It is therefore of the utmost importance to consider that full, wide defects of the soft and hard palate are not considered within this classification when in the soft palate, they are rather considered hereditary defects. Kan-ichi Seto did mention it in 2003 HS classification, and referred to it as H6SODxT3 full defect without soft palate involvement, impossible to determine oral opening degree and with no tooth presence.
Así, es de suma importancia considerar que defectos amplios totales de paladar duro y blando no son considerados en dicha clasificación en paladar blando se consideran más como defectos congénitos; quien lo menciona es Kan-ichi Seto en 2003 clasificación HS, refiriéndose a este como H6SODxT3 defecto completo sin involucrar paladar blando, imposible determinar el grado de apertura bucal y sin presencia dental.