Fortuna, F. and Nasya, I.R. 2026. A Triangular Cut for Premaxillary Setback on Severe Crooked Protusio Maxilla Congenital with Cleft Lip Bilateral : A Case Report. Scientific Journal. 5, 3 (May 2026), 335–341. DOI:https://doi.org/10.56260/sciena.v5i3.367.