Patient acceptance of a green tea-based mouth rinse

INTERVENTION: Rinse with Listerine® with green tea using 20 ml undiluted solution for 30 seconds twice a day for 14 days. In order to monitor subject compliance, unused product will be returned to study PI. CONDITION: Gingival disease; ; Gingival disease Oral and Gastrointestinal ‐ Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon PRIMARY OUTCOME: This will be a composite outcome assessment. Subjective tolerability measured through mouth burning sensation, mouth dryness, mouth pain, and dental sensitivity using a scale of 1 – 10 (1 indicates the lowest level and 10 indicates the highest level), malodor using yes/no question. In addition to taste sensation (1 – 10 scale) and texture of the mouth wash[14 days after initiation of treatment ] SECONDARY OUTCOME: This will be a composite outcome assessment. Objective tolerability though assessment of the oral tissues for erythema, ulceration, desquamation and chronic bite injury. ; Study PI will be assessing the oral tissues using a mirror, light and clinical features.[14 days after initiation of treatment ] INCLUSION CRITERIA: healthy subjects who are 18 years or older and had not been using any oral rinses (including fluoride or bleaching rinse) for the past 2 weeks. In addition, study subjects should have stable oral condition with no pain at baseline.