<unk> , also referred to as skeletal open bite, is a relatively common condition characterised by excessive vertical facial development. Its causes may be either genetic or environmental.<unk>  is "a common dentofacial abnormality." Its diagnosis, symptomology and treatments are complex and controversial. Indeed, even its existence as a "syndrome" is disputed.
Long face syndrome
Skoptic syndrome
Otofacial syndrome
Ablepharon macrostomia syndrome
Urofacial syndrome
Malpuech facial clefting syndrome
Oneirophrenia
Branchio-oculo-facial syndrome