A dentist investigating a schoolgirl with swollen gums was horrified to discover more than a dozen maggots living inside her mouth . Ana Cardoso , 10 , had been taken to the clinic in Brazil after complaining of a tingling sensation in her gums and things 'moving around ' . Her stunned mother Adriana , 35 , said : 'She had been saying for a few days that she felt something moving around in her mouth and at first I thought she was joking . ' I could n't see anything and she did n't seem to be in pain . Ana Cardoso , 10 , had been taken to the clinic in Brazil after complaining of a tingling sensation in her gums and things 'moving around ' 'But then it started getting worse and no matter how much we brushed her teeth she said she still felt something . ' I know my daughter and she is not one to make up stories or lie , so eventually I took her to see a dentist . ' There , Ana , from the Brazilian capital , Brasilia , was diagnosed with a rare form of oral myiasis . This is a fly lava maggot infection that grows in humans and animals . ' I could n't believe it when they said she had a disease and then started pulling the maggots out , ' said Ms Cardoso . ' I thought I was going to be sick . ' A spokesman for the dental surgery said : 'There were 15 maggots in her mouth so we videoed the removal for our records as it is a rare occurrence . 'We also wanted to show the girl 's family what had happened and warn others . ' The video shows Ana 's reaction as a surgeon in white gloves takes out one maggot at a time with a pair of tweezers . Ms Cardoso said : 'She was actually very calm throughout the whole process but I suspect that was more out of helplessness . ' I mean , what else could she do ? ' Myiasis comes from the Latin word 'myia ' meaning fly and 'iasis ' means disease . The flies ' larvae can feed on the host 's living or dead tissue , liquid body substance , or ingested food . When the tissues in the oral cavity are invaded by parasites , this is known as oral myiasis . Those at risk of the rare condition include those from poorer social backgrounds and people who have suffered wounds or other injury to the face . It is also more common in regions with a warmer climate . Infestations of the nose and ears are dangerous because of the possibility of penetration into the brain , the fatality rate is 8 per cent in such cases .
Ana Cardoso , 10 , had been taken to the clinic in Brasilia 's capital , Brazil . Had complained of tingling sensation in gums and things 'moving around ' Dentist was shocked to discover fly lava maggot infection inside her gums . Called oral myiasis , it had caused 15 maggots to form in her mouth .