Do you brush your teeth when fasting?

Just wondering, does everyone brush your teeth when fasting? Or, do you feel you don't need to because you're only drinking water?

I noticed when brushing last night my gums were a lot healthier than when I started my fast (8 days in on a strict water fast).

When I eat carnivore my gums don't bleed when I brush and they are a lot healthier. Any time I reintroduce carbs the bleeding comes back and my gums are bright pink and inflamed. This usually takes about a month.

Does anyone else notice this as well?