The problem is that when enamel – the outermost protective layer of our teeth – is lost, our body cannot regenerate it.
dailymail.co.uk
Tooth remineralisation is a naturally occurring process in the oral cavity. It is defined as a process in which calcium and phosphate ions are sourced to promote ion deposition into crystal voids (vacancy) in demineralised enamel.
en.wikipedia.org
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