Human teeth can be kept for a lifetime provided you brush them and floss them. But when poor dental hygiene causes them to chip or crack, then it is science which must come to the rescue. Scientists in China are experimenting with urine to re-grow teeth in a cultural medium. The stem cells in rats grew into a teeth-like structures and it all took place in a urine medium. The teeth were not as strong as real teethbut they nevertheless resembled them to a large extent. This has sparked hopes that one day teeth can be re-grown especially for geriatric patients who have lost their God-given chomping devices. Bio-engineered tooth buds can one day be fitted into the human mouth thereby giving ailing people the chance to chew tough foods once again.
Basically the stem cells in urine could be used to grow an organ in a web-like structure. This has previously been done with liver cells and heart cells. Though still in its experimental stages, the procedure holds a lot of potential for the future. The cells in the waste product may be prodded to resemble teeth or at least teeth-like entities. Enamel and dentin both got created via this complex method. And even the pulp inside the teeth became visible. While the experiment has only been done on mice it is not hard to foresee a day when human beings will be getting dentures that are made in a culture of their own urine.