I'll guess the odds are about the same for both to happen. The enamel is an example of the bones and the bones can regenerate, if you remove all the lead and lime that clogs them. One's hair and teeth are examples of what has happened in life, no differant than a farmer looking at a horses teeth before buying it. People wishing to marry and have healthy children should seek non-vaccinated mates with perfect hair and teeth who eat only live foods! Now you know why we are all sickly humans, sexual desires ignores picking a healthy mate and why few humans can trace their familys back 7 generations. Today 3rd generations are becoming sterile or born sterile and the future looks worse, far worse!
"IF" you pH remians 7 day and night because you have a healthy stomach and not because of a fake aid, then your teeth will be repaired to their best state possible. To do this you may have to become a grass eater.