• 대한장애인치과학회지
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• 제13권2호
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• pp.73-79
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• 2017

The purpose of this study was to analyze the dental treatment of patients with disabilities, especially according to the frequency of general anesthesia, and to propose the improvements in oral care. The subjects of the present study were 85 patients including age, sex, medical condition, dental treatment and the number of general anesthesia. The patients were divided into regular and irregular check groups according to their follow-up patterns. These two groups were compared for the frequency of general anesthesia and the type of repeated treatment. The results showed that restorative treatment was superior in numbers under first visit of general anesthesia. And more general anesthesia was performed in the irregular recall check group compared with the regular recall check group. This survey suggest that easy access to a dental clinic and the convenience of treatment is needed. On the other hand, there is a time limit on the dental care for disabilities by the dentist. Therefore oral care training program should be simultaneously provided for parents to improve the efficiency of dental care at home. In conclusion, efforts should be made for more comprehensive and effective dental care including regular recall check and preventive home care for disabilities.

• 대한장애인치과학회지
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• 제9권1호
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• pp.18-24
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• 2013

Objectives: The goal of this study is to establish data baseline to ameliorate oral health policies for patient. The research was conducted in dental clinic at Seoul Metropolitan Children's Hospital - the major municipal hospital for the disabled. The outpatients' visiting patterns to the dental clinic were analyzed, compared to other medical departments. For further research related to TMD, the questionnaires were given to the subjects. Material and methods: Data for visiting patterns/frequencies was collected from patient records of 1419 outpatients who visited the dental clinic at Seoul Municipal Children's Hospital in 2011. Then TMD-related questionnaires were given to 127 outpatients who were over 13 years old. Results: 1. 219 out of 1419 patients (15.4%) who visited the dental clinic at Seoul Municipal Children's Hospital in 2011 were the disabled. 2. Compared to normal patients, disabled patients visited the dental clinic and rehabilitation medicine department more frequently.(p<0.05) However, there was no apparent difference in visiting frequencies between the disabled and the normal patients in the psychiatric department.(p=0.3237) 3. 44% of the TMD-related questionnaire subjects responded that they often consumed relatively hard or tough food, 53% answered they had unilateral chewing habit, 3% had bruxism, and 12% had clenching habit. Conclusion: In the dental clinic at Seoul Municipal Children's Hospital, 19% of outpatients over 13 years old had TMD such as clicking and pain. Also, the disabled patients' visits to the dental clinic were considerably more frequent, compared to the normal patients and to other medical departments. Accordingly, the result may suggest that the proper systematic supports from the government are essential to the dental clinic at municipal hospital for the disabled.

• 치위생과학회지
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• 제21권3호
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• pp.133-139
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• 2021

Background: Smoking in adolescence leads to an intensified addiction to nicotine when physical and mental growth has not yet been completed. With the advent of e-cigarettes, the rate of e-cigarette use among Korean adolescents has been steadily increasing. To date, studies on e-cigarettes and oral health, especially on the relationship between smoking styles and oral health in adolescents, are limited. Therefore, this study aimed to identify the risk factors for oral health problems caused by the repeated use of conventional cigarettes and e-cigarettes. Methods: This explanatory research study compared the adolescents' experiences of periodontal disease symptoms according to smoking type through a secondary analysis of the original data from the 15th Adolescent Health Behavior Survey (2019). Cross-analysis was performed to compare the smoking patterns according to the adolescents' general characteristics. Finally, a binary logistic regression analysis was performed to determine how smoking characteristics affect the adolescents' experience of periodontal disease symptoms. Results: In terms of patients' general characteristics, significant differences were observed in sex, school level, grades, household economic status, type of residence, and father's education level between adolescents who smoked conventional cigarettes alone and those who smoked both conventional cigarettes and e-cigarettes (p<0.05). After checking the factors affecting the smoking pattern and the experience of periodontal disease symptoms in adolescents, it was found that the duplicate smoking group was more likely to experience periodontal disease symptoms (odds ratio, 1.20) than the group that smoked conventional cigarettes alone (p<0.05). Conclusion: Duplicate smokers experienced more symptoms of periodontal disease than those who smoked cigarettes alone. Based on the findings of this study, smoking cessation counseling according to the smoking type and differentiated education for oral health promotion should be provided.

• 치위생과학회지
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• 제13권4호
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• pp.449-460
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• 2013

본 연구는 23명 대학생을 대상으로 1차 강의식 교육과 2차 소그룹별 실습 교육의 구강보건교육을 실시한 후 올바른 칫솔질, 치실질 실천 및 식습관 중 영양성분표 확인 등의 구강건강행동별로 변화단계와 동기요소의 변화 양상을 파악하고, 면접조사를 통해 동기요소에 영향을 미친 요인을 심층적으로 확인하여 구강건강행동의 변화 과정을 분석하여 다음과 같은 결과를 얻었다. 1) 1, 2차 교육 후 1개월 내 행동을 시작하려는 준비단계의 응답비율이 소폭 증가하였다. 구강건강행동별 동기요소는 1차 교육에 비해 2차 교육 후 올바른 칫솔질에 대해 귀찮다고 느끼는 장애 인식에서 '귀찮음'에서 '귀찮지 않음'으로 긍정적으로 변화한 비율이 39.1%로 가장 높았고, 치실질 실천과 영양성분표 확인에서는 자기 효능감 인식에서 '자신 없음'에서 '할 수 있음'으로 긍정적으로 변화한 비율이 각각 50.0%, 30.4%로 높게 나타났다. 2) 올바른 칫솔질 실천에 대한 필요성 또는 유익성을 인식하였을 때 칫솔질 실천에 대해 귀찮아하는 장애 인식이 낮았다. 치실질 실천의 경우, 평소에 치아 사이를 관리하는 것에 대한 필요성을 느꼈거나, 지인으로부터 치실 사용을 권고받은 경험이 있거나 지인의 직접 사용하는 것을 보았을 때 치실질을 할 수 있겠다고 인식하는 자기효능감이 높았고, 식습관 중 영양성분표 확인에 대해 귀찮아하는 장애 인식이 낮고, 필요성과 유익성을 명확히 인식할 때 간식 구매 시 영양성분표를 확인하겠다고 하는 자기효능감 인식이 높았다. 3) 교육 대상자의 구강건강인식 및 행동변화에 영향을 미친 교육의 특성으로는 실험, 실습을 통해 결과를 직접, 바로 확인할 수 있는 참여위주의 교육이었고, 이해하기 쉬운 그림, 사진자료를 활용하였기 때문인 것으로 나타났다. 이에 따라 실습, 참여위주의 교육을 통해 구강건강행동을 실천할 수 있다는 자기효능감은 높이고 행동에 대한 어려움 인식은 낮추며, 자신의 상태를 관찰해 봄으로써 구강질환에 대한 취약성을 인식하고, 그림과 사진 자료를 이용하여 쉽게 이해함에 따라 구강건강행동의 유익성을 명확히 인식함으로써 긍정적인 행동변화를 유도하는 효과적인 교육이 이루어질 수 있겠다. 추후 변화단계별 다양한 동기요소를 이끌어낼 수 있는 구체적인 전략이 개발되어 실제적인 행동변화를 유도할 수 있는 구강보건교육이 이루어져하며, 다양한 건강행동모형에 근거하여 구강건강행동 변화를 유도하는 경로와 관련 요인을 검증하고, 관련 요인에 개입할 수 있는 전략을 개발하는 연구가 이루어져야 할 필요가 있겠다.

• International Journal of Oral Biology
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• 제45권1호
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• pp.25-31
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• 2020

Enamel knot (EK)-a signaling center-refers to a transient morphological structure comprising epithelial tissue. EK is believed to regulate tooth development in early organogenesis without its own cellular alterations, including proliferation and differentiation. EKs show a very simple but conserved structure and share functions with teeth of recently evolved vertebrates, suggesting conserved signaling in certain organs, such as functional teeth, through the course of evolution. In this study, we examined the expression patterns of key EK-specific genes including Dusp26, Fat4, Meis2, Sln, and Zpld1 during mice embryogenesis. Expression patterns of these genes may reveal putative differentiation mechanisms underlying tooth morphogenesis.

• The Journal of Advanced Prosthodontics
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• 제14권1호
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• pp.1-11
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• 2022

PURPOSE. The maximum width between the mesial and distal labial transitional line angles, described as "esthetic width" herein, could significantly influence the visual perception of the teeth and smile. This study aimed to conduct biometric research on esthetic width and to explore whether regular distribution exists in the esthetic width of human teeth. MATERIALS AND METHODS. A total of 4,264 maxillary and mandibular anterior teeth were measured using the Geomagic studio software program. The proportions of maxillary to mandibular homonymous teeth and proportions between the adjacent teeth were calculated. Bilateral symmetry and the correlation between the esthetic and mesiodistal widths were both accounted for during the measurement procedures. RESULTS. The mean esthetic widths were 6.773 ± 0.518 mm and 4.329 ± 0.331 mm for maxillary and mandibular central incisors, respectively, 5.451 ± 0.487 mm and 5.008 ± 0.351 mm for maxillary and mandibular lateral incisors, respectively, and 3.340 ± 0.353 mm and 5.958 ± 0.415 mm for maxillary and mandibular canines, respectively. Except for the mandibular canines, no significant difference in esthetic width was found among homonymous teeth from the same jaw. A high linear correlation was found between the esthetic and mesiodistal widths of the same tooth, except for the maxillary canines. Esthetic width proportions among different tooth categories showed some regular patterns, which were similar to those of the mesiodistal width. CONCLUSION. Esthetic width is regularly distributed among the teeth in the Chinese population. This could provide an important reference for anterior dental restorations and dimension recovery in esthetic reconstruction of anterior teeth.

• Journal of Oral Medicine and Pain
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• 제36권4호
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• pp.225-234
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• 2011

흡연은 전신건강 뿐 아니라 구강건강에도 유해하여 구강암과 치주염의 발생, 창상치유 지연, 치아상실 등과 관련성을 가지는 것으로 알려져 있다. 이미 흡연과 구강건강의 관련성에 대한 연구가 많이 있지만, 구강건강에 대한 인식도나 위생관리 등 흡연 외의 다양한 요소가 구강건강에 영향을 줄 수 있으며 타액 분비나 구취처럼 흡연과의 관련성이 확실히 밝혀지지 않은 부분도 존재한다. 그러므로 구강위생에 대한 인식 수준이 상대적으로 높고 추적조사가 용이한 치과대학생이라는 집단에서 흡연자와 비흡연자의 구강건강을 상태를 장기적, 포괄적으로 비교한다면 흡연이 구강건강에 미치는 영향을 보다 명확하게 확인할 수 있을 것이다. 본 연구는 장기적 연구에 앞서 치과대학생 중 흡연자들의 흡연 특성을 파악하고, 흡연자들과 비흡연자들의 전반적인 구강건강상태를 비교하여 보고하고자 하였다. 2010년 4월 21일부터 2011년 4월 20일까지 단국대학교 치과대학 치의학과에 재학 중인 1학년부터 4학년까지의 남학생 224명 중 지원자 192명(85.7%)을 대상으로 하여 설문지 조사와 임상검사를 시행하였다. 설문지조사에는 흡연 양태, 음주, 니코틴의존도, 구강위생관리, 간이심리검사가 포함되었고 임상검사에는 치아 및 치주 상태, 니코틴 착색, 타액분비량, 전기 미각역치, 구취에 대한 평가가 시행되었다. 본 연구에서, 흡연자군은 금연자군, 비흡연자군에 비해 연령이 약간 높고, 음주를 하는 경우가 많았으며 알코올섭취량도 많았다(p<0.05). 세 군은 타액분비율, 구취, 전기미각역치 등의 임상조사에서는 유의한 차이를 보이지 않았으나, 양치질 횟수나 치과방문 횟수에 차이가 없음에도 불구하고 우식경험영구치율(DMFT rate), 치주가료필요 정도 및 니코틴 착색 정도에 있어서 흡연자군과 비흡연자군 사이에는 차이가 관찰되었다(p<0.05). 본 연구의 피검자들이 평균 25세로서 흡연자군이라 해도 흡연기간이 길지 않고 흡연량이나 니코틴의존도가 낮은 수준임에도 불구하고 치주조직에는 이미 유해한 효과를 주고 있다고 판단된다. 기초 자료 분석이지만 흡연은 치주조직에 신속히 영향을 미치므로 금연 치료를 조기에 시행할 필요가 있다.

• 대한장애인치과학회지
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• 제11권1호
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• pp.17-20
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• 2015

Autism is a life-long neurodevelopmental disorder characterized by qualitative abnormalities in reciprocal social interactions and patterns of communication. Patients with autism are difficult to manage during dental treatment. Thus they need special consideration like physical restraint, conscious sedation or general anesthesia. A 5-year-old male dental patient with autism was reffered to dental treatment under conscious sedation using intramuscular midazolam that creats anterograde amnesia. Dental procedure using midazolm which cause anterograde amnesia can be effective treatment strategy in autism patient.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권1호
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• pp.71-76
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• 2009

Benign myoepithelioma (BME) and malignant myoepithelioma (MME) of the salivary gland are very rare and its biologic behavior has not been clarified fully. Although, cases reports for BME and MME were increased in recent, their diagnostic criteria were not completely established. We describe herein a case of BME of the parotid gland and a case of MME of the palatal minor gland, respectively. Histologically, multinodular growth pattern, infiltration to adjacent tissues, and hyalinized and myxoid matrix were observed in MME, that were different histologic features compared with BME. Strong immunoreactivities for the S-100 protein and vimentin were detected in the tumor cells of BME and MME. In specimen of MME, moderately expressed p53 and strongly expressed p63 were detected. However, in specimen of BME, p53 was negatively and p63 was weakly expressed, respectively. In conclusion, the expression patterns of p53 and p63 as well as histologic aggressiveness might be used to diagnose the MME.

• 치위생과학회지
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• 제17권5호
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• pp.454-461
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• 2017

The purpose of this study was to confirm the relevance of dental health capacity and pulmonary function status. The subjects of this study were adults aged 40 years and older, who participated in pulmonary function and oral examinations. The data used for this study were raw data from the sixth Korea National Health and Nutrition Examination Survey (2013~2015). Statistical analysis was performed by analysis of complex sample survey data. The results were as follows: First, restrictive and obstructive patterns were more prevalent among males than females. They were even worse in older subjects. Approximately 67% of smokers had obstructive pattern. Second, there was a relevance between dental health capacity and pulmonary function status. The functioning teeth index, number of present teeth, and number of sound teeth (ST), which are indicators of dental health, declined with decreased pulmonary function. The number of missing teeth (MT) increased as the pulmonary function deteriorated (p<0.05). Third, the relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience was statistically significant in the tissue health (T-health) index and ST among non-smokers. The relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience was statistically significant (p<0.05) for the T-health index, ST, and MT among smokers. However, there was no relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience and adjusting confounding variables. In conclusion, there was a relevance between dental health capacity and pulmonary function status after confounding variables were adjusted. However, there was no relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience and adjusting confounding variables.