On the other hand, I know of men as old as seventy-five years who have grown another set of teeth. In 1923, Dr. Herbert Shelton wrote, that he saw a man in his 60's grow three new teeth without a change in the man's mode of life. It is obvious that the animal will not live as long when deprived of water as when receiving water. But the reader will note that no changes occur in the teeth in animals that are given water only until they starve to death. In numerous cases that we have cared for, the gum inflammation has subsided, the ulcers have healed, pus formation has ceased and the loosened teeth have become firmly fixed in their sockets, and all of this has occurred while the patient was fasting.
Bones do heal and regenerate under favorable conditions.
Even the enamel of the teeth, it seems is able to repair itself, as I have been able to demonstrate on a broken tooth of my own. Self-restoration of teeth with cavities in them have been reported by dentists within the last few years. Abscesses will often absorb while fasting, but it will usual take a lengthy fast.