The Waterpik Cordless Plus is a robotic flosser that comes with four interchangeable tips, each for a different purpose. The Classic Jet Tip is for healthy gums. The Plaque Seeker Tip works its way around dental work, including implants and crowns. The Orthodontic Tip is for users with braces, and the Tongue Cleaner Tip does exactly what it says. And it does all this using water.
In the sciences, water is what's known as a universal solvent, which means that, given enough time, just about anything can dissolve in it. That includes the dental plaque that forms on your teeth and eventually gives rise to tooth decay. Unfortunately, the solvent capabilities of water do not, on their own, work rapidly enough to keep up with the decay-creating capabilities of plaque, so sometimes water needs a little help in order to carry out its plaque-dissolving duties in a timely manner.
Adding energy to the water helps. Propelling a high-pressure stream of water between your teeth can subject dental plaque to sufficient strain that it will eventually give up its battle to eat through your dental enamel and surrender by letting itself be flushed down the drain of your bathroom sink. This was the method invented by the Waterpik company back in the 1960s. They called it an oral irrigator, and the company still markets a wide variety of them. The WP-450 is just one of many that you can currently buy either new or used. In fact, you're more likely to find this model used than new because Waterpik has already replaced it with a more up-to-date model, the Waterpik Cordless Advanced.
The first six weeks was awesome. It is now three months and I have had to buy a better flosser. This product can not hold a charge.
The pressure has always been very good when it is charged all the way.
It does not hold enough water to even begin to be effective. It is also bulky and loud. It needs refill 2-3 times to be of any use and that is not really easy to do.
This one holds it's charge for one week and when the stream gets low it's time to recharge.
It has really helped with my breath and gums. My dentist has been very pleased. It comes with a lot of spare pik heads.
Not charging anymore even after charging overnight. Expensive as it last only 1-2 years.