Bilateral hyperplasia of the coronoid processes in siblings

Congenital Hypertonia of the Temporalis Leading to Trismus Since Birth

“…Some authors believe coronoid hyperplasia could be reactive to internal derangement of the TMJ which does not hold well in our case [4][5][6]. Genetic inheritance and syndromic associations have also been suggested [6,7].…”

The hypothetical role of congenital hypotonia in the development of early coronoid hyperplasia

“…Some authors believe CH could be reactive to internal derangement of the temporomandibular joint (TMJ) (Isberg et al, 1987;Marra, 1983) or trauma (Tucker et al, 1984). Genetic inheritance (York and Cockerham, 1983) and syndromic associations have also been suggested (Leonardi et al, 2001;Ter Haar, 1974). Probably the most acknowledged explanation relies on the relative hyperactivity of the temporalis muscle.…”

Computed tomography in the investigation of bilateral mandibular coronoid hyperplasia

“…Hereditary tendencies have been reported in three families [9][10][11]. The majority of cases have occurred in pubertal males, indicating a possible endocrine influence.…”