Discussions taking place within this forum are intended for the purpose of assisting you in discussing options with your vet. Any other use of advice given here is done so at your risk, is solely your responsibility and not that of this forum or its owner. Before posting it is your responsibility you abide by this Statement
All the best! Please make sure that he has got painkillers (ask your vet how soon after the op he can have them) as his mouth is still going to be very sore.
Please keep up the syringe feeding and watering. It takes time for things to normalise, and it may take more rounds of burring until the fragile dental balance is stable again; ideally every 2-3 weeks at first to prevent the teeth from growing back wrongly again until a piggy learns to chew properly again. Tips For Post-operative Care Complete Syringe Feeding Guide