Brushing alone will never be able to totally clean your teeth. That’s a logical statement if not a fact. The reason being that the mouth was “designed” to battle bacteria and other natural organisms from entering the body. And the way this works is through “good” bacteria which lives in the mouth.
But even with all the bacteria wars going, there is still the problem with the food materials which remain in the oral cavity. Food gets eaten, and not all of it gets digested. Some remain in the mouth. Little bits here, little bits there. Brushing the teeth keeps it clean, but there are always some little tiny flecks of food still stuck between the teeth. Dental floss works, but for even cleaner teeth, dental water piks do the job twice as best.
Dental water piks have been around for almost fifty years. These are safe, inexpensive and easy to use. For some, these are even fun to use. Almost like having a dentist clean your mouth every day. It’s just water, really.