances, thymic hypoplasia, cleft palate, and hypocalcemia. Patients with CATCH22 syndrome are susceptible to infection due to an absent or hypoplastic thymus and often have difficulties in maintaining good oral hygiene, which may require dental treatment. We present a case of dental treatment for the uncooperative child with CATCH22 syndrome under general anesthesia. A 4-year-old, 14.8 kg boy with CATCH22 syndrome visited Seoul National University Dental Hospital for dental check up. The patient had multiple caries requiring dental treatment. He experienced the corrective heart surgery due to Tetralogy of Fallot a few years ago. General anesthesia was planned because his heart rate and vital sign had shown unstable during the previous conscious sedation procedure. Dental restorative treatments were successfully performed and no complications were observed during and after the procedure. Safe and effective dental management of the patients with CATCH22 syndrome could be performed with the help of general anesthesia and careful monitoring.