Dear Lybrate user,
you have ulcers due to bad oral hygiene or sharp edges of teeth which regularly irritate your tongue & chick also, which cause ulcer
. Maintain oral oral hygiene, brush your teeth twice (morning & night) daily. Clean your tongue properly with tongue cleaner. You need scaling your teeth if they are dirty due to deposition of stain & calculous. You should consult to dentist
for scaling your teeth, round off sharp edge of teeth.