UPDATE!
I spoke with another Dentist for a second opinion and not only did they I didn't need to re-do my root canal like Foothills Smiles told me, but they overcharged for the procedure had I done it. Also, the new Dentist said that $700 for the deep cleaning with insurance is outrageous. Be careful with this place!!! All they care about is making money even if it means lying about what the problem is!