Myiasis commonly refers to invasion of live human or animal tissue by fly larvae of the Diptera order where they complete their cycle totally or in part, feeding on living or dead tissue, as well as on body fluids. Infestation of tissues of vertebrate species is pandemic but more frequently found in tropical and subtropical countries where poor hygiene, poor housing infrastructure, warm humid climate, and proximity with domestic animals prevail. Its diagnosis is made basically by the presence of larvae. The present paper reports a case of gingival myiasis involving 14-16 larvae in a 12-year-old boy.