introduction: osteoporosis and periodontal diseases are both multifactorial and are mostly associated with aging. the aim of this study was to evaluate the relationship between osteoporosis and periodontal diseases. materials and methods: in this analytical/cross-sectional study, periodontal examinations were carried out on 98 women who had undergone bone mass densitometry. of these cases, cons...

density functional theory calculations were performed to investigate the interactions of nh3 molecules with tio2/mos2 nanocomposites in order to completely exploit the adsorption properties of these nanocomposites. given the need to further comprehend the behavior of the nh3 molecules oriented between the tio2 nanoparticle and mos2 monolayer, we have geometrically optimized the complex systems ...

in order to evaluate the possible correlation between the tree density and the human population density, the forested area in nav asalem district located in guilan province was selected. the descriptors of tree number and basal area per hectare as well as the stand density index were used to determine the tree density, which was conducted from a 2014 forest inventory including 62 cluster (558 p...

objective: in this study, the usefulness of panoramic mandibular index (pmi) on panoramic radiographs in diagnosis of osteoporosis was evaluated and its correlation with bone mineral density (bmd) of the neck of femur and spine was determined. materials and methods: in this cross-sectional study, 140 patients (all females) were categorized as either normal, osteopenic or osteoporotic according ...

conclusions abnormal dexa was highly prevalent among patients with cirrhosis. the risk of this finding was increased by lower vitamin d levels, advanced disease, and impaired renal function. objectives we aimed to investigate bone loss in patients with cirrhosis at different anatomical sites and key factors that might affect it. patients and methods in this cross-sectional study, 97 patients wi...

protection and the prevention of illegal departures national grape germplasm, as one of the most important assets of the country, requires identification of the commercial and native cultivars and registered them in the international centers. the present project was conducted in order to registration the most important grape cultivars of iran based on morphological and physiological traits in t...