desmoplastic fibroma (df) is a rare and locally aggressive intraosseous tumor with unknown etiology. the mandible is the common site of involvement in the maxillofacial region. however, it is believed that df can arise in any bone of the body. a wide age distribution has been reported for df occurrence, extending from birth to the sixth decade of life, with a peak incidence at 10 to 19 years of...

objectives: this study sought to assess the relation of mandibular cortical index (mci) with age, gender and gonial angle size in an iranian adult population using digital panoramic radiography. methods: we evaluated 370 digital panoramic radiographs of patients and divided them into five 10-year age groups. each radiograph was assigned to low (≤120°) or high (≥125°) angle groups in terms of th...

the osteology of the suspensorial and opercular series in representatives of 49 genera and 41 families of eurypterygian fishes were studied. the suspensorium consists of the palatine, ectopterygoid, endopterygoid, metapterygoid, quadrate, symplectic, and hyomandibular bones. the hyomandibular foramen is present at the base of the anterior head. the opercular series consists of the preopercle, s...

background: ankylosing spondylitis (as) is an inflammatory rheumatic disease that leads to a progressive ankylosis of vertebras and ossification of paravertebral ligaments. bone loss and osteoporosis are amongst the important complications of as, treatment of which is a challenging issue. objectives: this study aimed to clarify the effect of alendronate on the prevention of bone loss in patient...

background and aims. autogenous bone graft is commonly used for reconstruction of bone defects in routine surgical procedures. the complexity of producing bone grafts and their application has lead to the use of human bone matrix gelatin (hbmg). the present study was conducted to compare the efficacy of hbmg and autograft on the reconstruction of bone defects in rats. materials and methods. in ...

introduction: gold standard for alveolar cleft bone grafting is autogenous bone. advantage of adding the growth factors to the bone is established, so adding prf to the autogenous bone may have beneficial effects. methods:  platelet-rich plasma admixed with autogenous bone and as a biologic membrane over the bone grafted alveolar cleft was used. results:  autogenous bone in all (four cases) was...

this study was conducted to investigate the correlation between lipid-lowering and bone-protective effects of eicosapentaenoic acid on steroid-induced bonechanges in rats. twenty-one male 10-week-old wistar rats were divided into 3 groups (n = 7 each) and treated with 0.9% nacl sc (group 1) or methylprednisolone 7 mg/kg sc once a week (group 2) or methylprednisolone 7 mg/kg sc once a week + eic...

co-infection of tuberculosis and leishmaniasis has been reported previously in patients with altered immune response due to primary or secondary immunodeficiency. these intracellular pathogens have a unique interaction in the host immune response and their development depends on impaired cell-mediated immunity. a case of chronic non-healing cutaneous ulcer with chronic fistulating soft-tissue m...