A well done filling and crown can withstand forces to some extent, hence there are no serious restrictions to avoid nuts like badham, pistachio. However, you are requested to be conscious on the force you apply to chew these nuts, a sudden heavy force can cause a fracture to the restoration and tooth under the crown but a slow paced soft force can withstand the fracture.
Next Steps
If you are very particular on consuming nuts, we advise you to place the nuts in water for a while and then chew, the water helps to soften the nuts.
Health Tips
kindly do avoid candies and chocolates that are cold and rock hard to chew, wait for them to soften, then enjoy them well with your new crowns. Best to avoid anything that you cannot chew with that slow paced soft force