I don't use toothpaste, all I eat is what you should be eating, so peppercorns and salt pieces don't get stuck in between my teeth. I do brush my teeth, and tongue, just out of habit, with water. I don't use abrasive chemical paste, so the damage to my teeth is next to non-existent. No reason to do it, just makes me feel better. I'm only another goy after all.
Idk, but I have no breath smell or body odor.
Atleast as far as I'm aware. Maybe every single person is just lying to me that I have no smell, who knows.

If your tongue is white, you should brush using toothpaste with no fluoride, because your tongue is supposed to be red, until you become healthy of course. This means your breath smells bad, you can plainly see it. Eventually it'll return to its natural state if your diet is correct, but until then, your breath is not meant to be repulsive. How will you reproduce if your mouth is repulsive? You won't. So I do recommend masking the smell.

All toothpaste is, is a material suspended in a paste of chemicals meant to act as an abrasive to 'brush' or destroy the surface layer of your enamel. This is what toothpaste actually is, an abrasive. The chemical paste these abrasive materials are suspended in is the problem you're asking me to solve. If you're not meant to eat it, what's it doing in your mouth? Haha.

Fluoride is in toothpaste to build a false layer of enamel over your teeth, 'strengthening' them. It's really just a crust of minerals hardened over your teeth. This is the number one cause of calcification, most commonly seen as a white hard layer of 'tooth-like' material across the lingual(inside) surface of your mandibular anterior (lower&front) teeth. This is due to the fact that when you brush your teeth, this is the least brushed surface. So the fluoride will remain on the surface of your teeth and cause severe calcification, look up pictures. It is horrid.

This is the loop of the slave: brush teeth with a fluoride based abrasive paste, so that when I eat my shit food later, the shit food will harden on the surface of my teeth. Just for you to brush away this layer the next time you brush. It's just a cycle of artificially building a layer of mineral, imitating your tooth's natural enamel with fluoride, and destroying it using an abrasive with a brush to expose a 'fresh layer' of artificial minerals.

Man-made problems require man-made solutions. So don't indulge with what is man-made. Simple.

This is just the reality of toothpaste, no coping.

The white layer on your tongue, is due to what you eat, it's minerals. Primarily from the fluoride you leave in the valleys of taste buds on your tongue. It'll go away, but until then, mask your foul mouth smell you lethargic beast.

This is the point of fillings, so that the 'cavernous hole' will be filled and not expand further. The only solution is pulling the tooth or having it filled, it will only lead to further complications in the future if not addressed now.
I recommend gold/ceramic tooth fillings. Unreactive materials. I strongly disapprove of non-gold metal fillings (which are almost non-existent today). Ensure the fillings are not composite, as it's just an 'acrylic' resin which is cured using UV light. This would be like filling your tooth with 3D printer resin and holding a UV light up to it. Not ideal in the slightest. Will require further care in the future. I suspect the 2/3 of dental care moving toward permanent 'acrylic' resin appliances will just lead to the next lead generation. This time it'll be resin. Too bad noone will ever catch on though, as it's tested on 80 year old dentulous patients who will die before any long-term affects take place.

The ideal scenario is that you didn't have the cavity in the first place. The next best thing would be to have the tooth filled. The next would be having it removed. You do not want your tooth to die and rot inside of your mouth. That is the worse scenario. Unless you plan on 'oil pulling' after every unnatural meal. Which is most likely all of them, go get it filled with gold.