• Journal of Oral Medicine and Pain
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• 제25권4호
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• pp.355-364
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• 2000

This study was to find dental materials causing hypersensitivity reactions by carrying out patch tests in the patients with oral mucosal lesions to investigate the possibility of hypersensitivity reactions in etiology of oral mucosal lesions. 31 patients (female 26, male 5, age range 24-72 years) with oral mucosal lesions were classified as patient group, and 41 volunteers (female 24, male 17, age range 23-40 years) without oral mucosal lesion, systemic disease and history of allergy as control group. The obtained results were as follows: 1. There were various dental restorations in most of patient group and control group, 29(94%) in 31 patient group, 35(85%) in 41 control group. 2. Among sites of oral mucosal lesions, buccal mucosa was the most common site with 60%, followed by gingiva with 24%, tongue with 16%. Lesions in contact with restorations were highly 90% in tongue and 89% in buccal mucosa, but comparatively lower 53% in gingiva. 3. The ratio of positive reactions to the patch test in patient group was significantly higher than the control group (p<0.05). 4. Dental materials causing positive reactions to the patch test were mainly mercury(19%), potassium dichromate(16%), cobalt chloride(16%) in patient group, cobalt chloride(17%) in control group. 5. In 20 patients with lichen planus, 8 patients(40%) showed positive reactions to the patch test.

• 대한치과교정학회지
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• 제50권2호
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• pp.86-97
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• 2020

Objective: To propose a three-dimensional (3D) method for evaluating temporomandibular joint (TMJ) changes during Twin-block treatment. Methods: Seventeen patients with Class II division 1 malocclusion treated using Twin-block and nine untreated patients with a similar malocclusion were included in this research. We collected their cone beam computed tomography (CBCT) data from before and 8 months after treatment. Segmentations were constructed using ITK-SNAP. Condylar volume and superficial area were measured using 3D Slicer. The 3D landmarks were identified on CBCT images by using Dolphin software to assess the condylar positional relationship. 3D models of the mandible and glenoid fossa of the patients were constructed and registered via voxel-based superimposition using 3D Slicer. Thereafter, skeletal changes could be visualized using 3DMeshMetric in any direction of the superimposition on a color-coded map. All the superimpositions were measured using the same scale on the distance color-coded map, in which red color represents overgrowth and blue color represents resorption. Results: Significant differences were observed in condylar volume, superficial area, and condylar position in both groups after 8 months. Compared with the control group (CG), the Twin-block group exhibited more obvious condyle-fossa modifications and joint positional changes. Moreover, on the color-coded map, more obvious condyle-fossa modifications could be observed in the posterior and superior directions in the Twin-block group than in the CG. Conclusions: We successfully established a 3D method for measuring and evaluating TMJ changes caused by Twin-block treatment. The treatment produced a larger condylar size and caused condylar positional changes.

• Asian Pacific Journal of Cancer Prevention
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• 제17권sup3호
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• pp.77-80
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• 2016

Oral squamous cell carcinoma (OSCC) is one of the ten most common causes of cancer death worldwide. Assessment of molecular changes can help detect and control lesions. The aim of this study was evaluation of salivary levels of ErbB2 and CEA in OSCC patients. In this case-control study, 27 OSCC patients and 26 healthy controls participated. After obtaining consent and filling out a questionnaire, unstimulated saliva samples were collected from people in the morning for measurement of the two markers using ELISA. Data were analyzed using Mann Whitney U test in SPSS 19 software with P<0.05 considered significant. Subjects were in the age range of 40 to 65 years. \Salivary level CEA was elevated in OSCC samples ($42.6{\pm}21.1ng/ml$) as compared to those of controls ($22.6{\pm}22.1ng/ml$) (p< 0.01), but no significant variation was noted for ErbB2 ($5.2{\pm}1.8ng/ml$ and $4.93{\pm}2.14ng/ml$, p=0.28). The role of ErbB2 as a tumor marker in patients with OSCC must still be regarded as controversial and needs further studies to clarify any significance for early detection or screening. In contrast the salivary level of CEA may find application for early detection of patients.

• Journal of Oral Medicine and Pain
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• 제36권2호
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• pp.91-97
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• 2011

H. pylori는 위 뿐만 아니라 구강의 치태, 타액 등에 존재하여 구강편평태선, 재발성 아프타성 구내염, 치주질환 그리고 구취와 같은 많은 구강질환과 관련되여 있다. 구강작열감증후군은 어떠한 임상적 징후를 나타내지 않는 구강 내 통증장애로 주로 혀나 구강점막에 타는 듯 한 통증을 특징적으로 나타낸다. 구강작열감증후군의 원인으로는 국소적, 전신적 및 정신적 요인 등이 제시되고 있으나, H. pylori 균의 감염과 관련된 연구는 매우 부족하다. 이에 본 연구에서는 구강 내 H. pylori 발현 상태가 구강작열감증후군과 관련성이 있는지를 알아보고자 21명의 구강작열감증후군 환자와 21명의 대조군의 협점막, 혀의 배면 그리고 타액에서 표본을 채취한 후 nested PCR을 시행 하여 다음과 같은 결과를 얻었다. 1. Nested PCR 분석을 시행한 후 표본채취 부위 중 한 개 이상에서 양성으로 나타난 경우가 구강작열감증후군환자에서 6명(29%), 대조군에서 3명(14%)이었다 (p>0.05). 2. 구강작열감증후군 환자의 협점막, 혀의 배면 그리고 타액에서 3명(14%), 2명(10%), 4명(19%)이 양성을 나타내었으며, 대 조군에서는 혀의 배면과 타액에서만 2명(10%) 과 1명(5%)이 양성을 나타내었다(P>0.05). 이상의 결과로 구강 내 H. pylori와 구강작열감증후군과는 관련성이 없음을 추론할 수 있었다.

• 대한치과의사협회지
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• 제56권8호
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• pp.432-436
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• 2018

Dental caries and periodontitis are the major concerns of oral disease to human, and its etiologic factor is dental biofilm. The aim of this study is to discuss the clinical application method and the meaning of dental biofilm control in the disabled patients. Generally, ultrasonic scaler are likely to generate excessive stimulus to the disabled patients. Rubber cup application using Ni-Ti engine could remove dental biofilm more comfortably to the disabled patients.

• Journal of Oral Medicine and Pain
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• 제40권4호
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• pp.135-139
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• 2015

Desquamative gingivitis (DG) is a gingival manifestation of systemic mucocutaneous disorders such as mucous membrane pemphigoid, oral lichen planus, and pemphigus vulgaris. The lesion is very painful, so affects the patient's ability to do proper oral hygiene practices. This may be a potential risk factor for long-term periodontal health. However, there is some controversy about the relationship between the existence of DG and periodontal status. Although the correlation between DG-associated diseases and periodontal status is not to be certain, early diagnosis and appropriate treatment including adequate plaque control and removal of local factors is very important for preventing the progression of diseases and destruction of periodontal tissues.

• Journal of Periodontal and Implant Science
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• 제53권4호
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• pp.248-258
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• 2023

Purpose: This study aimed to characterize the early stages of periodontal disease and determine the optimal period for its evaluation in a mouse model. The association between the duration of ligation and its effect on the dentogingival area in mice was evaluated using micro-computed tomography (CT) and histological analysis. Methods: Ninety mice were allocated to an untreated control group or a ligation group in which periodontitis was induced by a 6-0 silk ligation around the left second maxillary molar. Mice were sacrificed at 1, 2, 3, 4, 5, 8, 11, and 14 days after ligature placement. Alveolar bone destruction was evaluated using micro-CT. Histological analysis was performed to assess the immune-inflammatory processes in the periodontal tissue. Results: No significant difference in alveolar bone loss was found compared to the control group until day 3 after ligature placement, and a gradual increase in alveolar bone loss was observed from 4 to 8 days following ligature placement. No significant between-group differences were observed after 8 days. The histological analysis demonstrated that the inflammatory response was evident from day 4. Conclusions: Our findings in a mouse model provide experimental evidence that ligature-induced periodontitis models offer a consistent progression of disease with marginal attachment down-growth, inflammatory infiltration, and alveolar bone loss.

• 한국치위생학회지
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• 제16권6호
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• pp.893-907
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• 2016

Objectives: The purpose of this study was to identify the related factors of dental caries and periodontal disease in adolescents from Korean multicultural families, thereby helping to reduce the prevalence rate of oral disease. Methods: The subjects were 710 multicultural adolescents recruited using a web-based survey, National 2015 Korean Youth Risk Behavior, from the Korean Center for Disease Control. A multicultural family was defined in this study as one having an immigrant mother or father. Oral symptoms included dental caries and periodontal disease. Toothache was defined as a symptom of dental caries. Tender or bleeding gums were defined as symptom of periodontal disease. For statistical analysis, Statistical Package for Social Sciences (SPSS) Version 21.0 for Windows was used. Descriptive analysis and a Chi-square test were conducted to determine the factors associated with general characteristics, health behavior, and oral health behavior. Finally, to investigate the associations among oral disease symptoms, logistic regression analysis was performed. Results: Toothache was significantly higher in female 1.52 (95% CI; 1.45-1.60), high school 1.23 (95% CI; 1.18-1.28), women school 1.10 (95% CI; 1.05-1.16), individuals with poor economic status 1.45 (95% CI; 1.30-1.52), and participants who consumed alcohol 1.32 (95% CI; 1.27-1.37). Toothache related to perceived health status was significantly lower in the healthy group 0.69 (95% CI; 0.64-0.75), and was higher in usual stress group 1.65 (95% CI; 1.57-1.74). Gum bleeding was significantly higher in female 1.32 (95% CI; 1.27-1.37), high school 1.15 (95% CI; 1.10-1.19), and individuals with poor economic status 1.38 (95% CI; 1.27-1.50). Gum bleeding related to perceived health status was significantly lower in the healthy group 0.68 (95% CI; 0.63-0.74), and was higher in usual stress group 1.54 (95% CI; 1.46-1.62). Conclusions: Taking into account of social and economic levels, and dietary habits in the multicultural families adolescents, further education and support will be needed for oral disease prevention and early treatment.

• Journal of Oral Medicine and Pain
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• 제46권2호
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• pp.63-68
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• 2021

Mucous membrane pemphigoid (MMP) is a heterogeneous group of chronic, autoimmune subepithelial blistering diseases, predominantly involving oral mucosal membrane. Because of its pathophysiology of autoimmune reaction, MMP-related gingivitis would not respond to conventional periodontal treatments. We present a case of a 65-year-old female with a chief complaint of chronic generalized buccal gingivitis, unimproved after periodontal treatment for four months. Based on the clinical findings, histological examination, and direct immunofluorescence microscopy, it was diagnosed as MMP. The symptoms were relieved with immunomodulatory therapy using corticosteroids and the supportive management of professional plaque control. MMP can cause pathological involvement throughout the oral and other mucosae of the body, thus leading to functional impairment through repeated inflammatory cascades. Therefore, accurate diagnosis is essential to properly manage local and possible systemic complications of MMP.

• 구강회복응용과학지
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• 제31권2호
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• pp.134-142
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• 2015

편평태선은 면역 매개 점막피부 질환으로 병인은 여전히 알려져 있지 않고, 중년의 백인 여성에서 흔히 발생하고 구강점막에서 증상이나 징후가 생기기도 한다. 편평태선의 피부 병소는 가려움을 유발하나 자기 제한적이고, 구강편평태선의 구강 병소는 만성적이고 좀처럼 스스로 치유되지 못하고, 드물긴 하나 잠재적으로 전암 병소로 발전할 수 있다. 구강편평태선은 비록 비치태 연관 질환이나 통증, 출혈로 인해 적절한 치태 조절이 어렵게 되어 치태 연관 질환을 야기할 수 있고, 작열감, 자발적인 출혈 등 구강편평태선과 관련된 점막 증상이 축적된 치태에 의해 더욱 악화될 수 있다. 따라서 구강편평태선 환자에서 구강편평태선 자체의 약물적 치료뿐만 아니라 적절한 구강 위생 관리, 치석 제거 등의 치주 치료가 동반되어야 한다. 본 증례에서는 구강편평태선 환자에서 국소적인 코르티코스테로이드 치료뿐만 아니라 구강 위생 교육을 포함한 치주 치료를 통해 증상 및 징후를 개선시키고 재발 방지를 도울 수 있었다.