Prognathism

Prognathism (prognathia) is the most common jaw anomaly.


 * Characteristics:
 * maxillary protraction (arching of the maxilla forward).


 * Division:


 * 1) Physiological:
 * 2) * the mandible also follows the position;
 * 3) * intact bite;
 * 4) * prognathic expression in the face, e.g. in Africans.
 * 5) Pathological (prognathia maxillaris):
 * 6) * only the upper jaw has changes;
 * 7) * the lower jaw is of normal shape and size;
 * 8) * its oblique position is followed by the teeth, that protrude from the mouth;
 * 9) * the upper front teeth do not touch their antagonists;
 * 10) * lower teeth cause decubitus ulcers on the palate;
 * 11) * the upper lip is shortened - it is not enough to cover the protruding teeth.


 * Alveolar prognathia: arching of the alveolus in the area of ​​the canines.
 * Dental prognathia: the upper front teeth are turned out of the mouth.