An innovative gel that forms a layer over teeth and then recruits calcium and phosphate ions from saliva to build new enamel has the potential to change dental treatment. To date, we don't have any way to regenerate the tough outer layer of enamel on our teeth as it erodes with age.
isnt that why naHp DOES already in a dental setting/implant, but there hasnt been definitive studies where its conclusive with OTC usage, eventhough there are tons of nahp products out there already from 5-10% with extremely questionable concentration and efficacy as manufactors, often from asia, dont tell thier process of making the toothpastes, and the true concentrations(Davids hide thier ingredients and process so be warned, also it tends to be highly abrasive). i have used some, i noticed most of them are just whitening toothpaste(hence the placebo effect), or overly saturated mint.