hi doctor, when i was a child i had very bad teeth, i lost both my upper molars when i was 12, so i went to a dentist and he gave ceramic bridges on both the sides, i think due to a bad dental job i used to bite the side of my tongue during chewing food, by the time i realised its due to my teeth it was too late, and those repeated bites left a 1.5cm long and 0.5cm wide black marks on the sides of my tongue, now i am 22 and these marks are causing me a problem i couldn't laugh or open my mouth completely in public. please help me.