11/44. hemifacial spasm following a blow to the mandible causing blunt injury to the peripheral facial nerve.A 40-year-old male presented with hemifacial spasm manifesting as paroxysmal spontaneous twitches in the left peribuccal region persisting for 3 months. The symptoms began 7 days after an accident, when a signboard hit his left mandibular angle. physical examination showed no trauma-related change in his face, and no neurological abnormality except for the twitches. magnetic resonance imaging also showed no abnormalities of the facial nerve and adjacent regions. Electrophysiological studies showed synkinesis, so hemifacial spasm caused by peripheral facial nerve injury was suspect- ed. The symptoms subsided 4 months after the injury. Blunt injury to the facial nerve branches might cause hemifacial spasm.- - - - - - - - - - ranking = 1keywords = mandible (Clic here for more details about this article) |
12/44. Post-traumatic bifid condyle associated with temporomandibular joint ankylosis: report of a case and review of the literature.Bifid condyle is a rare condition. Most initially reported cases were found in studies conducted on skeletal specimens. While increasing numbers are being reported on living persons, most of them are asymptomatic and have been found on routine dental radiographic examination for other dental complaints. Most of the cases of bifid condyle reported so far have occurred unilaterally and predominantly on the left side. Bifid condyle associated with temporomandibular joint ankylosis is very rare with only 2 cases reported in the English-language literature as far as we know. An additional case of bifid condyle associated with temporomandibular joint ankylosis, involving the right side of mandible, is presented as well as a review of the literature on bifid condyles including those associated with temporomandibular joint ankylosis.- - - - - - - - - - ranking = 0.25keywords = mandible (Clic here for more details about this article) |
13/44. Facial and oral reconstruction following trauma and failed chin implant: a case report.Functional and esthetic reconstruction of a patient with microgenia who sustained traumatic injury was successfully accomplished using Branemark System osseointegrated implants (Nobel Biocare USA, Inc., Yorba Linda, CA) to support a permanent dental prosthesis following mechanical and biologic reconstruction of the anterior mandible and chin. A 25-year-old glycine chin implant previously used for facial esthetic enhancement had eroded the anterior cortical plate and migrated through the medullary bone, compressing the periosteum into the apex of the anterior tooth roots. Further destruction of the lingual cortex with risk of fracture was imminent. After removal of the chin implant, a cancellous bone graft was held in place with a titanium mesh frame. The prosthetic rehabilitation consisted of two phases of mandibular implant placement followed by the construction of a porcelain-fused-to-gold implant-supported fixed prosthesis, restoring the occlusal vertical dimension as well as appropriate lip support. Restoration of function was superior to the pretreatment condition.- - - - - - - - - - ranking = 0.25keywords = mandible (Clic here for more details about this article) |
14/44. The vascularized fibular flap for mandibular reconstruction.Vascularized fibular bone grafts have advantages over other bone grafts in the restoration of the contour and function of defective mandibles. The fibular graft can be tailored to fit even major mandibular defects; in combination with preformed temporomandibular joint prostheses total mandibular reconstruction can be performed in a single procedure. The fibular transplant is considered ideal for the insertion of implants to support dental suprastructures to obtain maximal oral rehabilitation. We have used fibular grafts in eight cases for primary or secondary reconstruction of a variety of mandibular defects resulting from cancer, chronic osteomyelitis or gunshot injuries. The results have been most encouraging with respect to function and cosmetic appearance. There have been no transplant failures and minimal donor site complications.- - - - - - - - - - ranking = 0.25keywords = mandible (Clic here for more details about this article) |
15/44. Single osteotomized iliac crest free flap in anterior mandible reconstruction.While the iliac crest flap provides a natural contour for the lateral segment of the mandible, for the anterior segment en bloc, the use of the iliac graft, even harvested in a V shape, fails to yield a three-dimensional natural-shaped reconstruction. In this report, we present our experience with reconstruction of the anterior segment of the mandible using a single osteotomized free iliac crest flap in 5 patients. The study comprised 4 male patients and 1 female patient, their ages ranging between 34-82 years. In all patients, composite iliac osteomusculocutaneous flaps were harvested based on the deep circumflex iliac artery in the standard manner, and the bony segment of the flap was divided into two segments, performing a single osteotomy. The fixation of bone segments was performed in new positions, sliding the segments in different planes to provide the original shape of the resected mandible segment, and in a manner appropriate to the defect. The overall flap success rate was 100%. In no cases were wound infections or hematomas observed. x-rays showed bone healing without resorption. In conclusion, the use of a single osteotomy for an iliac crest flap in the reconstruction of the anterior segment of the mandible is a simple and safe procedure, and provides a natural and acceptable jaw appearance. The risk of devascularization is quite low when compared with the multiple osteotomy procedure, and it does not need to be fixed with complex devices such as reconstruction plates or external fixators.- - - - - - - - - - ranking = 2.003159806255keywords = mandible, jaw (Clic here for more details about this article) |
16/44. Vertical distraction of fibula transplant in a case of mandibular defect caused by shotgun injury.This case demonstrates the successful aesthetic and functional reconstruction of a complex facial gun-shot injury with extended bone defects and soft tissue destructions using a 3-step procedure. Initially, a reconstruction plate was inserted, later a fibula transplant enabled the basic reconstruction and finally was distructed in a 3rd session. The rationale behind the sequencing of surgical sessions was the extended bony defect and soft-tissue destruction. The main problem in this type of wound is hypoxia or anoxia of the receptor bed for the transplant. A microvascular anastomosized bone transplant is necessary for sufficient oxygen tension in the recipient site. The anatomical dimensional disproportion of the transplanted free fibula graft and the shape of the mandible were corrected prior to the insertion of dental implants by means of vertical distraction.- - - - - - - - - - ranking = 0.25keywords = mandible (Clic here for more details about this article) |
17/44. orthognathic surgery for occlusal reconstruction of old malunited jaw fracture.Old malunited jaw fractures of nine patients who underwent orthognathic surgery for occlusal reconstruction were clinically evaluated. Early surgery on fractures of the jaw is the optimal treatment when due attention must be paid to occlusion. Since occlusal revision surgery subsequent to inaccurate diagnosis and inappropriate surgery is certainly very difficult and often unsuccessful, surgeons need to pay special attention to this situation.- - - - - - - - - - ranking = 0.018958837529914keywords = jaw (Clic here for more details about this article) |
18/44. Vertical distraction osteogenesis of fibula transplant for mandibular reconstruction: a case report.Bone continuity defects in the mandible are caused by tumor surgery, trauma, infection, or osteoradionecrosis. Today, reconstruction of long-span mandibular defects with a free fibular flap is a routine procedure. However the bone height of the mandible after reconstruction is about half that of the dentulous mandible. Therefore, the deficiency in bone height makes implant placement impractical. In our case, because it was necessary to restore the mandibular height, a vertical distraction osteogenesis was performed on the grafted mandible of the patient who was referred to our clinic with a reconstructed mandible owing to a gunshot injury. As a result, the vertical discrepancy between the fibula and the native hemimandible of the patient was corrected. And the placement of dental implants was performed without any complications. In conclusion, we believe that the vertical distraction osteogenesis of free vascularized fibula flaps is a reliable technique that optimizes implant positioning for ideal prosthetic rehabilitation.- - - - - - - - - - ranking = 1.5keywords = mandible (Clic here for more details about this article) |
19/44. External and internal rigid fixation.A 25-year-old labourer sustained submandibular and intra-oral injuries in an unusual industrial site accident. He fell from above onto steel reinforcing rods which were set in concrete and projecting two metres above the concrete floor. He was impaled by a rod which entered the mouth beneath the right side of the mandible and exited from the mouth passing upwards in front of the nose. The management of this patient is discussed with particular emphasis on the method of obtaining an airway for surgery. Due to the proximity of the rigidly embedded reinforcing rod to the nose, mouth and midline of the neck, an awake tracheostomy under local anaesthesia was conducted. The alternatives to this approach with their potential complications are discussed. In addition possible pre-, peri- and post-operative surgical complications for this case are outlined.- - - - - - - - - - ranking = 0.25keywords = mandible (Clic here for more details about this article) |
20/44. Self-healing traumatic bone cysts.The etiology and pathogenesis of traumatic bone cyst are still far from being conclusively established with multiple theories, names, and forms of management being proposed and used. The rarity of these lesions in the older age groups suggests that self-healing can occur. This article presents two well-documented cases of what clinically and radiographically were consistent with so-called "traumatic bone cyst" of the mandible, which have appeared to heal without surgical intervention, thus providing additional information to our understanding of the biologic nature of this entity. Case 1 involved a 14-year-old boy with a lesion of the anterior left mandible that was monitored for 7 years and 5 months. Case 2 involved a 19-year-old female patient with a lesion of the right mandible that was monitored for 2 years and 9 months. In both cases, intraosseous biopsy or other surgical procedures were not undertaken. By the time both patients approached age 22, their lesions had resolved and the trabecular bone pattern radiographically approached normal.- - - - - - - - - - ranking = 0.75keywords = mandible (Clic here for more details about this article) |
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