I would love to help answer, but i think i need a little more context here.
Answer: It’s could cause things worse than cavities such as gum disease, and route canals
Explanation: hope this helps :)
The circulatory system is also known as the cardiovascular system. They both allow blood to circulate throughout the body, transporting nutrients, oxygen, and carbon dioxide.
I hope this helps! :)
TRUE!
Your sentence itself explains it, so there is no need to further description.
Hope this helps!