• Maxillofacial Plastic and Reconstructive Surgery
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• 제32권1호
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• pp.86-88
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• 2010

Oral metastatic tumors are uncommon and account for about 1% of malignant oral neoplasm. The metastatic lesions are common in breast, lung, kidney and thyroid cancer. About 20% of oral mucosal metastasis is founded before detection of primary lesions. Usually, the metastatic lesions of the oral cavity are involved in the jaw bone, especially mandible more than the oral soft tissues. We report a case diagnosed as the stomach cancer with mandible metastatic lesion looking like TMJ abscess.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제30권5호
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• pp.489-494
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• 2008

A patient complaining of chronic dull pain in the right maxillary area showed slight haziness and small ovoid radiopacity in the right antrum, which was not extended into the choanal area in radiographic views. At operation, lots of mucoid fluid admixed myxoid soft tissues was discharged and the polypoid mucosal tissues were removed. In histological examination, the removed tissues showed a polyp by the overgrowth of dermal connective tissues exhibiting severe myxoid degeneration. Throughout the entire specimen, the inflammatory reaction was diffuse but not so remarkable to produce the mucosal thickening and necrosis. The polypoid tissues were diffusely infiltrated with neutrophiles and plasma cells, but few eosinophils, resulted in the extensive myxoid degeneration together with severe vascular degeneration. Therefore, we suggest that the antral polyp is basically different in its pathogenesis and prognosis from the common maxillary sinusitis of odontogenic origin, thus the antral polyp should be carefully diagnosed when the inflamed antral lesion is recurred and diffusely degenerative with myxoid changes.

• Journal of Oral Medicine and Pain
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• 제36권4호
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• pp.207-213
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• 2011

구강 점막에 발생하는 동통성 궤양은 다양한 질환에 의해 발생할 수 있다. 구강내 병소가 발생한 후 피부병소가 발생하는 질환 또는 구강과 피부 동시에 병소가 발생하는 질환의 경우, 구강내만 국한하여 검사를 시행하고 피부 병소를 간과할 때는 진단이 어려울 수 있다. 본 증례에서는 구강 및 전신에 발생한 통증성, 미란성 병소가 나타나는 다형홍반 및 Stevens-Johnson syndrome(SJS) 환자를 경험하여 이를 보고하고 피부병소가 동반되는 구강점막 질환에 대해 고찰해 보고자 한다.

• Journal of Oral Medicine and Pain
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• 제41권1호
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• pp.16-20
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• 2016

Purpose: Oral lichen planus (OLP) is relatively common mucosal disease in clinical dentistry. OLP is intractable and regarded having malignant potential. Until now, there is some debate on how far OLP can be malignant, and which characteristics can be a risk factor for malignant transformation. Clinician need to know some differences between OLP and lesions similar to OLP to manage properly and suppose prognosis correctly. Therefore, the aim of this study was to divide clinical OLP into two groups and to compare the results of direct immunofluorescence (DIF) between two groups. Methods: This study was conducted on outpatients who visited at the department of Oral Medicine in Chonbuk National University Hospital from January 2007 to November 2015. Patients with DIF result were retrospectively reviewed. The selected patients were classified 'clinical typical of OLP' (CTO) or 'clinical compatible with OLP' (CCW) by modified World Health Organization diagnostic criteria of OLP and oral lichenoid lesion. Results: DIF were classified by deposition intensity or pattern of anti-human antibody and fibrinogen. The classification of fluorescence pattern in each specimen was graded as positive, possibly positive or negative. Conclusions: Both CTO and CCW had positive and possibly positive pattern. Prevalence of positive pattern was 68.8% in CTO and 52.6% in CCW and that of possibly positive pattern was 9.4% in CTO and 5.3% in CCW. Prevalence of negative was 21.8% in CTO and 42.1% in CCW.

• 미생물학회지
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• 제55권2호
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• pp.154-156
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• 2019

Eikenella corrodens는 그람 음성, 통성 혐기성이며 막대 모양의 세균이다. 이 세균 종은 사람의 심내막염, 간농양 및 두개 내 세균감염 등과 같은 전신질환과 연관이 있을 뿐만 아니라 점막의 정상 세균총에 속한다. E. corrodens KCOM 3110 (= JS217) 균주가 사람 치주질환 병소의 치은연하치면세균막에서 분리되었다. 여기에서 E. corrodens KCOM 3110 균주의 유전체 염기서열을 완전 해독하여 보고한다.

• 대한두개안면성형외과학회지
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• 제25권3호
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• pp.150-154
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• 2024

This case report describes a rare occurrence of pyogenic granuloma (PG) in the hard palate deviating from its typical gingival location that led to the formation of an alveolar cleft. The aggressive growth pattern of the lesion, with atypical progression from a pedunculated nodule to an alveolar cleft, raised concern. The diagnosis was based on magnetic resonance imaging and computed tomography findings, which revealed a tadpole-shaped lesion originating from the midline hard palate. The differential diagnosis included a minor salivary gland tumor. Surgical excision was performed under general anesthesia and resulted in a mucosal defect without nasolabial fistula formation or bone exposure. The palatal defect was packed with oxidized regenerated cellulose and closed with Vicryl Rapide sutures, both of which contributed to the patient's successful outcomes. Our comprehensive approach, extending across the stages of surgical planning, execution, and postoperative care, demonstrated the advantages of a multidisciplinary strategy for the accurate diagnosis and effective treatment of palatal PGs. This report makes a meaningful contribution to the existing literature on common oral lesions by emphasizing the importance of a broad differential diagnosis and a systematic approach to oral pathologies. It also raises clinical awareness of PGs with atypical presentations and the diagnostic challenge that they pose.

• 동의생리병리학회지
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• 제23권3호
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• pp.639-644
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• 2009

The aim of this study was carried out to investigate the protective effect of Rhizoma Dioscoreae on the gastric mucosal lesions induced by alcohol in rats. Experimental groups were treated by oral infusion with Rhizoma Dioscoreae extract at the dose of 0.03465 g/ml(OA-RD1 group), 0.0693 g/ml(OA-RD2 group), and 0.1386 g/ml(OA-RD3 group), while D.W group was administrated with the distilled water and control group did not pretreated. Experimental groups pretreated for 14 days, and given orally 1 ml of 75% alcohol two times(30min interval). The animals were killed 1hr 30min after alcohol treatment, and measured rats body weight, absolute stomach weight, relative stomach weight, SOD activity, glutathione peroxidase(GPx) activity, observed gastric mucosal lesions. The body weight was unremarkable changed. In once as dose intake group's absolute stomach weight was increased and In once as dose intake group, twice as dose intake group's relative stomach weight was increased. SOD activity, glutathione peroxidase activity in twice as dose intake group is remarkably increased. Light microscopy Observations of congestion, hemorrhage, and erosion in gastric mucosal lesions were shown severely in control group than OA-RD1, OA-RD2, OA-RD3. These results suggest that the proposed gastroprotective effect may involve activation of antioxidant effect. And Twice as dose is especially effective.

• Imaging Science in Dentistry
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• 제49권2호
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• pp.115-122
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• 2019

Purpose: The aims of this study were first, to compare panoramic radiography with cone-beam computed tomography (CBCT) for evaluating topographic relationships, such as the classification of maxillary posterior teeth and their distance to the maxillary sinus floor; and second, to determine the relationship between maxillary sinus pathology and the presence of apical lesions. Materials and Methods: In total, 285 paired CBCT and panoramic radiography records of patients (570 maxillary sinuses) were retrospectively analyzed. Both imaging modalities were used to determine the topographic relationship of the maxillary posterior teeth to the sinus floor. Mucosal thickening >2 mm was considered a pathological state. Data were analyzed using the chi-square, Wilcoxon, and Mann-Whitney U tests. Odds ratios (ORs) and confidence intervals(CIs) were calculated. Results: The closest vertical distance measurements made between posterior maxillary teeth roots and the maxillary sinus on panoramic radiography and CBCT scans showed statistically significant differences from each other(P<0.05). Compared to panoramic radiography, CBCT showed higher mean values for the distance between the maxillary sinus floor and maxillary posterior teeth roots. The CBCT images showed that at least 1 apical lesion adjacent to the right maxillary sinus increased the risk of maxillary sinus pathology by 2.37 times(OR, 2.37; 95% CI, 1.58-3.55, P<0.05). Conclusion: Panoramic radiography might lead to unreliable diagnoses when evaluating the distance between the sinus floor and posterior roots of the maxillary teeth. Periapical lesions anatomically associated with maxillary sinuses were a risk factor for sinus mucosal thickening.

• Journal of Oral Medicine and Pain
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• 제33권2호
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• pp.133-145
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• 2008

본 연구의 목적은 전기 미각 측정기를 사용하여 구강점막질환(구강편평태선, 재발성 아프타성 궤양)을 지닌 환자의 미각 감수성을 조사하기 위함이다. 173명의 환자가 100명의 대조군과 73명의 실험군으로 구성되었으며 73명의 환자는 부산대학 병원 구강내과에 2005년 4월부터 2007년 1월까지 내원하였다. 대조군은 2006년 2월부터 8월까지 청주 및 인천 소재 치과의원에 내원한 치과환자를 대상으로 하였다. 전기미각측정기(electrogustometer)를 사용하여, 오른쪽 혀끝, 측방 중앙부위, 유곽유두 근처부위, 연구개부위에 미각측정을 시행하였으며 그 결과는 다음과 같다. 1. 실험군에서의 전기 미각 역치는 대조군에서 보다 유의하게 낮은 수치를 나타내었다(p<0.001). 2. 실험군에서 만성도와 병소의 개수에 따른 전기 미각 역치의 주목할 만한 변화는 관찰되지 않았다. 3. Dexan을 단독 사용했을 때와 Dexan과 Prednisolone을 함께 투여한 환자들에서, 전기 미각 역치의 주목할 만한 변화는 관찰되지 않았다. 4. 치료 경과(반응없음 vs 1/2 개선 vs 완전개선)에 따른 전기 미각 역치의 주목할만한 변화는 없었다. 그러나 NAS에 의해 측정된 증상의 개인적 지표는 미반응 군에서는 주목할 정도로 증가하였으며 완전 개선 군에서는 눈에 띄게 감소하였다(p<0.001)

• Toxicological Research
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• 제17권3호
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• pp.167-171
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• 2001

Oral mucous membrane test using Syrian hamsters was performed to evaluate the reliability as a model system for the assessment of the potentially irritating substances intended for the mucous membranes, and to determine the irritating potential of a new emulsion-type formulated toothpaste. After test substances were implanted into the cheek pouches of hamsters with diluents (20 mg/kg) under pento-barbital sodium anesthesia, we made the comparison in irritation between emulsion-type and dispersion-type of triclosan (TCS) formulations in the range of 0.2% to 0.3%. The emulsion-type formulations using non-ionic surfactant showed less mucosal lesion than other commercial toothpastes with 0.3% TCS, or dispersion-type ones. However, no significant difference in irritation was detected between 0.2% and 0.3% TCS. We report that this hamster cheek pouch method could be a reliable approach for the evaluation slight difference in the irritating potentials of cosmetics and hygiene products intended for the lips or other mucous membranes, and this method showed that the new emulsion-type formulation significantly lowered the TCS-induced toxicity, compared with other commercial toothpastes.