More effective for Special Dental needs – Clinical Results

The Waterpik® Water Flosser is 3X as Effective as String Floss for Orthodontic Patients

The Effect of a Dental Water Jet with Orthodontic Tip on Plaque and Bleeding in Adolescent Orthodontic Patients with Fixed Appliances.
Sharma NC, Lyle DM, Qaqish JG, Galustians J, Schuller R. Am J Ortho Dentofacial Orthop 2008; 133(4):565-571.

Plaque removal for orthodontic patients

Graph showing Waterpik is 3X more effective for orthodontic patients

Plaque removal for orthodontic patients

Graph showing Waterpik is 5X more effective for orthodontic patients than brushing alone

Reduction of gingival bleeding for orthodontic patients

Graph showing that Waterpik reduces gingival bleeding for orthodontic patients


To compare the use of a manual toothbrush and the Waterpik® Water Flosser with the Orthodontic Tip to manual toothbrushing and flossing with a floss threader on bleeding and plaque biofilm reductions in adolescents with fixed orthodontic appliances. A control group consisted of brushing only.


One hundred five adolescents with fixed orthodontics participated in this single-center, randomized study. Bleeding and plaque biofilm scores were collected at baseline and days 14 and 28.


The Waterpik® Water Flosser was over 3 times more effective than flossing and over 5 times more effective than brushing alone for the reduction of plaque biofilm. For bleeding, the Water Flosser was 26% better than flossing and 53% better than brushing alone.


Adding a Waterpik® Water Flosser with the Orthodontic Tip to manual toothbrushing is significantly more effective at improving oral health in adolescent orthodontic patients, including those with braces, than adding manual floss or brushing only.

Waterpik® Water Flosser: More Than 2X As Effective As String Floss for Implant Patients

The Effect of a Water Flosser with Plaque Seeker Tip® on Gingival Bleeding for Implant Patients
Magnuson B, et al. Comparison of the effect of two interdental cleaning devices around implants on the reduction of bleeding: A 30-day randomized clinical trial. Compend of Contin Ed in Dent 2013; 34(Special Issue 8):2-7. Study conducted at Tufts University, School of Dental Medicine, Boston, Massachusetts.

Reduction of gingival bleeding – 30 day results

Graph: twice as effective in reducing gingival bleeding for implant patients


To compare the efficacy of a Waterpik® Water Flosser to string floss for implant patients.


Subjects were randomized into two groups; Group 1 used a manual toothbrush and a Waterpik® Water Flosser with the Plaque Seeker® Tip (WF) and Group 2 used a manual toothbrush and string floss (SF). There were 22 implants in each group and the primary outcome was the reduction in the incidence of bleeding on probing. Subjects brushed twice a day and used either the WF or SF once a day.


There were no differences between the groups at baseline. At 30 days, 18 of the 22 (81.8%) implants in the WF group showed a significant reduction in BOP compared to 6 of the 18 (33.3%) from the floss group. The WF group experienced 145% better reduction in gingival bleeding around implants vs. the string floss group (p=0.0018).


The Waterpik® Water Flosser is significantly more effective than string floss for improving gingival health around implants and is safe to use.

Waterpik® Water Flossers Significantly Reduce Plaque Biofilm, Gingivitis, and Bleeding for Patients with Diabetes

Comparative Evaluation of Adjunctive Oral Irrigation in Diabetes.
Al-Mubarak S, Ciancio S, Aljada A, Awa H, Hamouida W, Ghanim H, Zambon J, Boardman T, Mohanty P, Ross C, Dandona P. J Clin Periodontol 2002; 29:295-300.

Reduction of gingival bleeding for diabetic patients

Graph: reduction of gingival bleeding for diabetic patients

Reduction of gingival inflammation for diabetic patients

Graph: reduction of gingival inflammation for diabetic patients


To compare the addition of the Waterpik®Water Flosser with the Pik Pocketsubgingival irrigation tip to routine oral hygiene on the periodontal health of people with diabetes.


52 subjects with periodontal disease and either type 1 or type 2 diabetes participated in this 3-month randomized clinical trial. All subjects had scaling and root planing at baseline then were assigned to either add a Waterpik® Water Flosser with the Pik Pocket Tip twice daily to their oral hygiene routine or to continue practicing their regular oral hygiene routine. Periodontal health was measured via clinical and metabolic parameters.


Adding the Waterpik® Water Flosser was superior to normal oral hygiene in reducing the traditional measures of periodontal disease: plaque biofilm, gingivitis, and bleeding on probing. The Water Flosser also reduced the serum levels of proinflammatory cytokines IL-1B and PGE2, as well as the level of reactive oxygen species, a bacteria and host-mediated pathway for tissue destruction implicated in the pathogenesis of over 100 conditions.


The Waterpik® Water Flosser provided significant periodontal health benefits, both clinically and biologically to people with diabetes.

The Waterpik® Water Flosser: An Effective Alternative to Subgingival Antibiotic Treatment for Periodontal Maintenance Patients

Periodontal Maintenance Following Scaling and Root Planing, Comparing Minocycline Treatment to Daily Oral Irrigation with Water.
Genovesi AM, Lorenzi C, Lyle DM et al. Minerva Stomatol 2013; 62(Suppl. 1 to NO. 12):1-9. Study conducted at the Tuscan Stomatologic Institute, Department of Dentistry, Versilia General Hospital, Lido di Camaiore (LU), Italy.

Percent improvement of bleeding on probing after 30 days

Graph: 5% more effective improving bleeding on probing

Percent improvement of pocket depth after 30 days

Graph: 4% more effective improving pocket depth

Percent improvement of clinical attachment level after 30 days

Graph: 6% more effective improving clinical attachment level


Assess the efficacy of daily Waterpik®Water Flossing in comparison to subgingival minocycline treatment for subjects with moderate to severe periodontitis.


In this single-center, parallel, single blind, randomized clinical study, thirty subjects with moderate to severe periodontitis were placed into a minocycline-treated group or a Water Flossing group. Scaling and root planing was carried out, and both groups received instruction on proper home-based oral hygiene. One group was administered minocycline inside their deepest periodontal pockets at the initial hygiene visit. The second group was instructed to use a Waterpik® Water Flosser once a day. Clinical and microbiological parameters were measured at baseline and repeated after 30 days.


Both the Waterpik® Water Flosser and minocycline treatment groups experienced a significant reduction in all clinical parameters tested at 30 days. The Water Flosser group reduced bleeding 81% vs. 76% for the minocycline group. Moreover, both procedures effectively reduced the typical parameters of periodontitis (bleeding on probing, pocket depth, and clinical attachment levels).


The Waterpik®Water Flosser is an effective alternative to subgingival antibiotics for periodontal maintenance patients over a 30 day period.