Salivary Flow Promoted by Sugar-Free Chewing Gum

Inclusion Criteria: * be at least 18 years of age * have the ability to understand the information contained in the informed consent without the need for cognitive or language interpretation from any other person or source * read, comprehend and sign the Informed Consent and other necessary paperwork prior to initiation of study procedures * be in good general health based on his/her medical and dental history * have a reasonably functional dentition with a minimum of 20 natural teeth (8 of which are posterior teeth) * chew gum at least occasionally, no less than one time per month * have normal salivary flow as demonstrated by being able to expectorate ≥ 1.5 mL (0.3 mL/min) of whole non-stimulated saliva over a 5-minute period * be willing to participate in the study, be able to follow the study directions, and be willing to return for all specified visits at their appointed time, and * be willing to postpone all elective dental procedures, at the Principal Investigator/Examiner's discretion, until the study has been completed. Exclusion Criteria: * advanced periodontal disease * five or more grossly decayed, untreated dental sites (cavities) * pathologic lesions of the oral cavity (suspicious or confirmed) * full or partial dentures, or fixed orthodontic appliances, with the exception of a fixed, lower lingual retainer * (if female) a medical history indicating that the subject is pregnant or currently breastfeeding * current participation in another clinical research st…