Princess has had terrible teeth/gums since day 1. I'm currently using Vet's Best Dental Care Gel (Glycerine, Aloe, Pectin, Neem Oil, Grapefruit Seed Extract, Baking Soda, Papain and Natural Flavors) and a bio-active silver hydrosol spray with pretty good results. I use the dental gel on a disposable oral swab (Den Tips) and she's good about letting me spray the silver hydrosol on her gums.