Primary herpetic gingivostomatitis(PHGS)is a manifestation of primary herpes infection with the simplex virus .It may be preceded by some prodromal symptoms.After the resolution of the primary infection, the virus remains latent in a nervous ganglion. The aim of this paper was to report a case of PHGS in a child

Epidermoid, dermoid and teratoid cysts are nonodontogenic benign lesions derived from the germinative epithelium, appearing any where of the body. In the oral cavity, these are uncommon and account for less than 0.01% of all the oral cysts. These cysts often remain asymptomatic for years however can become acutely symptomatic.