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Waterpik Ultra Water Flosser WP-100

Est. $60
February 2014
by ConsumerSearch
Waterpik Ultra Water Flosser WP-100

Best electric flosser

  • More effective than string floss
  • Promotes healthier gums
  • Customizable settings for comfort
  • Messy
  • Cheap parts that break
  • Low water pressure
Where to Buy

Bottom line

The Waterpik Ultra Water Flosser WP-100 allows users to get a better clean between teeth than with string floss, and is even more effective at cleaning around braces. With 10 pressure settings, the Ultra Water Flosser can be customized for the most sensitive of gums. While it can be messy and there are some complaints about parts breaking easily, owners say it's a must-have for removing stains and getting in tough-to-reach spots.


Cleans the hard to reach spots. The Waterpik Ultra Water Flosser WP-100 can clean hard-to-reach spots at the back of the mouth, around braces or just in between teeth, and cleans more effectively than standard string floss. Reviewers at say that the Waterpik is even able to get in between teeth to help with smoke stains and release food caught after wisdom teeth removal. Some users complain that despite 10 pressure settings there isn't as much water pressure as in previous models.

Ease of use

Takes time to customize. The Ultra Water Flosser is simple to plug in, fill up and go, but with 10 different pressure settings it can be tough to master if you haven't used an electric flosser before. Some users recommend starting on pressure setting one or two until you're used to the machine, otherwise it will feel like needles on sensitive gums. For the inexperienced, the Waterpik can get messy. If you leave your mouth open while using it, water will shoot everywhere.


Multiple settings and large tank. The most notable feature is that it has 10 different speeds for users to choose from, depending on gum sensitivity or how much stuck food is in between teeth. The tank on the back can hold either water or mouthwash, and it holds enough liquid for over 90 seconds of use.

Cost of ownership

Reasonable start-up costs, tips can get pricey. The Ultra Water Flosser comes with six tips, including two classic tips and four special-featured tips, each of which lasts around six months. It costs about $9 for a set of two at most dental product retailers. However, it's not the price of the tips, but the sheer volume of tips that are needed to utilize all the cleaning options is what starts to add up, owners say. In addition, many find the water tank to be cheaply made and worry that it won't be durable, which could be a hidden and unexpected cost.

Where To Buy
Waterpik Ultra Water Flosser

 (7,556 reviews)
Buy new: $59.99 $59.00   46 New from $51.46

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Contributors to give the Waterpik Ultra Water Flosser 4.4 out of 5 because it not only cleans teeth thoroughly, but has a number of attachments and settings for different comfort levels and flossing goals. Many love the pressure settings, allowing more sensitive gums to work their way up to a higher-powered clean, reversing gum damage and even helping to remove stains.

Review: Waterpik Ultra Water Flosser, Contributors to, As of March 2014


Contributors to like the Waterpik Ultra Water Flosser because it can get into the most-hard-to-reach places, and according to many is able to dislodge food from and clean places that a toothbrush or manual floss just can't reach, feeling like they just left the dentist after every use. In addition, the large tank gets high marks as some reviewers note that it can hold enough liquid for an entire cleaning, whereas previous models had to be refilled in the middle of cleaning.

Review: Waterpik Ultra Water Flosser, Contributors to, As of March 2014


The author notes the reputation of both the Waterpik brand and the Ultra Water Flosser, which cleans plaque and prevents new buildup from forming. It isn't clear how the Ultra Water Flosser earns the top spot on this list, but the ability to use either water or mouthwash, 10 speeds and six tips provide customization options to fit almost every mouth.

Review: 10 Best Products for Dental Hygiene, Lyndsie Robinson, Not Dated

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