• Journal of Oral Medicine and Pain
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• v.38 no.2
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• pp.137-142
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• 2013

Oral Medicine includes temporomandibular disorder, orofacial pains such as neuropathic pain, soft tissue diseases, halitosis, laser treatment, snoring, sleep apnea and identification through forensic dentistry etc. Such diseases are relatively common and cause great inconvenience and pain to the patients, as well as incur fatal health scare at times. In terms of oral medicine, the number of orofacial patients is growing due to a change in the life style and an increased stress as time goes in contemporary society and the demand of areas requiring oral medical professionalism, such as soft tissue lesions, snoring and sleep apnea, forensic dentistry evaluation and others are rapidly ascending. Consequently, among the areas in dental science, the calls for the expertism in oral medicine and its role are mounting. Analyzing the distribution according to disease entity, symptoms, duration of disease, and the prehistory courses of new patients visiting the department of oral medicine in a year provides information of the role and the relative importance of oral medicine in prospect and enables effective diagnosis and treatments for the patients. Therefore, in the present study, by analyzing new patients visiting the oral medicine clinic in our dental hospital for a year and by evaluating the role and the professionalism in future oral medicine, the authors concluded the followings: 1. It was founded that new patients to oral medicine mainly had temporomandibular disorders, soft tissue diseases, and neuropathic pains. 2. The number of patients with temporomandibular disorder appeared to be the highest percentage and the order within this was the patients with combined disorders, muscle disorder, and internal derangement of joint disc. 3. The number of patients with xerostomia appeared to be the highest percentage within soft tissue disease, followed by lichen planus and recurrent apthous ulcers. 4. The number of patients with burning mouth syndrome appeared to be the highest percentage within neuropathic pain.

• Sleep Medicine and Psychophysiology
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• v.3 no.1
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• pp.68-78
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• 1996

Objective : The Mini-Mental State Examination(MMSE) and Brief Cognitive Rating Scale(BCRS) are frequently using screening tests fur evaluating the cognitive function in clinical practice and research. The authors tried to evaluate the clinical usefulness of these tests for the patients with non-traumatic subcortical cerebrovascular disease. Method : We administered the MMSE and BCRS to 85 patients and 195 normal control group. In order to compare the test results according to the lesion site, we divided patients into left sided lesion group(21 patients), right sided lesion group(31 patients) and both sided lesion group(13 patients). Their cognitive function was evaluated by the BNA and daily living functional activity was examined by the IADLs(Instrumental Activities of Daily Living Scale)and GERRI(Geriatric Evaluation by Relative's Rating Instrument). Results : The results are as follows : 1) In the BNA, the patients scored significantly lower than control group at all items(except Right-Left Orientation and Motor Impersistence), but there were no difference in the MMSE(total score and all 5 items), and only 2 items(recent memory and self-care) were significantly different between two groups in the BCRS. 2) In the comparison by lateralization, there were significant differences among three groups at 3 items(Left Tactile Form Perception, Left Finger Localization and Right Finger Localization) in the BNA. But, there were no difference in the MMSE and BCRS. 3) In the correlation between daily living functioning and the MMSE/BCRS, control group showed no relation(except item of cognitive functioning), but patient group was significantly correlated with 3 items(social functioning, instrumental activities of daily living and cognitive functioning). Conclusions : These findings suggest that MMSE and BCRS are not useful as the test for cognitive function and discrimination of lateralization in patients with non-traumatic subcortical cerebrovascular disease. However, scores of these tests may be related with the functional level(such as daily living function) of patients.

• Sleep Medicine and Psychophysiology
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• v.21 no.2
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• pp.61-68
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• 2014

Objective: The aim of the present study is to assess the prevalence and related risk factors of suicide ideation among middle and high school students in an urban area. Methods: We surveyed 3,691 middle and high school students (2,159 male, 1,532 female, 11-19 years of age) using a self-report questionnaire that covered basic socio-demographic data, academic achievements, presence of physical or psychiatric illness, sleep duration on weekdays, time spent at private academies on weekdays and weekends, and subjective needs for counseling. The Beck Depression Inventory (BDI) and Reynolds' Suicidal Ideation Questionnaire (SIQ) were included in the survey. Results: The prevalence of students with high suicide ideation ($SIQ{\geq}62$) was 4.6%. In a logistic regression model, female sex (p = 0.002), younger age (p < 0.001), poor academic achievement (p = 0.043) and higher score of BDI (p < 0.001) were associated with a higher SIQ score. In addition, younger age (p = 0.045) and a higher BDI score (p < 0.001) were associated with a higher SIQ score adolescents having high suicide ideation ($SIQ{\geq}62$). Conclusion: Related risk factors of suicide ideation in adolescents were female sex, younger age, poor academic achievement, and a depressive mood. It would be especially helpful to pay more attention to younger adolescents and a depressive mood as a high-risk group. The understanding of these factors will be helpful for providing an effective suicide screening and prevention program for adolescents.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1991.06a
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• pp.32-32
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• 1991

성대의 점막하 조직의 부종을 특징으로 하는 폴립양 성대는 음성의 남용 및 상기도에 대한 다양한 자극 요인들에 의하여 발생된다고 보고되어 있으며, 현재까지 부종의 기전 및 병태에 대하여도 혈괴의 유리화 현상(hyalinization), 또는 단순한 혈관의 투과력 증대 등의 논란이 많은 실정에 있어 치료방법 역시 학자에 따라 견해를 달리하고 있다. 이에 저자들은 폴립양 성대의 치료에 도움을 얻고자 최근 5년간 본 교실에서 경험한 폴립양 성대 34례(남자 18예, 여자 16예, 평균연령 53.7세)에 대한 임상 소견 및 저자들의 치료 성적을 분석 검토하여 다음과 같은 결과를 얻었다. 1. 측별로는 총 34예중 양측 23예(67.6%), 편측 11예(32.4%)이었다. 2. 동반질환으로 성대에 타 질환이 있었던 예가 9예(후두용 5예, 과각화증 3예, 성대마비 1예 ; 26.5%), 수면무호흡증 5예(14.7 %)이었으며 전신질환이 있었던 예가 4예(기관지 천식 2예, 폐결핵 2예 ; 11.8%)이었다. 3. 유발요인으로는 음성남용 7예(20.6%), 상기도감염 3예(8.8%), 흡연 26 예 (76.5%)이었다. 4. 공기역학검사 및 청각심리검사가 가능하였던 14예에서 최대발성지속시간이 정상이하이었던 예가 10예(71.4%), 발성율이 정상이상이었던 예가 9예 (64.3%)이었으며, 애성의 특징도 조호성(rough)이 10예(71.4%)로 가장 많았다. 5. 총 34예를 sucking technique를 적용하여 수술적 치료를 하였는데 음성이 호전된 경우는 32예(정상 15예, 호전 17예 : 94.1%)이었으며 호전되는데 걸린 평균 기간은 2.8개월이었다. 이상의 성적으로 보아 폴립양 성대는 국소 또는 전신적으로 동반질환이 많고 흡연 등의 만성 자극 요인이 있으며 술후 음성 호전에 걸리는 기간이 길어 보다 복합적인 측면에서 치료에 임하여야 할 것으로 사료된다. with such configuration.trap with 2.88[eV] deep of injected space charge from the chathode in the crystaline regions. The origin of ${\alpha}$$_2$ peak was regarded as the detrapping process of ions trapped with 0.9[eV] deep originated from impurity-ion remained in the specimen during production process of the material, in the crystalline regions. The origin of ${\beta}$ peak was concluded to be due to the depolarization process of "C=0"dipole with the activation energy of 0.75[eV] in the amorphous regions. The origin of ${\gamma}$ peak was responsible to the process combined with the depolarization of "CH$_3$", chain segment, with the activation energy of carriers from the shallow trap with 0.4[eV], in he amorphous regions.의 증발산율은 우기의 기상자료를 이용하여 구한 결과 0.05 - 0.10 mm/hr 의 범위로서 이로 인한 강우손실량은 큰 의미가 없음을 알았다.재발이 나타난 3례의 환자를 제외한 9례 (75%)에서는 현재까지 재발소견을 보이지 않고 있다. 이러한 결과는 다른 보고자들과 유사한 결과를

• Journal of Yeungnam Medical Science
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• v.6 no.2
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• pp.57-62
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• 1989

Clonidine, ${\alpha}2$-adrenergic agonist, applied spinally or epidurally has been shown to be effective in blocking noxious stimuli in human applications. The purpose of this study is to evaluate the analgesic effect of epidurally administered clonidine. In 40 patients undergoing hemorrhoidectomy or anal fistulectomy, 1.33% lidocaine 15ml (Group I) or 1.33% lidocaine mixed with $75{\mu}g$ clonidine(Group II) administered epidurally through sacral hiatus. Intraoperative changes of vital signs and duration of postoperative analgesic effects were observed. The results were as follows : 1) In the group I, average analgesic duration was 2.42 hours. 2) In the group II, average analgesic duration was 7.32 hours. 3) After epidural clonidine injection, the decrease in heart rate and blood pressure was not significant without sedation. 4) Postoperatively, any complaints related clonidine were not reported. In conclusion, postoperative pain control with epidural clonidine was effective.

• Sleep Medicine and Psychophysiology
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• v.26 no.1
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• pp.44-48
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• 2019

Objectives: Insomnia is one of the most prevalent sleep disorders. Recent studies suggest that cognitive and physical arousal play an important role in the generation of primary insomnia. Studies have also shown that information processing disorders due to cortical hyperactivity might interfere with normal sleep onset and sleep continuity. Therefore, focusing on central nervous system arousal and normalizing the information process have become current topics of interest. It has been well known that neurofeedback can reduce the brain hyperarousal by modulating patients' brain waves during a sequence of behavior therapy. The purpose of this study was to investigate effects of neurofeedback therapy on electroencephalography (EEG) characteristics in patients with primary insomnia. Methods: Thirteen subjects who met the criteria for an insomnia diagnosis and 14 control subjects who were matched on sex and age were included. Neurofeedback and sham treatments were performed in a random order for 30 minutes, respectively. EEG spectral power analyses were performed to quantify effects of the neurofeedback therapy on brain wave forms. Results: In patients with primary insomnia, relative spectral theta and sigma power during a therapeutic neurofeedback session were significantly lower than during a sham session ($13.9{\pm}2.6$ vs. $12.2{\pm}3.8$ and $3.6{\pm}0.9$ vs. $3.2{\pm}1.0$ in %, respectively; p < 0.05). There were no statistically significant changes in other EEG spectral bands. Conclusion: For the first time in Korea, EEG spectral power in the theta band was found to increase when a neurofeedback session was applied to patients with insomnia. This outcome might provide some insight into new interventions for improving sleep onset. However, the treatment response of insomniacs was not precisely evaluated due to limitations of the current pilot study, which requires follow-up studies with larger samples in the future.

• The Korean Journal of Health Service Management
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• v.11 no.4
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• pp.169-178
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• 2017

Objectives : In this study, we investigated the correlation of mental-and oral-health status with periodontal disease. Ultimately, we sought to make a positive contribution to the promotion of periodontal health and the prevention of periodontal disease. Methods : This study was analyzed using the data of KNHANES 2013-2015. The participants of this study were between 20 and 64 years old. The final selection was 1,512 adults. Results : Participants with a sleeping time of less than 6 hours and those who recognized stress showed higher periodontal disease. Number of decaying teeth, oral-health status, toothaches, and chewing problems were associated significantly with periodontal disease. To investigate the effects of general characteristics and mental and oral-health status on periodontal disease, a logistic regression analysis was conducted. Sex, age, education level, smoking status, oral-health status, and chewing problems were variables that affected periodontal disease. Conclusions : This study showed that mental-and oral-health status is closely related to periodontal disease. Therefore, it is expected that this will be used as basic data to effectively improve periodontal disease in adults.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.04a
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• pp.104-104
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• 2018

흑구기자와 구기자에는 류신, 메티오닌, 페닐알라닌, 이소류신 등의 아미노산이 많이 함유되어 있고 무기염류, 베타카로틴, 비타민C 등이 다량으로 함유되어 있다. 이러한 생리활성 물질에 의하여 항산화 작용이 매우 큰 것으로 알려져있으며 간 기능보호, 콜레스테롤 제거, 자양강장 등의 효능이 있는 것으로 알려져있다. 특히 흑구기자에는 안토시아닌의 함유량이 매우 많아 수면장애 개선과 항노화, 피부주름억제, 피부재생효과 등이 있는 것으로 알려져있다. 또한 이러한 안토시아닌 색소는 암세포 발생과 전이를 억제하는것으로도 알려져있다. 즉, 구기자와 흑구기자는 혈액순환을 개선 시키고 혈관의 탄력을 증강시키어 심혈관질환을 개선하는 효과가 있다. 따라서 본 실험에서는 중국의 고원지대(해발 2500m 이상)에서 자생하고있는 구기자와 흑구기자의 생리활성 물질을 분석하여 항산화 효과를 검증하고자 하였다. 그 결과 총 폴리페놀 함량은 흑구기자와 구기자에서 비슷한 함유량을 나타내었다. 안토시아닌의 함량은 구기자보다 흑구기자에서 다량으로 함유되어 있다. 항산화 활성은 구기자보다 흑구기자에서 훨씬 더 양호한 결과를 나타내었다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.660-662
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• 2022

Due to the prolonged aftermath of COVID-19, the number of modern people suffering from stress and mental illness is increasing. Recently, various methods of color therapy are being studied using LED lighting to improve concentration, relieve stress, manage skin, and improve sleep quality. In this paper, pulse waves are measured and heart rate variability is extracted using a PPG (Photoplethysmogram) sensor to analyze a person's mental and physical state. Using RGBLED and Arduino, we propose a mood lighting system that automatically changes colors according to changes in mental and physical conditions by producing color lighting of various wavelengths, which are mainly used to stabilize the mental state.

• Tuberculosis and Respiratory Diseases
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• v.41 no.2
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• pp.103-110
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• 1994

To find out the predictors of nocturnal arterial oxygen desaturation in patients with respiratory diseases, transcutaneous oxygen saturation($StcO_2$) monitoring studies using a pulse oximeter were performed during sleep in 20 patients. $StcO_2$ was decreased more than 4% from the baseline value in 18 patients(90%) and more than 10%("Desaturator") in 8(40%). Five of the seven patients(71.4%) with awake $PaO_2$<60mmHg and three of the thirteen patients(23.1%) with awake $PaO_2{\geq}60mmHg$ were "desaturators". The awake $PaO_2/FIO_2$ and $PaO_2/PAO_2$ could distinguish "desaturator" from "nondesaturator", and $PaO_2,\;SaO_2$ or $StcO_2$ could not. These results suggest that the nocturnal oxygen desaturation depends on the severity of the underlying disease rather than the baseline $PaO_2$. Anthropomorphic and lung function factors could not separate between "desaturator" and "non-desaturator", and about a quater of patients with a wake $PaO_2{\geq}60mmHg$ developed significant desaturation. Therefore, it is necessary to monitor the nocturnal arterial oxygen saturation in patients with respiratory diseases regardless of their severity of airflow obstruction or awake $PaO_2$.