If you have bad breath, gingivitis or periodontitis …A probiotic lozenge or mouthwash might be your best bet.
At The Keating Hotel in San Diego, there were little branded bottles of mouthwash in the bathrooms.
mouthwash mouth·wash (mouth'wŏsh')
A medicated liquid for cleaning the mouth and treating diseased mucous membranes. Also called collutory.