Evaluation of the Safety and Efficacy of an Oxalate Gel or Negative Control on Dentinal Hypersensitivity

Inclusion Criteria:

- be at least 18 years of age;

- provide written informed consent prior to participation and be given a signed copy of
the informed consent form;

- complete a confidentiality disclosure agreement;

- be in good general health as determined by the Investigator/designee;

- agree not to participate in any other oral/dental product studies during the course of
this study;

- agree to delay any dentistry (including dental prophylaxis) until the study has been
completed;

- agree to refrain from the use of any non-study oral hygiene products;

- agree to return for all scheduled visits and follow study procedures; and.

- have at least one tooth with a Schiff sensitivity score of at least 1 in response to
air challenge and a Yeaple Probe score of 10-40 in response to tactile challenge

Exclusion Criteria:

- self-reported pregnancy or nursing;

- severe periodontal disease, as characterized by purulent exudate, generalized
mobility, and/or severe recession;

- active treatment of periodontitis;

- fixed facial orthodontic appliances;

- a history of kidney stones;

- known allergies to the following ingredients; aqua, glycerin, cellulose gum,
dipotassium oxalate, carbomer, sodium hydroxide, sodium benzoate, and potassium
sorbate

- any diseases or conditions that might interfere with the safe completion of the study;
or

- an inability to undergo any study procedures.