Advancements in microvascular free-flap surgery and virtual surgical planning (VSP, 3D Systems) have allowed significant development in immediate reconstruction and dental rehabilitation of maxillofacial defects. These techniques are commonly utilized for dental rehabilitation of ablative defects of the head and neck affected by pathology. The widespread use of the Jaw-in-a-Day protocol has shown to be a feasible and predictable way to immediately reconstruct and dentally rehabilitate in one surgery. However, the literature on applying these advanced techniques in the trauma setting is limited. Furthermore, there are few reported cases in which a Jaw-in-a-Day protocol is used in conjunction with the full arch dental rehabilitation of the opposing jaw. In this scenario, restoring just one arch would not restore a fully functional occlusion. This case report describes a concomitant mandibular Jaw-in-a-Day with a maxillary All-on-4 in one surgery for a patient who sustained severe facial trauma from a self-inflicted gunshot wound.