If you have food in the holes where your wisdom teeth were will it work its way out eventually?

Some dentists don't put stitches in after removing teeth, but my dentist does and I'm glad he does because it keeps food out. Use warm salted water 3 - 4 times a day and swish around the holes and spit out but DON'T RINSE! Peroxide from your druggist is another good thing (don't need a prescription for this.) It will fizz and help bring up the food from the holes. The best would be to either rinse with water and salt, or to buy a plastic syringe from a pharmacy that you can fill with water and aim it towards the extraction holes and rinse them directly.