نتایج جستجو برای: bone tissue
تعداد نتایج: 1125345 فیلتر نتایج به سال:
ewing's sarcoma is a relatively common malignant bone tumor that typically occurs in long bone diaphyses of adolescents and young adults of 10-30 years old. often times, all ewing's sarcoma of bone have radiographic abnormalities. diagnosis is usually delayed and can be misdiagnosed as osteomyelitis. bone to bone metastasis occurs, but soft tissue retro bulbar metastasis is rare. this...
In recent years, nanoceramics have been used in scaffolds to emulate the nanocomposite with a three-dimensional structure of natural bone tissue. In this regard, polycaprolactone biopolymer is widely used as a scaffold in bone tissue engineering. The goal of this research is to produce porous scaffolds of polycaprolactone - zeolite biocomposite with suitable mechanical, bioactive and biological...
introduction: the use of lasers for treatment has become a common phenomenon in the medical field. currently, numerous laser systems are available for dental use. the use of lasers for periodontal treatment becomes more complicated because the periodontium consists of both hard and soft tissues. methods: related articles were gathered and selected carefully and reviewed. among the many lasers a...
Abstract:Some types of glass and glass ceramics have a great potential for making bone tissue engineering scaffolds, drug carrier and bone cements as they can bond to host bone, stimulate bone cells toward osteogenesis, and resorb at the same time as the bone is repaired. Calcium phosphate glass ceramics have very attractive properties that allow them to use in bone tissue engineering. Calcium ...
Background and purpose: Auto-transplantation is the best bone graft substitute, but there are some limitations. Therefore, other methods using synthetic or natural materials are recommended. Propolis is a resinous natural product derived from plant exudates collected by honeybees. It has been extensively used in folk medicine because of its biological and pharmacological activities. The present...
Comparative study of bone and lamellar bone formation in Peripheral Giant Cell Granuloma and Peripheral Ossifying Fibroma Dr. SH. Ghasemi Moridani* - Dr. H. Mahmoodi Chenari* *-Assistant Professor of Oral and Maxillofacial Pathology Dept.-Faculty of Dentistry-Guilan University of Medical Sciences. **- Dentist. Background and Aim: Peripheral Giant Cell Granuloma (PGCG) and peripheral ossifying f...
background: it has been stated that the bone allografts from different tissue banks may lead to various amount of bone induction, so the aim of this study was to evaluate bone regeneration of three demineralized allografts both histologically and histomorphometrically in rabbits calvaria bone defects. materials and methods: in this double-blind randomized experimental animal study, 32 critical ...
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...
Today, the treatment of patellar luxations using current techniques has become a very common procedureas part of the surgical treatment. Nevertheless, there are some doubts about such procedures in restraining the patella in lower grade cases. The purpose of the present retrospective clinical study was to determine theefficacy of the soft tissue and bone reconstructive procedures used for vario...
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