I just go by the results I see with my own eyes. I see food particles that come out of my mouth after using a waterpik (even after string flossing and brushing

I just go by the results I see with my own eyes. I see food particles that come out of my mouth after using a waterpik (even after string flossing and brushing). Normally I waterpik first but during the testing phase I did it last because I was skeptical on what it would actually do for me. None of the staff at the place I goto say they learned it in dental school or hinted at doing it for the sake of doing it. They've been in practice for 20+ years and have seen a lot of patients. I'm guessing they have a large enough sample size to come up with something. In my opinion experience is often a good deciding factor when you have nothing else to work with.