Patient with trigonocephaly may present a prominent “keel”, forehead accompanied by recession of the lateral orbit rims, hipotelorism and constriction of the anterior frontal fossa. In a period between 2007 and 2011, in the “Child Salesi Hospital”, were treated for nonsyndromic variety of metopic synostosis eleven children; the age of ranges from 6 months to 9 months. The most important aims of our new surgical technique is the achievement of symmetry and normal proportion and reconstruction of the fronto-forehead unit but remaining in a very conservative treatment. The morphology and position of supraorbital ridge-lateral orbital rim region are key elements of upper facial aesthetics. This new “open-wind” technique for the reconfiguration of the bilateral supraorbital bar requires a medial incomplete osteotomy that involve only the internal cortex of the fronto-nasal region. So both lateral orbital walls are bent inwardly and tilting forward, as CT scan planning, with a greenstick fracture pivoting on the preserved medial fronto-nasal region. This “open-wind” conservative technique allow to avoid the most important complication that may result with traditional way such as dead space in the anterior cranial fossa, infections, blood loss but with an achievement of satisfactory craniofacial form.