This is such a nice post. There are several mouth infections and diseases when we don't properly take care of our tooths and mouth in general.
Tooth cavities as you mentioned is indeed a very severe infection we must take swriously. It can cause a lot of pain to the affected victim.
Also we could have bad breath when we don't take adequate care of our teeth. A poor dental hygiene can also affect the whole body health. Well done dear!