“…4 The identification of sex hormone receptors in and around the temporomandibular joint (TMJ) and the pubertal onset of CH strongly suggest a hormonal influence in the etiology. Trauma, [5][6][7][8][9] infection, 1,5,10,11 heredity, 3,4,[12][13][14][15] intrauterine factors, 6,16,17 and hypervascularity 15,18,19 have also been implicated as causative factors. Approximately one third of bilateral CH patients have a family history of the condition.…”