Takagi 1967, Fromm and Lundberg 1970, Wickwire 1962, Athanasiou 1991, Lew 1993, and Enacar 1994 state the fact that osteotomies performed in order to retro-position the lower jaw, exert influence in the position of the hyoid bone, and as a consequence, in the position of the tongue.In 2000 Gu found that in patients subjected to retro-positioning of the lower jaw, the posture of the head increased its extension and the hyoid bone moved in a downward and posterior direction.
Takagi, 1967; Fromm y Lundberg, 1970; Wickwire, 1972; Athanasiou, 1991; Lew, 1993 y Enacar, 1994, afirman que las osteotomías para retroposicionar la mandíbula influye en la posición del hioides y, como consecuencia la posición de la lengua.