After a dental cleaning, it is generally recommended to wait at least 30 minutes before eating or drinking anything. This allows the fluoride from the toothpaste and the anesthetic from the numbing agent to wear off completely. Eating or drinking too soon after a cleaning can interfere with the effectiveness of these treatments and can cause discomfort.
There are a few exceptions to this rule. If you have had a deep cleaning or other more extensive procedure, your dentist may recommend waiting longer before eating. They will give you specific instructions on when it is safe to eat and drink.