Hi.. Thanks for the query... It looks like the dimple is not yet back due to edema still present on that side due to multiple injections for anaesthesia.. Do not worry as the numbness and swelling is already reduced so there is no complication that can be thought off.. You should simply do cool compresses on the side of cheek and along with it take anti inflammatory painkillers like Ibuprofen to get relief.. If the cheek on the inside is sore you can apply Lidocaine gel over it.. Hope this helps.. Regards..