It depends on the type of stones, you may want to consider consulting with a specialist for follow up care. There are prescription meds for stubborn cases, talk to your vet.
Below copied from a previous post:
More Nonsense from Holistic Vets about Commercial Therapeutic Diets
Also, if the dog is overweight, get the extra weight off, increase walks/exercise/activity.
“Dogs that get urinary tract infections and bladder stones tend to have a genetic predisposition, combine that with not enough water intake, not enough opportunities to urinate and you have a problem”.
“Whatever you decide to feed, add water to the kibble or canned food, even presoak and add water. Take out to urinate at least every 4 hours (every 2 hours is ideal) stagnant conditions in the bladder are conducive to bladder stone formation”.
“Always have fresh water available for the dog 24/7”.
“Regarding supplements, I would check with your vet first. He may recommend something specific for your dog”. Otherwise, I would be careful, not all supplements are benign.
Good luck
