en تخصصي Special مقالات اصيل Original Article <span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><span style="font-size:12.0pt"><span style="line-height:150%">Background:</span></span></b><span style="font-size:12.0pt"><span style="line-height:150%"> Achieving precise three-dimensional control of the chin segment during genioplasty is crucial for an optimal outcome. However, traditional methods using hands, clamps, or forceps can obstruct the surgical field and increase the risk of rotational errors. This paper describes a straightforward technique looping a stainless-steel wire through a single midline intermaxillary-fixation (IMF) screw to create a temporary handle that provides excellent control without impeding the osteotomy site.</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><span style="font-size:12.0pt"><span style="line-height:150%">Methods:</span></span></b><span style="font-size:12.0pt"><span style="line-height:150%"> After the chin segment is osteotomized and mobilized, a single IMF screw is placed at the symphyseal midline of the inferior mobile segment. This placement is performed under direct vision, ensuring it is clear of tooth apices and mental foramina. A stainless-steel wire is then looped through the head of the screw to form a rigid handle. This handle allows for controlled translation and rotation, enabling precise contouring and fixation of the bilateral plates. The handle is removed prior to wound closure.</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><span style="font-size:12.0pt"><span style="line-height:150%">Results:</span></span></b><span style="font-size:12.0pt"><span style="line-height:150%"> In an adult case, this wire handle allowed precise anteroposterior and vertical translation, as well as controlled rotation. The technique eliminated the need for manual manipulation that could obstruct drilling and screw insertion. No intraoperative complications were observed. The maneuver required minimal additional time and no specialized instruments, using only a standard IMF screw and wire.</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:&quot;Times New Roman&quot;,serif"><b><span style="font-size:12.0pt"><span style="line-height:150%">Conclusion:</span></span></b><span style="font-size:12.0pt"><span style="line-height:150%"> The midline IMF-screw wire handle is a low-cost and reproducible adjunct that significantly facilitates the manipulation of the chin segment during genioplasty. With careful placement, this technique can improve both the accuracy of the procedure and the overall surgical workflow.</span></span></span></span></span><br> &nbsp; Genioplasty, Intermaxillary Fixation Screw, Mandible, Osteotomy, Segment Control, Orthognathic Surgery 0 0 http://wjps.ir/browse.php?a_code=A-10-466-84&slc_lang=en&sid=1 Ali Moradi 100319475328460017987 100319475328460017987 No Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran Ali Mirzaei 100319475328460017988 100319475328460017988 No Student Research Committee, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran Ricardo Grillo 100319475328460017989 100319475328460017989 No Department of Surgery, Prosthesis and Maxillofacial Traumatology, School of Dentistry (FOUSP), University of São Paulo, São Paulo, Brazil Sina Samieirad 100319475328460017990 100319475328460017990 No Otolaryngology–Head & Neck Surgery, Private Practice, Mashhad, Iran Sahand Samieirad : SamieeRadS@mums.ac.ir 100319475328460017991 100319475328460017991 Yes Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran