نتایج جستجو برای: histomorphometric changes
تعداد نتایج: 873833 فیلتر نتایج به سال:
background: several grafting materials have been used for alveolar ridge augmentation. the literature lacks researches to compare cenobone to other grafting materials. the aim of this study was to compare cenobone/cenomembrane complex to bio-oss/bio-gide complex in lateral alveolar bone augmentation in terms of radiographic, histologic, and histomorphometric parameters. materials and methods: i...
PURPOSE To compare three sterilization methods (autoclave, gamma irradiation and ethylene oxide) over non demineralized lyophilized bone allografts. METHODS Bone allografts were implanted on paravertebral muscles of 21 rats. After 30 days animals were sacrificed and grafts underwent comparative analysis regarding histomorphometric and macroscopic parameters. RESULTS Allografts that underwen...
A radiographic and histomorphometric study was conducted on the influence of autologous plasma rich in growth factors (PRGF) upon bone healing in surgically created defects in rabbits. Radiographically, bone regeneration was significantly greater with the use of PRGF after one month (p = 0.005), though no differences were recorded after the second month. In the histomorphometric analysis one mo...
PURPOSE Surgery of irradiated tissue has an increased complication rate because of the development of hypovascular, hypocellular, and hypoxic tissue. This study was undertaken to perform histopathologic and histomorphometric analyses of irradiation tissue injury in bone and the surrounding soft tissues. MATERIAL AND METHODS The histopathologic findings of 40 human mandibular bones and the sur...
Bone specimens were obtained from four different sites in the ilium of necropsy cases using a Jamshidi 8G trephine needle. Undecalcified histological sections were prepared and two structural histomorphometric parameters were estimated. Estimates of the percentage of trabecular bone volume (%TBV) deviated systematically, with variation of the biopsy site around the usual location, increasing in...
Background and purpose: Diabetes causes adverse effects on the activity of reproductive system, including impaired spermatogenesis, decreased sperm count, testosterone serum, seminal fluid volume, and loss of sexual desire. The aim of this study was to evaluate the effect of E.cyparissias extract on tissue changes of prostate and vesicle seminal in diabetic rats. Materials and methods: Thirty ...
Background and purpose: Atrazine causes some biological effects including atresia in ovarian folicules. Essense and aqueous extract of Achillea milifolium and vitamin E are important due to prevention of atresia. Therefore, the effects of these substances were evaluated in ovarian tissue. Materials and Methods: 42 adult female rats were used. 1st and 2nd groups were received atrazine at rate...
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