Typically, you can return to your normal eating habits within 24-48 hours after getting a tooth filling. However, it's recommended to avoid very hard foods during this period, as they could put pressure on your new filling. In addition, a general rule of thumb is to avoid any foods or beverages with extreme temperatures immediately after your procedure, as they can aggravate your teeth and gums. If you have any concerns or experience prolonged sensitivity or discomfort, don't hesitate to contact your dentist.