Abstract This study aimed to assess the relationship between Schneiderian membrane thickening and periapical pathology in a retrospective analysis of Cone Beam Computed Tomography (CBCT) images. For this, 147 CBCT scans containing 258 sinuses and 1,181 teeth were assessed. Discontinuation of the lamina dura, widening of the periodontal ligament space, apical periodontitis (AP), and partly demineralized maxillary sinus floor associated with AP were considered periapical pathology. Maxillary sinus mucosal thickening (MSMT) was classified as odontogenic or non-odontogenic. An irregular band with a focal tooth associated thickening and local thickening related to a root were considered odontogenic types of MSMT. The relation between the imaging features of periapical pathology and the type and thickness of MSMT was determined by logistic regression and linear mixed model, respectively. In addition, linear regression and Mann Whitney test evaluated the relation and demineralization of the AP lesion towards the sinus floor (p≤0.05). The odds of having an odontogenic type of MSMT were significantly higher when a periapical pathology was present in the maxillary sinus. Eighty-two percent of AP partly demineralized towards the sinus floor were associated with an odontogenic MSMT. Both AP lesions partly demineralized towards the sinus floor and, with increased diameter, led to increased MSMT. In conclusion, there is an 82% risk of having an odontogenic type of MSMT with the presence of AP partly demineralized towards the sinus floor. More thickening of the maxillary sinus mucosa is seen with larger AP lesions and partial demineralization of the sinus floor. (CBCT images this 14 25 1181 1 181 1,18 assessed dura space AP, , (AP) (MSMT nonodontogenic. nonodontogenic non odontogenic. non-odontogenic model respectively addition p≤0.05. p005 p p≤0.05 . 0 05 (p≤0.05) Eightytwo Eighty two diameter conclusion 82 2 118 18 1,1 (AP p00 p≤0.0 (p≤0.05 8 11 1, p0 p≤0. (p≤0.0 p≤0 (p≤0. p≤ (p≤0 (p≤ (p

Resumo O objetivo deste estudo foi avaliar a relação entre o espessamento da membrana Schneideriana e periapicopatia em uma análise retrospectiva de imagens de Tomografia Computadorizada de Feixe Cônico (TCFC). Para isso, foram avaliadas 147 imagens de TCFC, contendo 258 seios maxilares e 1.181 dentes. A descontinuação da lâmina dura, o aumento do espaço do ligamento periodontal, a periodontite apical (PA) e o assoalho do seio maxilar parcialmente desmineralizado associado à PA foram considerados sinais de periapicopatia. O espessamento da mucosa do seio maxilar foi classificado como odontogênico ou não-odontogênico. Uma faixa irregular com um dente focal associado ao espessamento e espessamento local em relação a uma raiz foram considerados como tipos odontogênicos de espessamento da mucosa do seio maxilar. A relação entre a periapicopatia e o tipo de espessamento da mucosa do seio maxilar foi determinada (p≤0.05). A probabilidade de se ter um tipo odontogênico de espessamento da mucosa do seio maxilar foram significativamente maiores quando uma periapicopatia estava presente no seio maxilar. Oitenta e dois por cento da PA parcialmente desmineralizada em direção ao assoalho do seio estavam associados a um espessamento odontogênico da mucosa do seio maxilar. Ambas as lesões de PA parcialmente desmineralizadas em direção ao assoalho do seio e com aumento do diâmetro levaram a um aumento do espessamento da mucosa do seio maxilar. Em conclusão, com a presença de periapicopatia, há um risco maior de ter um tipo odontogênico de espessamento da mucosa do seio maxilar. Um espessamento maior da mucosa do seio maxilar é observado com lesões de PA maiores e desmineralização parcial do assoalho do seio maxilar. TCFC. TCFC . (TCFC) isso 14 25 1181 1 181 1.18 dentes dura periodontal (PA nãoodontogênico. nãoodontogênico não odontogênico. não-odontogênico p≤0.05. p005 p p≤0.05 0 05 (p≤0.05) conclusão (TCFC 2 118 18 1.1 p00 p≤0.0 (p≤0.05 11 1. p0 p≤0. (p≤0.0 p≤0 (p≤0. p≤ (p≤0 (p≤ (p

Objective Analyze the influence of sarcopenia in bone health of elderly men. Subjects and methods This cross-sectional study evaluated 198 men aged over 60 years. Body composition was measured by dual energy X-ray absorptiometry. The BMD was measured at the femoral neck, total hip, lumbar spine and 33% radius. The diagnosis of abnormal BMD was defined for men who presented densitometric diagnosis of osteopenia or osteoporosis defined by T-score of femoral neck, total hip and lumbar spine. The pre-sarcopenia and sarcopenia were defined according to the European Working Group on Sarcopenia in Older People. Results The group diagnosed with normal BMD, compared to the group of abnormal BMD, have significantly higher body weight, body mass index, grip strength, lean mass, fat mass, and relative appendicular skeletal muscle mass (RASM). However, after multiple linear regression analysis, we found that only the RASM, lean mass, and handgrip strength in the dominant hand influenced the variability of the BMD after adjustment for age and weight. Regression analyzes showed a positive association between greater appendicular lean mass and a smaller number of elderly patients with abnormal BMD diagnostic. The regression analyzes showed that elderly men diagnosed with pre-sarcopenia and sarcopenia had more abnormal BMD than non-sarcopenic elderly men. Conclusion We concluded that pre-sarcopenia and sarcopenia were associated with abnormal BMD. The lean mass, compared to fat mass, has a greater positive influence on the BMD of elderly men. This result suggests the importance of the increase in lean mass for the bone health of elderly men. Arch Endocrinol Metab. 2015;59(1):59-65

OBJETIVOS: Comparar a ultrassonometria do calcâneo com a densitometria óssea na avaliação de fraturas vertebrais morfométricas em homens acima de 60 anos. SUJEITOS E MÉTODOS: Foram analisados 96 homens com mais de 60 anos por meio de densitometria óssea da coluna, fêmur e rádio, radiografia lateral da coluna torácica e lombar e ultrassonometria do calcâneo. RESULTADOS: Cinquenta e um por cento dos homens apresentaram osteoporose e fraturas vertebrais. Foi observada correlação entre índice de stiffness e T-score da ultrassonometria e as densidades minerais ósseas (DMO) de todos os sítios. Quanto à presença de fraturas, identificou-se correlação com a DMO do rádio ultradistal e 33%. Por meio da curva ROC, observou-se acurácia da DMO do rádio UD na detecção de fraturas vertebrais. CONCLUSÕES: Nosso estudo mostrou correlação entre a ultrassonometria e a densitometria no diagnóstico de osteoporose em homens acima dos 60 anos. Também se identificou correlação entre fratura vertebral morfométrica e a DMO do rádio.

OBJECTIVES: To compare calcaneal ultrasonometry and bone densitometry in the evaluation of morphometric vertebral fractures in men over 60 years of age. SUBJECTS AND METHODS: We studied 96 men over 60 years of age by means of bone densitometry of the spine, femur and radius, lateral radiograph of the thoracic and lumbar spine, and calcaneal ultrasonometry. RESULTS: Fifty-one percent of men had osteoporosis and vertebral fractures. Correlation was found between ultrasonometry stiffness index, T-score and bone mineral density of the spine, femur and radius (p < 0.01). Regarding the presence of fractures, there was a correlation only with BMD of the ultradistal radius (UD) and radius 33%. ROC curve showed accuracy only of UD radius BMD in detecting vertebral fractures. CONCLUSIONS: Our study showed a correlation between osteoporosis diagnosis by ultrasonometry and densitometry in men over 60 years. It also showed a correlation between morphometric vertebral fracture and bone mineral density of the forearm.

The aim of this study was to compare clinical staging and magnetic resonance imaging (MRI) staging for oral cancer, and to assess inter-observer agreement between oral and medical radiologists. A total of 10 patients diagnosed with oral cancer were assessed before treatment. A head and neck surgeon performed clinical TNM staging. Two medical radiologists and two oral radiologists performed a new staging assessment by interpreting MRI scans, without prior knowledge of the clinical staging. They evaluated the extent of the primary tumor (T), metastasis to regional lymph nodes (N) and grouping by stages. The data were analyzed using the Kappa Index. There was significant agreement (p < 0.05) between the clinical and MRI staging assessments made by one oral radiologist for N stage, and between those made by one medical radiologist for the T and N stages and for the grouping by stages. In the MRI assessment, there was significant agreement among all four observers for both T stage and grouping by stages. For the N stage, there was no significant agreement between one oral radiologist and one medical radiologist or between both medical radiologists. There was significant agreement among the remaining radiologists. There was no agreement between the clinical and MRI staging. These results indicate the importance of using MRI for the diagnosis of oral cancer. Training initiatives and calibration of medical and oral radiologists should be promoted to provide an improved multidisciplinary approach to oral cancer.

A osteoporose é considerada um problema de saúde pública pela Organização Mundial de Saúde (OMS). A identificação de indivíduos com baixa densidade mineral óssea e alto risco para fratura associada à osteoporose e o estabelecimento de estratégias específicas de prevenção de fraturas são o alicerce de qualquer programa preventivo de osteoporose. O passo seguinte a esse reconhecimento seria o encaminhamento destes indivíduos para realização de densitometria óssea, exame considerado padrão-ouro para o diagnóstico da doença. No entanto, o custo e a falta de acesso da população ao exame são fatores que dificultam a utilização da densitometria como método de rastreamento populacional para a osteoporose. A radiografia panorâmica é importante na rotina de pacientes idosos, particularmente antes da colocação de próteses totais e implantes em edêntulos. Existem medidas qualitativas e quantitativas realizadas nas radiografias panorâmicas, denominadas índices radiomorfométricos, que podem ser capazes de identificar mulheres na pós-menopausa com indicação de realização de densitometria óssea. O objetivo principal deste artigo é discutir a importância da radiografia panorâmica como ferramenta auxiliar no diagnóstico da osteoporose e de baixa densidade mineral óssea.

Osteoporosis is considered as a public health problem by World Health Organization. The identification of subjects at risk of fractures and with low bone mineral density is the basis of any preventive osteoporosis program. Then, high risk individuals should be referred for dual X-ray absorptiometry (DXA). DXA is considered the gold standard of bone mineral density assessment. Nevertheless, bone densitometry has a limited availability for routine use in population screening. Panoramic radiography is conducted routinely in elderly populations, especially for edentulous patients before treating with complete denture or implants. Some panoramic radiographic measurements, also known as panoramic radiomorphometric indices, may identify postmenopausal women that should perform bone densitometry. The main purpose of this paper is to discuss the importance of panoramic radiography as an auxiliary tool in the diagnosis of osteoporosis and low bone mineral density.