Visit 3 Subjects will be examined 3 weeks after visit 2. All clinical measurements will be repeated. Each subject will return with any unused rinse or two empty bottles of rinse. Compliance will be determined by regulating the amount of rinse dispensed on a 3 week basis and by the measurement of any unused rinse at the end of two 3 week periods. Additional rinse will be given to each subject after visit 3 for use until the final visit.