نتایج جستجو برای: bone regeneration

تعداد نتایج: 356551  

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1394
فاطمه یازرلو, مجیدرضا مختاری, مجید عشق پور,

جایگزینی دندان های از دست رفته به وسیله ایمپلنت دندانی به فراوانی انجام میشود. برای اینکه ایمپلنت به طور بهینه جایگزین شود باید در استخوان ایده ال جایگذاری شود که البته این نقایص قابل ترمیم هستند، یکی از این روشها guided bone regeneration است.

Journal: :avicenna journal of dental research 0
sara soheilifar department of periodontology, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) sepideh soheilifar department of orthodontics, shahid beheshti university of medical sciences, tehran, ir iran; sepideh soheilifar, department of orthodontics, shahid beheshti university of medical sciences, evin st., tehran, ir iran. tel: +98-9121944033سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) mohsen bidgoli department of periodontology, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) parviz torkzaban department of periodontology, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

context this article reviews the available evidence about the barrier membranes utilized in guided tissue regeneration process to prevent the migration of unfavorable cells to the wound area. evidence acquisition available evidence about membranes properties and their different uses were reviewed, and the results of clinical and animal studies and systematic reviews were gathered. results a lar...

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Journal: :journal of dentistry, tehran university of medical sciences 0
mojgan paknejad associate professor, dental research center dentistry research institute tehran university of medical sciences, department of periodontics,, faculty of dentistry, tehran university of medical sciences, tehran, iran. amir reza rokn professor, member of dental implant research center of tehran university of medical sciences, department of periodontics, faculty of dentistry, tehran university of medical sciences, tehran, iran. siamak yaghobee assistant professor, member of dental implant research center of tehran university of medical sciences, department of periodontics, faulty of dentistry, tehran university of medical sciences, tehran, iran. pantea moradinejad periodontist, department of periodontics, faculty of dentistry, mazandaran university of medical sciences, sari, iran. mohadeseh heidari assistant professor of periodontics, department of periodontics, faculty of dentistry, mazandaran university of medical sciences, sari, iran. ali mehrfard student, islamic azad university.

the purpose of this study was to evaluate the efficacy of two types of bone substitutes, bio-oss and nuoss, for repair of bone defects.this study was performed on the calvaria of 14 new zealand rabbits. the 6mm critical size defect (csd) models of bone regeneration were used. three csds were created in each surgical site. the first defect was filled with nuoss, the second one with bio-oss and t...

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Journal: :journal of dentistry, tehran university of medical sciences 0
m. paknejad associate professor, department of periodontology, school of dentistry, tehran university of medical ar. rokn associate professor, dental research center, tehran university of medical sciences, tehran, iran b. eslami associate professor, department of oral and maxillofacial pathology, dental school of shahid behesht r. afzalifar dentist, dental research center, tehran university of medical sciences, tehran, iran a. safiri periodontist, private practice

objective: the aim of present study was to evaluate the quality, density and thickness of newly formed bone in experimental defects treated with combi-pack®, bio-oss® and biostite®. materials and methods: eight new zealand white rabbits were included in this randomized,blinded study. four equal 3×6 mm bone defects were created on the frontal and parietal bones of each animal and three were imme...

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Journal: :journal of dentistry, tehran university of medical sciences 0
a. khodayari dmd, ms. associate professor; oral and maxillofacial surgery, program director, department of oral a a. khojasteh dmd, ms. assistant professor; oral and maxillofacial surgery, department of oral and maxillofacial s mt. kiani dmd. chief resident; oral and maxillofacial surgery, department of oral and maxillofacial surgery, s a. nayebi dmd. senior resident; oral and maxillofacial surgery, department of oral and maxillofacial surgery, l. mehrdad dmd.faculty member, department of oral and maxillofacial pathology, tehran university of medical sci m. vahdatinia md, resident; general medical pathology, babol university of medical sciences

mandibular defects may result from many conditions such as trauma, inflammatory diseases and tumors. there are rare cases reported in the literature that have demonstrated spontaneous bone regeneration after resection of the mandible. several factors such as age, preservation of the periosteum and genetics seem to influence spontaneous bone regeneration capacity in individuals. evaluation of th...

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Journal: :trauma monthly 0
kamal seyed foroutan department of plastic surgery, hazrat fatemeh hospital, iran university of medical sciences, tehran, ir iran; department of plastic surgery, hazrat fatemeh hospital, iran university of medical sciences, tehran, ir iran. tel: +98-2188890889 ali khodarahmi department of plastic surgery, bahonar hospital, kerman university of medical sciences, kerman, ir iran hootan alavi department of plastic surgery, hazrat fatemeh hospital, iran university of medical sciences, tehran, ir iran sepehr pedram veterinary faculty, hazrat fatemeh hospital, iran university of medical sciences, tehran, ir iran mohamad reza baghaban eslaminejad department of stem cells and developmental biology, cell science research center, royan institute for stem cell biology and technology, acecr, tehran, ir iran sima bordbar department of stem cells and developmental biology, cell science research center, royan institute for stem cell biology and technology, acecr, tehran, ir iran

conclusions the results of this study showed that the meticulous microsurgical nerve repair, which was performed using the vein tubulization induced significantly better sciatic nerve regeneration. however, the addition of bone marrow mesenchymal stem cell to vein conduit failed to promote any significant changes in regeneration outcome. results all animals tolerated the surgical procedures and...

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Journal: :journal of dentistry, tehran university of medical sciences 0
mojgan paknejad associtate professor, dental research center dentistry research institute, department of periodontics, school of dentistry, tehran university of medical sciences, tehran, iran ; dental implant research center, school of dentistry, tehran university of medical sciences, tehran, iran. amirreza rokn dental implant research center, school of dentistry, tehran university of medical sciences, tehran, iran ; professor, department of periodontoics, school of dentistry, tehran university of medical sciences, tehran, iran. nina rouzmeh assistant professor, department of periodontics, school of dentistry, qom university of medical sciences, qom, iran. mohadeseh heidari assistant professor, department of periodontics, school of dentistry, mazandaran university of medical sciences, mazandaran, iran. azadehzeinab titidej assistant professor, department of oral and maxillofacial pathology, school of dentistry, qazvin university of medical sciences, qazvin, iran. mohammad javad kharazifard statistical advisor, dental research center, tehran university of medical sciences, tehran, iran.

considering the importance of bone augmentation prior to implant placement in order to obtain adequate bone quality and quantity, many studies have been conducted to evaluate different techniques and materials regarding new bone formation. in this study, we investigated the bone healing capacity of two different materials deproteinized bovine bone mineral (dbbm with the trade name of bio-oss) a...

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Journal: :journal of dentistry, tehran university of medical sciences 0
amir reza rokn abbas seyed shakeri shahroo etemad-moghadam mojgan alaeddini ahmad reza shamshiri rebecca manasheof

objectives: the aim of this study was to histologically compare the regenerative properties of two allografts manufactured by two iranian companies. materials and methods: in this study, four 8-mm defects were produced in the calvaria of 12 rabbits. in three defects, three types of allografts namely itb, cenobone and grafton were placed and one defect served as control. samples were prepared an...

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Journal: :journal of craniomaxillofacial research 0
maryam sohrabi craniomaxillofacial research center, tehran university of medical sciences, tehran, iran. ali hassani oral and maxillofacial surgery department ,school of dentistry, tehran azad medical university. abbas karimi craniomaxillofacial research center, tehran university of medical sciences department of oral and maxillofacial surgery, tehran university of medical sciences. mehrnoosh momeni craniomaxillofacial research center, tehran university of medical sciences, tehran, iran .oral and maxillofacial surgery department, school of dentistry, tehran university of medical sciences, tehran, iran. naghmeh bahrami oral and maxillofacial surgery department, school of dentistry, tehran university of medical sciences, tehran, iran. craniomaxillofacial research center, tehran university of medical sciences ,tehran, iran. iranian tissue bank & research center, tehran university of medical sciences, tehran, iran.

introduction : use of adipose-derived stem cells (adscs) is a suggested hypothesis to enhance the regeneration of bone defects. this technique is of particular interest since adscs are more easily accessible via a non-invasive harvesting technique compared to bone marrow stem cells (bmscs). this study sought to assess the efficacy of adsc implantation for regeneration of localized mandibular bo...

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ژورنال: مجله دندانپزشکی 2018
جباری, فرزانه, حصارکی, سعید, هوشمند, بهزاد,

The Guided Bone Regeneration (GBR) treatment concept advocates that regeneration of osseous defects is predictably attainable via the application of occlusive membranes, which mechanically exclude non-osteogenic cell populations from the surrounding soft tissues, thereby allowing osteogenic cell populations originating from the parent bone to inhabit the osseous wound. The use of membrane to ex...

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