I am 27 year old women I feel some times my back both teeth having some of smelling partical when I touch my toungh on both of the back teeth I feel some smell of them even in after brushing in morning smell are there I not gone I don't know what to do next
Is there any serious or not ?

Go and get checked at the dentist.

I have braces and sometimes the gums get infected back there and when they pop they stink really bad. I didn't know I had an infection till last week when I went to the dentist. He told me to wash my hand and press on the back of the gums to squeez that nasty smelling juice out but spit it out don t swallow it! Brush your teeth after and gargle with salt water!