What are the causes of a retruded lower jaw?

Question

What causes someone to have a retruded or underdeveloped lower jaw?

Answer 1

This is because of a person's genetic makeup. There is nothing to be done to make the jaw bigger.
Sometimes surgery is done together with orthodontics for certain situations to correct the bite.

Answer 2

An underdeveloped lower jaw or an underdeveloped upper jaw is the result of an epigenetic change during development in the womb, affecting the micro RNA that triggers the growth of the lower jaw bone and chin. If a tablet of a Homeopathic Cell Salt called Calc. Phos. 30X is given to a child at least twice daily, prior to 3 or 4 years of age, the disrupted bone can be stimulated to grow to normal size, usually resulting in a nearly or completely normal bite. If the affected bone or bones grow to be normal in size, the cause can not be genetic. The same Homeopathic Cell Salt, Calc. Phos. 30X has also been used with great success on hatchling birds with underbite (short upper bill) and on newborns of many species of grazing animals that have either short lower jaw (overbite) or short upper facial bones (underbite). The premaxillary bone is the bone most often underdeveloped on grazing animals. On grazing animal newborns, growth of the underdeveloped bone to normal takes between two and three weeks. On hatchling birds, growth of the upper bill to normal takes two to three days. Wildlife rehabbers and livestock owners have successfully stimulated the underdeveloped facial bones of many birds and animals to grow to normal using Calc. Phos. Most health food stores carry Homeopathic Cell Salts or they can be ordered on the internet.