After the implants have fully healed and your crowns are in place, you are advised to avoid ice, granola, foods that are so hard other people can hear you chewing. In the days immediately after surgery and while wearing temporary crowns or dentures, avoid sticky, crunchy, or hard foods. After surgery, Dr. Stamboulieh advises a soft diet and avoids drinking through a straw for the first few days after surgery. You should also avoid smoking, vaping, and marijuana products as long as possible after surgery, as these can slow the healing process.