Antiplaque and antigingivitis efficacy of an alcohol-free essential-oil containing mouthrinse: a 2-week clinical trial
Charles, C.A.; Amini, P.; Gallob, J.; Shang, H.; McGuire, J.A.; Costa, R.
American Journal of Dentistry 25(4): 195-198
2012
ISSN/ISBN: 0894-8275 PMID: 23082381 Document Number: 656162
This randomized, examiner blind, parallel group, controlled clinical study evaluated the antiplaque and antigingivitis potential of an alcohol-free essential oils containing mouthrinse (Listerine Zero) compared to a 5% hydroalcohol mouthrinse (negative control), using a 2-week experimental gingivitis model. 92 subjects, male and female, ranging in age from 18-68 years, in good general health, were assigned to one of the two treatment groups: Alcohol-free essential oils containing mouthrinse (LZ) or 5% hydroalcohol negative control (C) rinse. The mean Turesky Modification of the Quigley-Hein Plaque Index (PI) and the mean Modified Gingival Index (MGI) at 2 weeks were the primary efficacy endpoints. Following baseline examinations, subjects received a complete dental prophylaxis and began supervised rinsing with their assigned mouthrinse twice daily for 2 weeks, as their sole oral hygiene measure. 90 subjects completed the trial. At 2 weeks, LZ was more effective (P<0.001) than C in reducing plaque (23.9%) and gingivitis (10.4%).