bone mass loss is one of the commonest menopause symptoms, resulting from cessation of estrogen production. compounds which have estrogen – like biological activity similar to “isoflavones” present in plants especially soy, may reduce bone loss in postmenopausal women, because as they are similar in structure to estrogens. this study, therefore, was undertaken to assess the effect of soy protei...

This study aims to assess the biomechanical behavior of alveolar bone surrounding implants over protocol with metal, Polyether ether ketone (PEEK) and Zantex bars, in normal osteoporotic conditions. For simulation, geometric models mandibular arch were designed containing 5 two variables. The first variable is condition - osteoporotic-, second material used bars – PEEK Zantex. Simulation was pe...

introduction: the aim of this in vivo study was to determine the effect of demineralized bone matrix (dbm) on alveolar bone repair in type i diabetic rats. materials and methods: this study was carried out on 40 adult (8 weeks-old) albino rats with an average weight of 200-250 grams. the animals were divided into four groups (n=10) as follows: group 1 nondiabetic rats, group 2, 3 and 4 were dia...

osteosarcoma (os) is the eighth common cancer of childhood and its incidence is 4 cases in one million in children younger than 14. facial os incidence is estimated between 8 and 10% of os cases. the main etiology of os is unknown, but various predisposing factors are proposed such as radiation, radiotherapy, some benign bone diseases like paget’s disease or fibrous dysplasia. there is a 5-year...

AIMS/INTRODUCTION Previous studies have reported osteoporosis measured by dual-energy X-ray absorptiometry in younger patients with type 1 diabetes. Limitations of 2-D imaging, however, limit the precision of dual-energy X-ray absorptiometry for the measurement of bone mineral density and bone strength. MATERIALS AND METHODS Three-dimensional quantitative computed tomography was used to calcu...

We report the results of 79 patients (81 hips) who underwent impaction grafting at revision hip replacement using the Exeter femoral stem. Their mean age was 64 years (31 to 83). According to the Endoklinik classification, 20 hips had a type 2 bone defect, 40 had type 3, and 21 had type 4. The mean follow-up for unrevised stems was 10.4 years (5 to 17). There were 12 re-operations due to intra-...