Ah teeth and dentistries . . . I know them well.
Get a CBC pro done for bloodwork. Unless you have other worries no sense in getting a T4 or anything else added onto it.
I would get the x-rays. Only x-rays can show horizonal boneloss, thus sparing you from possibly having to get another dental too soon, or her developing some sort of infection under the gumline which can ultimately lead to heart disease.
I know it's not as common in pit bulls, but with Greys it's an extremely important thing to keep an eye on.
"All changes, even the most longed for, have their melancholy; for what we leave behind us is a part of ourselves; we must die to one life before we can enter another." -Anatole France