The term hyperplasia of the coronoid process of the
mandible defines an abnormal elongation of the coronoid process
consisting of histologically normal bone. The main clinical finding of
hyperplasia of the coronoid process is a progressive painless difficulty
in opening the mouth owing to the contact with the temporal surface of
the zygomatic bone or medial surface of the zygomatic arch. Computed
tomography with three-dimensional reconstruction is essential and is
the gold standard for an accurate diagnosis. The etiology remains
unknown, although several theories have been suggested. The main
aim of treatment was to restore mouth opening, and this article introduces
and illustrates the advantages of endoscopic assistance for coronoidectomy
through the classic ‘‘intraoral’’ approach and emphasize
this minimally invasive approach.
