نتایج جستجو برای: malacoplakia of bone
تعداد نتایج: 21198265 فیلتر نتایج به سال:
Background and purpose: Bone changes are secondary to chronic anemia, hypertrophy, enlargement of skull and also due to therapeutic agents such as desferal. Ât present in developed counties there is reduction of bone deformity as a result of proper treatment and management of the disease. The present study has been conducted in order to evaluate the type and severity of bone changes in thalas...
background: in several conditions we have face cranial bone defects. reconstruction of these defects remains one of the most challenging problems encountered by craniofacial surgeons. objective: to evaluate bone repair in cranial bone defects by use of an implant made of octacalcium phosphate in combination with bone matrix gelatin (ocp/bmg). methods: we used 40, 5–6-week-old male sprague-d...
Background and Purpose: Autograft is the best bone graft substitute, however, it has some limitations, so allograft with synthetic or natural materials has been advised to use for bone graft. In this study, Iranian Caspian seashell was used as a biocompatible natural material for radiological evaluation. lodgment of seashell in drilled defects of femur was compared in the treatment group (rab...
Various biological bone g rafts have been used for osteogenes i s , osteoconduction and even osteoinduction, but due to systemic influences and local factors, the outcome of successful incorporation of a bone graft has not been satisfactory. This study was therefore conducted on 15 clinically healthy adult dogs between 1 to 3 years of age weighing 20 to 30 kg to evaluate the effect of bo...
Objective(s): BONENAVI, a computer-aided diagnostic system, is used in bone scintigraphy. This system provides the artificial neural network (ANN) and bone scan index (BSI) values. ANN is associated with the possibility of bone metastasis, while BSI is related to the amount of bone metastasis. The degree of uptake on bone scintigraphy can be affected by the type of bone metastasis. Therefore, t...
The purpose of this paper was modeling and mechanical analysis of the biodegradable biphasic calcium phosphate/silk (BCP/Silk) laminated composite bone plate for fractured tibia healing; to this aim,ABAQUS 6.13 was employed for modeling and mechanical analysis. First, the tibia bone was considered based on the anthropometric measurements of an average person as a two-layer cylinder; the inner p...
objective(s): bonenavi, a computer-aided diagnostic system, is used in bone scintigraphy. this system provides the artificial neural network (ann) and bone scan index (bsi) values. ann is associated with the possibility of bone metastasis, while bsi is related to the amount of bone metastasis. the degree of uptake on bone scintigraphy can be affected by the type of bone metastasis. therefore, t...
Introduction: Dental abscesses and periodontal disease can be regarded as the common causes of odontogenic sinusitis. Apical periodontitis, periodontal disease, implant treatment and teeth extraction lead to the increase risk of maxillary sinus mucositis. The maxillary sinuses are usually well visualized on panoramic images. Therefore, this study aimed to explore the association between mucosal...
The primary carcinoma may secondarily invade bone tissue through direct extensions, blood circulation or lymphatic transportation particulary when it is arising from breast, prostate, kidney, thyroid and lung. Metastatics tumors of bone are more common than primary tumor of bone. The most common tumor, which metastasizes into bone, is the breast adenocarcinoma. Some metastatic tumors of bone in...
Background and purpose: Closure of the alveolar cleft using bone grafts is very important in patients with alveolar cleft. Adjunct use of platelet rich fibrin (PRF) with bone graft enhances the bone volume. The aim of the present study was to evaluate the efficacy of grafting by allografts with PRF in stability of bone volume following alveolar cleft grafting using radiographic scales. Mater...
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