MR Imaging of the Temporomandibular Joint in Juvenile Idiopathic Arthritis: Technique and Findings.

The term juvenile idiopathic arthritis (JIA) encompasses a group of arthritides of unknown cause that begin before 16 years of age and last for at least 6 weeks. Temporomandibular joint (TMJ) involvement has been described in up to 87% of children with JIA and has been associated with all JIA subtypes. TMJ involvement is difficult to detect clinically.

Surgical Repositioning of the Premaxilla Using a Minimally Invasive Endonasal Approach.

Objective: The aim of this study was to evaluate a technique for the surgical repositioning of the premaxilla using a minimally invasive endonasal approach.

Design: Retrospective review of clinical records.

Setting: Tertiary care, University Hospital, pediatric maxillofacial surgery unit.

SPECT-CT and intraoperative portable gamma-camera detection protocol for sentinel lymph node biopsy in oral cavity squamous cell carcinoma.

Objective: The aim of this study was to evaluate a multimodality approach to sentinel lymph node biopsy (SLNB) detection with lymphoscintigraphy and single-photon emission computed tomography (SPECT)/computed tomography (CT). When combined with intraoperative imaging by a portable gamma camera (PGC), improved SLNB accuracy and detection rate may result.

Material And Methods: A total of 42 patients selected for SLNB in node-negative T1 and T2 oral squamous cell carcinoma were retrospectively analyzed.

Rhytidectomy approach for mandibular reconstruction with microvascular free flaps after resection of mandibular benign tumors.

Purpose: Microvascular surgery has become the preferred method for mandibular reconstruction. A neck incision frequently is required for malignant tumor resections to carry out the dissection. The authors suggest a rhytidectomy approach for mandibular reconstruction with microvascular free flaps after the resection of benign tumors.

Review of secondary alveolar cleft repair.

Introduction: The alveolar cleft is a bony defect that is present in 75% of the patients with cleft lip and palate. Although secondary alveolar cleft repair is commonly accepted for these patients, nowadays, controversy still remains regarding the surgical technique, the timing of the surgery, the donor site, and whether the use of allogenic materials improve the outcomes. The purpose of the present review was to evaluate the protocol, the surgical technique and the outcomes in a large population of patients with alveolar clefts that underwent secondary alveolar cleft repair.

Osseointegrated implant rehabilitation of irradiated oral cancer patients.

Purpose: The aim of this study is to analyze implant survival in patients who received radiotherapy treatment for oral malignancies and in patients who had suffered mandibular osteoradionecrosis.

Materials And Methods: We reviewed retrospectively 225 implants placed in 30 patients who had received radiotherapy as part of the oncologic treatment. Radiation doses ranged between 50 and 70 Gy.

A 12-year retrospective analytic study of the implant survival rate in 177 consecutive maxillary sinus augmentation procedures.

Purpose: This retrospective study sought to demonstrate the outcome of maxillary sinus elevation surgery in a series of 177 procedures performed over 12 years and to determine the existence of variables that could independently predict implant survival.

Materials And Methods: A retrospective descriptive and analytic study of a series of maxillary sinus elevation procedures performed between 1996 and 2007 was undertaken. The sample was composed of patients with severe atrophy of the posterior maxilla who had been rehabilitated with osseointegrated implants placed in grafted maxillary sinuses.

Lateral pterygoid muscle dystonia. A new technique for treatment with botulinum toxin guided by electromyography and arthroscopy.

Lateral pterygoid muscle dystonia is characterized by mandibular displacement towards the opposite side of the affected muscle. It may be associated with functional disorders affecting speech, swallowing, chewing and facial symmetry. Injection with botulinum toxin is recognized as the most effective treatment.

Vertical distraction osteogenesis of a free vascularized fibula flap in a reconstructed hemimandible for mandibular reconstruction and optimization of the implant prosthetic rehabilitation. Report of a case.

Free vascularized fibular flap is considered the treatment of choice in mandibular reconstruction for extensive bone defects (over 6 centimeters) resulting from trauma, infections or tumor resections. But, when the reconstruction involves a dentate mandible, the fibula has the limit as it does not offer sufficient bone height to restore the alveolar arch up to the occlusal plane. Therefore, the deficiency in bone height makes implant placement impractical.

Bifocal transport osteogenesis for the reconstruction of adult calvarial defects: a new surgical technique.

Calvarial defects are common problems in craniofacial surgery. They may be explained by surgical interventions, infectious processes, cranial trauma or congenital anomalies. Calvarial defects are particularly challenging because they do not heal spontaneously in humans older than 24 months.

Bilateral mental nerve neuropathy as the sole presenting symptom of Burkitt's Lymphoma.

There are several pathologies that may cause alteration of the lower lip sensation, therefore a differential diagnosis is needed. Among these pathologies, we have focused on intrabone growing tumours such as Burkitt's Lymphoma. Burkitt's Lymphoma is a malignant tumour of B-Cell lymphocyte origin, classified as a Non-Hodgkin's Lymphoma.

Endoscopically-assisted transoral approach for the treatment of subcondylar fractures of the mandible.

Introduction: Treatment of subcondylar fractures of the mandible is one of the most controversial aspects in the field of maxillofacial traumatology. This controversy centers on the positive and negative aspects of open and closed approaches for the treatment of this kind of fractures. Open techniques lead to good reduction and osteosynthesis, but have a high risk of injury to the facial nerve and produce facial scars.

Clinical results in the management of Frey's syndrome with injections of Botulinum toxin.

Introduction: Frey's Syndrome is defined by facial hyperhidrosis in the preauricular region unleashed by gustatory stimulus and caused mainly by parotidectomy. Several treatment and prevention measures have been proposed, with no conclusive results. Recently, injections of Botulinum Toxin have been suggested, obtaining encouraging results.