Deductions & credits

I understand these expenses are generally deductible.  My question/concern really has more to do with the fact that she continued to use these providers after we left Missouri and moved to Arizona.  We would claim mileage from a different location in Missouri (where our kids live and where we stay when we visit them).  Round trip mileage is around 280 miles.  I just wondered if claiming it would raise some sort of red flag.  It would be unusual for someone to claim that many miles for a standard dental visit.  If the provider was a specialist living some distance from us that would be expected.  But that is not the case here.  She just chose to continue to go to this dentist until we found a new one in Arizona.