RESUMEN
Sonography and computed tomography play complimentary roles in imaging lesions of the salivary glands. The present investigation was carried out to evaluate the role of high frequency ultrasonography [HF US] and computerized tomography [CT] in the diagnosis of salivary gland lesions .Moreover, the diagnosis was confirmed by histopathological examination. Fourteen patients suffeingr from swelling and/ or pain of one of the major salivary gland were referred from the out patient dental clinic in Alzhraa hospital. Clinical and radiological examinations. HF US andCT were carried out for all patients and it seems that the two techniques are equally effective. Therefore, HF US can replace CT, as it is non-invasive technique and less expensive. Doppler US gives more information about intra and prelesional vascularaization and soft tissue component surrounding the blood vessels
RESUMEN
Bilateral temporomandibular joint TMJ ankylosis during the active growth period presents with a conglomerate of clinical features namely severe micrognathia, inability to open the mouth and upper airway obstruction. Early treatment is recommended to avoid the secondary affection of the maxilla and midface. Six patients with bilateral TMJ ankylosis were included in this study. They were divided equally into two groups. The standard treatment was followed in group I which consisted of the release of ankylosis as a primary procedure. After an appropriate period of physiotherapy, mandibular osteotomy with iliac bone grafts and advancement genioplasty was performed in the mandible and Le Fort I osteotomy in the maxilla to correct maxillary canting. As for the cases in group II, mandibular advancement by means of distraction osteogenesis were carried out first by means of two extraoral multi-guide distractors fixed bilaterally to the mandible followed by the release of ankylosis. Evaluation included clinical examination, photography and radiographic analysis [orthopantomogram, lateral and posteroanterior cephalometry]. The distraction gap was assessed by means of ultrasonography and ultrasonometry. Dexa was used in one case. The advantages of both procedures are discussed
RESUMEN
The accuracy of diagnostic modalities that are currently used to evaluate TMJ disorders is equivocal. Magnetic resonance imaging MRI is the gold standard for disc position identification purposes. However, its availability and cost-effectiveness may be problematic. Ultrasonography US is widely available and cost effective. The purpose of the present study is to determine the efficacy of MRI with emphasis oil coronal sections as well as US in the diagnosis of TMJ derangement
Material and Methods: Twenty patients with a recent history of TMJ locking in one or both joints were the subject of this study. Clinical examination was carried out prior to MRI and US
Conclusion: Our data support reports in the literature that routine use of coronal sections together with sagittal sections during MR imaging is extremely advantageous. We recommend the use of US as an adjunct to other diagnostic modalities for TMJ imaging