Is there any way to slow tooth decay after it has started?

I have a cavity, but I don't have dental insurance so I can't go to the dentist right now. Anyway, does anyone know if there is a way to slow the decay or to improve it...like with calcium supplements or something like that? I already brush try to take care of them the best I can. Any ideas?
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G'day Close2u9579, Thank you for your question. First of all, you have my sympathy. Secondly, I would suggest that you see a dentist as it can lead to pain, tooth loss, infection, and, in severe cases, death. It will save you money to have it treated now. Destroyed tooth structure does not fully regenerate, although remineralization of very small cavities may occur if dental hygiene is kept at optimal level. For small cavities, topical fluoride is sometimes used to encourage remineralization. For larger lesions, the progression of dental caries can be stopped by treatment. The goal of treatment is to preserve tooth structures and prevent further destruction of the tooth. Generally, early treatment is less painful and less expensive than treatment of extensive decay. I attach sources for your reference. Regards
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