RESUMO
This study was designed to investigate the effects of occlusal splints in the treatment of sagittal fractures of the mandibular condyle in children. From January 1995 to December 2011, 37 sagittal fractures of the mandibular condyle in 30 patients aged 4-8 years old were included in this study. All the patients were treated with 1-2mm occlusal splints in the molar region. The mouths of the patients were kept slightly open by the occlusal splints for 3-6 months, and we reviewed the clinical and radiological remodelling of the affected condyles after treatment. Excellent (n=20) and good (n=10) clinical outcomes were achieved with full radiological remodelling seen in 19 and partial remodelling in 11. Treatment with occlusal splints is effective in delivering good results and function with minimal morbidity in children with sagittal fractures of the condyle, while permitting ongoing remodelling and growth in the short term.
Assuntos
Côndilo Mandibular/lesões , Fraturas Mandibulares/terapia , Placas Oclusais , Remodelação Óssea/fisiologia , Cartilagem Articular/diagnóstico por imagem , Cartilagem Articular/patologia , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento Tridimensional/métodos , Masculino , Mandíbula/crescimento & desenvolvimento , Côndilo Mandibular/diagnóstico por imagem , Côndilo Mandibular/crescimento & desenvolvimento , Fraturas Mandibulares/diagnóstico por imagem , Desenho de Aparelho Ortodôntico , Radiografia Panorâmica/métodos , Amplitude de Movimento Articular/fisiologia , Disco da Articulação Temporomandibular/diagnóstico por imagem , Disco da Articulação Temporomandibular/patologia , Tomografia Computadorizada Espiral/métodos , Resultado do TratamentoRESUMO
OBJECTIVE: To investigate the manifestation of oral squamous cell carcinoma with metastatic lymph nodes in whole-body diffusion weighted imaging (WB-DWI) and its clinical significance. METHODS: Twenty-one cases of oral squamous cell carcinoma with metastatic lymph nodes were examined by WB-DWI, of which 19 were scanned with routine MRI, 9 cases examined by positron-emission tomography (PET). All cases were confirmed by pathology. MRI scan covered whole body and built whole body diffusion image after reconstruction with GE HDe 1.5T MRI scanner. RESULTS: There were 139 metastatic lymph nodes, 11 normal lymph nodes, and 21 inflammatory lymph nodes exhibited by WB-DWI in 21 cases. Metastatic lymph nodes showed higher signal and lower value of apparent diffusion coefficient (ADC). The mean ADC value of metastatic lymph nodes (0.78 +/- 0.07) was significantly lower than that of inflammatory (1.18 +/- 0.15) and normal nodes (1.78 +/- 0.16), and normal nodes showed even higher levels of ADC value. CONCLUSIONS: STIR-EPI-DWI is a new promising technique for differentiating normal, inflammatory, and metastatic lymph nodes and can provide more useful information on lymph node metastasis.