I have been using a Waterpik machine for the last 25 years to clean out stuck food between my teeth. The present model shown here is outstanding for the purpose I bought it & would highly recommend it to all future buyers.
Have a filling and a bit of a pocket, that tends to collect bits of food. Toothpicks and flossing sometimes jam the debris further in. Fill up the Waterpik with warm water and a shot of mouthwash and in no time teeth are CLEAN.