I used to be really good about brushing our dog's teeth regularly. Then the girls were born Then the dog got diagnosed with a heart murmur so we (and vets) are generally reluctant to put her under any kind of anesthesia. Plus she's old now. I need to find something to brush her teeth with that will at least maintain her current dental health. Her teeth aren't too bad, though there is some tartar build-up since she's around 12 years old.

Any recommendations that wouldn't be too unpleasant for her? I used to use a chlorhexidine dental solution. I could probably do that again if it's the best option...she definitely hated it though.