Oblique facial cleft, Tessier types 3, 4 and 5, is an extremely rare congenital anomaly of all facial clefts. This severe malformation requires many professional reconstruction surgeries and long-term post-surgical management, necessity of which was emphasized in this article.

Key words: craniofacial clefts, oblique facial cleft, Tessier cleft types 3, 4, 5, ortho-surgical treatment.