- Concomitant Medication: Daily doses of medication/treatments or traditional herbal ingredients/treatments which, in the opinion of the investigator, could interfere with the perception of pain. Examples of such medications include analgesics, anticonvulsants, antihistamines that cause marked or moderate sedation, sedatives, tranquilisers, anti-depressants, mood-altering and anti-inflammatory drugs. Examples of herbal ingredients/treatments include clove oil, olive oil, or other treatments that are directly applied to the oral cavity for the treatment of oral health conditions. Currently taking antibiotics or has taken antibiotics within 2 weeks of Screening and/or Baseline, Daily dose of a medication which, in the opinion of the investigator, is causing xerostomia, Individuals who require antibiotic prophylaxis for dental procedures.