I have used the WaterIk for many years after my old one died, maybe five years, I purchased a new one. I have not had a cavity since using it in my daily mouth routine. Cost of the Wayerpik... Peanuts compared to the cost and discomfort of getting a filling. My dentist always says I have young teeth and gums and I know it it partially due to the efficient performance of this great device.
I bought the Waterpik couple of months ago. I regularly floss and was surprised how much food leftovers remain between the teeth that is removed with Waterpik. Great way to extend the life of your teeth.
This is the greatest device I have ever used for cleaning my teeth/mouth. I feel that it gives an on-par if not better cleaning then a professional dental hygienist's cleaning! It was recommended to me by my dental hygienist to ensure my 2 crowns are well cleaned, and I love it!
The waterpik is awesome! What is not awesome is the fact that I just moved to a new apartment that does not have an outlet near the sink. Because the pik is not cordless, I now have to do my teeth at the kitchen sink. So disappointed. However, the job it does cleaning my teeth is amazing! I will simply have to tuck it away when family and friends come to visit.