Today I'm on a China update, they've figured out how to repair cavities and some tooth decay.

https://video.nostr.build/85e98e4c93888bc68c0c47620f402f2aaf9798cbccb4fc8783b8736be2498972.mp4

The research team of the Department of Chemistry of Zhejiang University in China🇨🇳 has invented a biomimetic enamel repair liquid. Just drop two drops of it on the defective enamel (such as the surface of caries), and within 48 hours, a 2.5-micron crystal repair layer with the same structure as natural enamel will form on the defective surface, which can be seamlessly connected with the original tissue.