Dentigerous cysts are one of the common cysts of the jaws. Bilateral dentigerous cysts generally occur in association with a developmental syndrome or systemic diseases. Bilateral dentigerous cyst in absence of a syndrome is rare and to date only 18 cases have been reported. After reviewing the literature, no case reports of dentigerous cysts involving all the quadrants of the jaws were reported. As far as our knowledge, this is the first case to be reported.
A series of furan-EDOT copolymer films, namely, P(Fu-EDOT), P(Fu-EDOT-Fu) and P(EDOT-Fu-EDOT), were electrochemically synthesized from their corresponding monomers and evaluated as active electrode materials for supercapacitor applications by galvanostatic charge-discharge method. The specific capacitance of these copolymers was calculated to be 65, 46 and 75 F g -1 at a current density of 1 A g -1 , respectively. Besides, their energy density were also investigated. Among them, P(EDOT-Fu-EDOT) exhibited higher specific capacitance and energy density (15 Wh kg −1 at a power density of 0.6 KW kg −1 ) than P(EDOT-Fu) and P(Fu-EDOT-Fu), and also showed a large power range while maintaining a relatively high energy density. These favorable performances make P(EDOT-Fu-EDOT) a promising candidate as electrode material for supercapacitors compared with P(Fu-EDOT-Fu) and P(EDOT-Fu).
Myiasis, a term first introduced by Hope (1840), refers to the invasion of tissues and organs of animals and human wounds and certain body cavities by the dipteran larvae which manifests as subcutaneous furunculoid or boillike lesions. Oral myiasis is a rare pathology and a risk to the patient's life. Higher incidence is seen in rural areas affecting the tropical and sub-tropical zones of Africa and America. Myiasis affecting the oro-dental complex is rare. Here is a case report of oral myiasis in an 18-year-old male patient who is mentally challenged with anterior open bite, incompetent lips, and periodontal disease. The lesion was treated with turpentine oil, which forced larvae out and irrigated with normal saline solution. Follow-up examination revealed complete remission and healing of the lesion.
Oral malignant melanoma is a rare aggressive neoplasm of melanocytic origin, usually found on the hard palate and gingiva, and representing 0.2-8% of all melanomas. Unfortunately, oral mucosal melanomas have by far the worst prognosis, and therefore early detection is indispensable for improving their prognosis. Histopathological examination of any pigmented lesion is essential to rule out this lethal entity. Computed tomography is of help for assessing both the extent of the lesion and the presence of regional metastasis to the lymph nodes. Malignant melanoma cells stain positively with antibodies against HMB-45, S-100 protein and vimentin, and so immuno-histochemistry can play a crucial role in evaluating the depth of invasion and location of metastasis. The presence of satellite/in transit lesions is an important factor affecting prognosis. Here we report a 30-year-old female patient with malignant melanoma of the gingiva and hard palate with a satellite lesion, highlighting the role of various diagnostic tools in its detection, and the prognosis associated with satellitism.
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