Okay i accidentally used the toothbrush of someone who has gingivitis.will i get something from using it ?

Everyday during gym we run for 10 minutes without stopping,I have bad stamina,I was wondering if anyone had tips on like breathing if it helps or is important while running. Or the proper way to run/catch breath

Circumvallate papillae? when they are enlarged do you get bad breath? Since they've been this way I always feel like I have bad breath.

someome told me they would be gone in a few days, But its been a week and they're still there, what should I do?

I need braces and my insurance doesn't cover very much.

seriously. my husband said that if a child lsses an adult tooth the dentist can plant a seed and a new tooth grows. is this true- i can not find an answer on the internet anywhere when a child losses an adult tooth- he was told- the dentist has a seed' that he puts in the gum line that grows into a tooth.