I think it would be a good idea to have your dentist check the tooth. It may have an infection that had nothing to do with the RS&P. If everything looks OK, try using toothpaste for sensitive teeth. Many times a deep cleaning like you get with and RS&P will expose some of the dentin. There are tiny tubules in the dentin that lead to the nerve. The toothpaste will help fill in the tubules and stop the pain sensation from reaching the nerve.
It's always best to have it checked though. You don't want an infection in your front tooth. Been there,...did that, and lost my four front teeth to bone loss from an infection I didn't even know I had.
Do have it checked out and get some of the toothpaste. It takes a couple of weeks, but it can do wonders.
GOOD LUCK and let us know how you do.
My very best to you,
Gellia