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ADA Seal Product Report

Wrigley's Extra Sugarfree Gum

Wm. Wrigley Jr. Company
ADA Seal Statement 
"The ADA Council on Scientific Affairs’ Acceptance of Wrigley's Extra Sugarfree Gum is based on its finding that the physical action of chewing Wrigley's Extra Sugarfree Gum for 20 minutes after eating, stimulates saliva flow, which helps to prevent cavities by reducing plaque acids and strengthening teeth."
Basis for Acceptance 
A company earns the ADA Seal for its product by providing evidence that meets the ADA criteria for safety and efficacy.  The ADA Council on Scientific Affairs carefully evaluates the evidence according to the Guidelines for Participation in the ADA’s Seal of Acceptance Program and any individual product guidelines if they exist.  In addition, the ADA Council has adopted a specific guideline for this product category called Sugar Free Chewing Gums to Help Reduce-Prevent Cavities.  There are two ways a sugar-free chewing gum can demonstrate it meets the ADA Guidelines:
  • through Clinical Studies
  • using Surrogate Tests 
Both are valid for showing product safety and efficacy.  They are described below.

Clinical Studies:  One way sugar free gums that help prevent and reduce cavities can earn the Seal is by being used in clinical studies. The clinical studies compare actual reductions in cavities between two groups of tests subjects.  The first group chewed gum; the second group did not.  In these types of studies, the results need to show that the group chewing the gum developed significantly fewer cavities than the non-chewing group.  Seminal clinical studies were performed by the Wrigley Corporation.1  Those studies demonstrated that children who chewed sugar-free gum for 20 minutes, 3 times a day following meals had significantly fewer cavities than children who did not chew sugar-free gum.

  1  The effect of chewing sugar-free gum after meals on clinical caries incidence. Beiswanger BB, Boneta AE, Mau BS Katz BP, Proskin HM, Stookey GK. JADA 1998; 129:1623-1626.

Effect of After-meal Sucrose-free Gum-chewing on Clinical Caries. Szoke J, Banoczy J, and Proskin HM, (2001) J Dent Res 80(8):1725-1729, 2001.

Surrogate Tests:  Another valid method that can be used to establish efficacy of sugar free gums for helping to reduce decay is surrogate tests. These tests measure surrogates that have been shown to correlate with the development of cavities.  For sugar free gums, these surrogate tests include effect on salivary flow (i.e. how much saliva is produced by chewing gum), effect on salivary pH (i.e. a measure of saliva acidity) and the ability of salvia to remineralize teeth (i.e. make them more resistant to tooth decay).  Well-designed surrogate tests are much quicker and easier to do than clinical studies, but are just as good at showing product effectiveness.  The surrogate tests for Acceptance of sugar free gums are detailed in the ADA Guidelines for Sugar Free Gums to Help Reduce/Prevent Cavities (2010).

Acceptance of Extra Sugarfree Gum was awarded based on the results of clinical studies given in the ADA Guidelines for Sugar Free Gums to Help Reduce /Prevent Cavities to earn the ADA Seal of Acceptance.
Brief Description of Product, Indications and Directions for Use 
  • A sugar free slab chewing gum.
  • Adults & Children 4 years of age or older. 
  • For fun, chew any time. 
  • To help clean, protect and strengthen teeth and fight cavities too, chew for at least 20 minutes after eating or drinking
  • Comes in 5 and 15 pieces packages in the following flavors:  Wrigley’s Extra sugar-free Peppermint, Spearmint, Cinnamon, Classic Bubble, Cool Green Apple, Wildberry Frost, Cool Watermelon, Polar Ice, Winterfresh & Supermint
Ingredients 
Active Ingredients:
n/a

Inactive Ingredients:
Sorbitol, gum base, glycerol, mannitol, natural and artificial flavors, hydrogenated starch hydrolysate, less than 2% of: aspartame, acesulfame K, soy lecithin, BHT (to maintain freshness), colors
Label Warnings 
Phenylketonurics:  Contains phenylalanine
Company Information 
Additional information about the product, including whether coupons or promotions are available, is available on the company's web site.
Wm. Wrigley Jr. Company Global Innovation Center 1132 W. Blackhawk Street Chicago, IL 60622 Ph: 1 800 WRIGLEY www.wrigley.com