• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.9 no.4
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• pp.404-413
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• 2016

This study, based on the assumption that self-rated health status affects the use of health care utilization, aims to comprehend self-rated health status, as well as the differences in medical facility use depending on self-rated health status, and analyze according to chronic diseases to use it as the basis of a practical guide development for chronic disease patients' use of medical facilities. Used representative Korean Longitudinal Study of Ageing data to analyze 7,486 participants. There is a difference in Chronic disease patients' use of health care utilization depending on self-rated health, and this difference was the most apparent in Oriental healthcare service and dental treatment use. This study was unable to control all confounding variables affecting medical service use, so we want this studied to be used to assist future studies.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.12
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• pp.1971-1978
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• 2013

The aim was to be utilized as basic data in arranging efficient plan for removing halitosis by surveying correlation with halitosis components by each factor after measuring halitosis and analyzing components by subject of adults on halitosis. It targeted totally 160 people by 80 outpatients of 1 dental hospital, respectively, where is located in Daejeon and Chungnam, for 12 months from February 1, 2011 to January 30, 2012. As a result of analysis, in the halitosis measurement value of Oral chroma, it was shown to be 9.4% in case of being more than 112ppb in the measurement value of hydrogen sulfide, 20.6% in case of being more than 26ppb in the measurement value of methyl mercaptan, and 44.0% in case of being more than 8ppb in the measurement value of dimethyl sulfide, which was indicated to be the highest value among three components. Only the methyl mercaptan component and the dimethyl sulfide component, which were measured with oral chroma, stood at 0.578, thereby having been shown to have high positive correlation. Accordingly, a multilateral research is considered to be likely necessity as for diverse components of causing halitosis.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.4
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• pp.509-514
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• 2014

This study investigates how the five personality factors affect job-related stress levels owing to various causes and stress coping strategies in university students studying health-related majors, including dental hygiene. In subfactors for stress coping strategies (1) 'extrovert', 'likeable', and 'diligent' types for 'desire for social support' (2) 'diligent', 'extrovert,' 'likeable', and 'extrovert' types for 'problem-oriented' and (3) 'nervous,' and 'diligent' types for 'avoidance-oriented,' were shown to be most affected, in that order(SCi = ${\beta}0$ + ${\beta}1$ Neuroticism + ${\beta}2$ Extraversion + ${\beta}3$ Openness to Experience + ${\beta}4$ Agreeableness + ${\beta}5$ Conscienti- ousness + ei ).

• Korean Journal of Cognitive Science
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• v.18 no.4
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• pp.445-455
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• 2007

We present a new biometric identification system based on multi-view features of teeth using principal components analysis(PCA). The multi-view features of teeth consist of the frontal view, the left side view and the right side view. In this paper, we try to stan the foundations of a dental biometrics for secure access in real life environment. We took the pictures of the three views teeth in the experimental environment designed specially and 42 principal components as the features for individual identification were developed. The classification for individual identification based on the nearest neighbor(NN) algorithm is created with the distance between the multi-view teeth and the multi-view teeth rotated. The identification performance after rotating two degree of test data is 95.2% on the left side view teeth and 91.3% on the right side view teeth as the average values.

• Journal of Dental Rehabilitation and Applied Science
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• v.34 no.4
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• pp.317-323
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• 2018

When oral cancer develops in the maxilla, oro-nasal communication occurs after surgical treatment including removal of the primary site. Restoration through an obturator is necessary to prevent food from storing due to non-oral opening, and to ensure proper pronunciation and aesthetic restoration. In this case, the patient was treated with right hemi-maxillectomy due to oral cancer and has residual abutment and poor periodontal support due to the effect of head and neck radiotherapy. The obturator was treated with a hybrid telescopic double crown denture. Reporting a successful prognosis in 18 months of follow-up.

• Journal of the korean academy of Pediatric Dentistry
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• v.35 no.4
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• pp.671-676
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• 2008

AgI/II of Streptococcus mutans(S. mutans) is an important virulence factor that contributes to the pathogenesis of S. mutans-induced dental caries. In oral cavity, salivary IgA antibodies act as safeguards against enormous challenges from oral bacteria. IgA antibodies inhibit adherence of cariogenic microorganisms to hard surfaces. Analysis of salivary IgA against AgI/II can be very useful diagnostic and powerful communication tools to the dental caries The purpose of this study was to investigate correlation between salivary AgI/II specific IgA and incidence of dental caries among children and young adults. Subjects consisted of 28 children and 18 adults. They were assigned to four groups : Group I deft index $\leq$3), Group II(deft index $\geq$4), Group III(DMFT index $\leq$3), Group IV(DMFT index $\geq$4) and they was divided two groups into caries resistant group and caries susceptible group. The study group were examined caries activity and their salivary IgA was evaluated by enzyme-linked immunosorbent assay. The results are as follows : 1. There was a positive correlation between the number of S. mutans and caries activity. 2. The titer of salivary IgA against the AgI/II was significantly higher in caries resistant group than caries susceptible group(p<0.01). 3. The titer of salivary IgA against the AgI/II in Group III was significantly higher than Group II(p<0.05).

• Journal of Oral Medicine and Pain
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• v.38 no.1
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• pp.19-28
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• 2013

With Korea's rapid entry to aged society, elderly population has become a major age group both in the whole society and medical field and its importance will be constantly stressed out. Elderly population is also important in the field of oral medicine which deals with chronic and recurrent diseases in the orofacial region of non-dental origin but there exist few studies indicating epidemiology of elderly patients in this regards. This study aimed to investigate change of age distribution of new patients in a university-based dental hospital and oral medicine clinic for last decade and to investigate clinical epidemiology of elderly patients (${\geq}$ 65 years) of oral medicine clinic. This study was performed retrospectively using medical records of the new patients in Dankook University Dental Hospital in 2001 and 2011. According to the study, percentage of elderly new patients increased in both dental hospital and oral medicine clinic and degree of the increase was greater in oral medicine clinic than in the whole hospital (p=0.000). 13.5% of adult patients ${\geq}$ 18 years of oral medicine clinic were elderly patients ${\geq}$ 65 years. 83% of elderly patients were suffering from one or more systemic diseases. Although TMD was the most common reason for elderly patients who visited oral medicine clinic, oral soft tissue diseases, dry mouth, burning mouth syndrome and oromandibular dystonia was more frequently diagnosed in elderly patients compared to adult patients aged 18 to 64 years. Pain severity and interference of Brief Pain Inventory and depression and anxiety scores of Hospital Anxiety Depression Scales were higher in elderly patients than in the adult patients (p<0.05). Increase of elderly patients with chronic oral diseases and pain needs more attention of dentists and specialists of oral medicine to improvement of assessment and development of tailored management because large portion of the elderly patients have systemic diseases, polypharmacy and impaired communication, possibly restricting treatment options.

• The Journal of Korean Academy of Prosthodontics
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• v.53 no.2
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• pp.144-149
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• 2015

To achieve an esthetic restoration, visualized information considering the facial aspect of patient is required. As for the reasons of esthetic failure, it could be explained by lack of communication and information such as horizontal, vertical and esthetic line. Therefore, it is important to deliver that the visualized information to dental technicians or other dentists for the success of esthetic treatment. This case report presents the process of visualizing esthetic information and designing the restoration using a digital diagnostic tool; Digital Smile Design.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.12 no.1
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• pp.27-30
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• 2016

A salivary stone on mouth floor was removed in a 10-year-old girl with cerebral palsy and epilepsy. If left untreated, sialolithiasis can lead to inflammation of whole salivary gland with severe pain and inflammation that spread to other side of salivary gland causing damaging of teeth, abscess, and nerve disorders. Special needs patients have difficulty to express their pain or discomfort. To overcome communication problem and offer appropriate treatment in proper time, a careful and comprehensive clinical examination including soft tissue and tooth should be prioritized in special needs patients visiting the dental clinic.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.35 no.2
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• pp.100-106
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• 2013

There are many challenges for reconstruction after intraoral tumor resection. Especially, palatomaxillary reconstruction has two primary goals: closure of the oronasal communication and re-creation of proper myomucosal function. Prosthodontic treatment using obturator and several surgical procedures are selected depending on the size and site of the defect, the difficulty of operative procedure, operation time and donor site problem. Above all, it is considered that radial forearm free flap is the first choice for palatal reconstruction. Our department introduces a novel method using tunnelized-facial artery myomucosal island flap for palatomaxillary defect reconstruction, which can successfully reduce donor-site morbidity, and duration of surgery and hospitalization.