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Introduction: Self-medication plays significant role in the development of adverse drug reactions,antibiotic resistance, and masking of underlying diseases. Medical students have some knowledgeabout the use of antibiotics and have a higher chance of irrational and injudicious use. This studyaims to find the prevalence of self-medication practice of antibiotics among medical and dentalundergraduate students. Methods: A descriptive cross-sectional study was done among medical and dental undergraduatestudents from the first year to the fifth year at BP Koirala Institute of Health Sciences from 1st June2018 to 30th August 2018. Ethical approval was obtained from the Institutional Review Committee(IRC/1210/018). Whole sampling was done. Data was collected using a self-responding, semistructured questionnaire and analyzed using Statistical Package for the Social Sciences version 11.5. Results: In total 558 students, the prevalence of self-medication practice of different antibioticswas 285 (51.1%) within the past year. Among self-medicated students, 152 (53.3%) were males. Thecommon drug self-medicated was Azithromycin 80 (28.1%) and the common medical condition touse non-prescription antibiotics was for treatment of sore throat with runny nose 129 (45.3%). Themain source for obtaining non-prescription antibiotics were retail pharmacies 157 (55.1%). Conclusions: Self-medication with antibiotics was at increasing rate with each succeeding yearsof the medical courses. Medical students should be made aware of the rational use of antibioticsby incorporating appropriate courses in their academic curriculum for more refined practice onantibiotics rather than advancement of theoretical knowledge alone.

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First described by Hullihen in 1844, Pyogenic granuloma (PG) is a benign, exophytic vascular tumor. It is not infective, purulent or granulomatous but a reactive inflammatory mass of blood vessels with few fibroblasts within the mucosa or skin. Without any general agreement, there exist a variety of treatment options (complete surgical resection, cryosurgery, curettage, lasers etc). However, recurrence has been frequently reported. Sclerotherapy in PG (a vascular tumor) is not as commonly reported as in cases of hemangioma. Herein, we present a case of twenty-eight years old female with a clinical diagnosis of PG, treated with intralesional sodium tetradecyl sulfate (STS). Intralesional injection of 0.2 ml of undiluted STS was given for three visits between 10th of January and 21st of February 2016. The lesion healed completely at the patient's fourth visit and recurrence was not reported till the patient was followed up for one year, i.e February 2017.

Adenomatoid odontogenic tumor (AOT) is an uncommon, slow-growing, noninvasive odontogenic tumor mostly in the anterior maxilla with three well-recognized clinico-pathological variants: follicular, extra-follicular, and peripheral. Extra-follicular variant presents as a well-defined, unilocular, radiolucency in between, above, or superimposed on the roots of an erupted tooth. A 19 years female reported with the chief complaint of a loose tooth in the right front region of the upper jaw for 6 months, associated with firm swelling without pain or discharge. On orthopantomogram and cone-beam computed tomography, the lesion appeared as a single, localized, well-defined, roughly oval unilocular radiolucency with flecks of radiopacity integrating radicular and cervical third of 13. Complete surgical enucleation followed by histopathological examination revealed the lesion as AOT. The extra-follicular AOT can cause diagnostic dilemmas and is often misdiagnosed as an odontogenic cyst.