I have absolutely zero idea what chemicals and substances can be used for what and have zero idea how to look something like this up. But I come from a family with genetically poor, soft teeth. I have been in agony for a month now with rotten teeth because I can’t afford a dentist (nhs isn’t accepting anyone and our old practice kicked us out because of not coming during Covid where they would only let you have an appointment if it was urgent) and I was wondering if there was some kind of spray, hardening gel or something that could be modified to be a protective layer on teeth? Obviously it wouldn’t be something to prevent breakages and such, but something that could add a layer of protection from damage from sugary and acidic foods and drinks. I feel like such a thing would be an incredible product for those who struggle to afford dental care, but wouldn’t be very popular amongst the dental industry. I feel like… with how many products exist to help all sorts of mouth health problems (numbing agents, gels for internal cuts and canker sores, whitening agents etc) that it really shouldn’t be too much of a reach.