نتایج جستجو برای: bovine bone

تعداد نتایج: 375779  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مهندسی موادو متالورژی 1393
فائزه تاجیک, حمیرا ابراهیم زاده, امید میرزایی,

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

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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ژورنال: مجله دندانپزشکی 2010
آشوری, مهدی, آقازاده, سمانه, خرازی‌فرد, محمد جواد, عظیمی لیسار, حمیدرضا,

Background and Aims: The present study was designed for evaluation of bovine demineralized bone matrix (DBM) in healing process of bone defects and comparison of bovine DBM (xenograft) and human DBM (allograft) which is used clinically. Materials and Methods: Seven male white New Zealand rabbits were used in this study. The incision was made directly over the midsagital suture of the parietal b...

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Journal: :journal of dentistry, tehran university of medical sciences 0
y. soleymani shayesteh a. khorsand p. motahhary m. dehghan ma. shafiee ardestani

statement of problem: reconstruction methods are an essential prerequisite for functional rehabilitation of the stomatognathic system. platelet-rich plasma (prp) offers a new and potentially useful adjunct to bone substitute materials (e.g. xenografts) in oral and maxillofacial bone and implant reconstructive surgery. purpose: an animal study was carried out to investigate the influence of prp ...

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Journal: :journal of dentistry, tehran university of medical sciences 0
ar rokn dental implant research center, school of dentistry, tehran university of medical sciences, tehran, iran. n moslemi b eslami h khandagh abadi m paknejad

both anorganic bovine bone (abb) and β-tricalcium phosphate (β-tcp) are used in clinical practice as bone substitute materials, but there is limited data comparing these two materials in standardized defects. the aim of this study was to histologically evaluate the effectiveness of abb and β-tcp in the healing of experimentally induced bone defects.eighteen bone defects were created on the calv...

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Journal: :iranian endodontic journal 0
arash khojasteh assistant professor, director of basic science research, department of oral and maxillofacial surgery, dental research center, faculty of dentistry, shahid beheshti university of medical science, tehran, iran mohammad hossein ghahremani associate professor, department of pharmacology and toxicology, faculty of pharmacy, tehran university of medical sciences, tehran, iran seyed nasser ostad professor, department of pharmacology and toxicology, faculty of pharmacy, tehran university of medical sciences, tehran, iran mohammad eslami professor, department of oral and maxillofacial pathology, tehran university of medical sciences, tehran, iran pourya motahhary golnaz morad dental research center, shahid beheshti university of medical science

introduction : deproteinized bovine bone mineral (bio-oss) is a xenogenic bone substitute, widely used in maxillofacial bone regeneration. the aim of this in vitro study was to investigate its influence on the growth behavior of human osteosarcoma cell line, saos-2 culture, and compare it with the physiologic dose of dexamethasone, an inductive factor for osteoblasts. materials and methods: hum...

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Journal: :journal of dentistry, tehran university of medical sciences 0
a khorsand associate professor, department of periodontics, school of dentistry, tehran university of medical sciences, tehran, iran. a a r rasouli ghahroudi p motahhari m rezaei rad y soleimani shayesteh

the objective of this study was to evaluate the effect of accell connexus(®) on the quality and rate of healing in experimental defects of rabbit calvarium compared to bio-oss®.twelve 2.5-3.5 kg weighing new zealand white rabbits were used. three defects (3×6 mm) were created in the cranium of the animals subsequently filled with accell connexus(®), bio-oss® or served as controls. the animals w...

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Journal: :iranian red crescent medical journal 0
ferhat ayranci department of oral maxillofacial surgery, faculty of dentistry, ordu university, ordu, turkey; department of oral maxillofacial surgery, faculty of dentistry, ordu university, 52200, ordu, turkey. tel: +90-4522125005, fax: +90-4522121289 metin gungormus department of oral and maxillofacial surgery, faculty of dentistry, gaziantep university, gaziantep, turkey mehmet melih omezli department of oral maxillofacial surgery, faculty of dentistry, ordu university, ordu, turkey betul gundogdu department of pathology, faculty of medicine, ataturk university, erzurum, turkey

conclusions alendronate may be considered a therapeutic option for improving the bone formation process and reducing resorption in different bone grafting procedures. further detailed studies should focus on dosage and time-dependent effects of alendronate on bone remodeling. results at 6 weeks, the bone area was significantly larger in the xenograft-alendronate group (33.0% ± 5.0%) than in the...

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Journal: The Archives of Bone and Joint Surgery 2015
Amir Mobini, Farzam Farahmand, Hasan Kaseb, Kaveh Bashti, Mohammad Akbar, Mohammad Naghi Tahmasebi,

  Background: Ligament reconstruction is a common procedure in orthopedic surgery. Although several popular techniques are currently in use, new methods are proposed for secure fixation of the tendon graft into the bone tunnel. Purposes: We sought to introduce our new technique of Bashti bone plug for fixation of soft tissue graft in anterior cruciate ligament (ACL) reconstruction and to compar...

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2017
Ferdiansyah Mahyudin Dwikora Novembri Utomo Heri Suroto Tri Wahyu Martanto Mouli Edward Imelda Lumban Gaol

Autogenous bone graft is gold standard in treating bone defects, but it might have difficulty in corporation and rejection reaction. This study is to compare the effectiveness among freeze-dried xenograft, freeze-dried allograft, hydroxyapatite xenograft, and demineralized bone matrix xenograft as bone graft to fill bone defect in femoral diaphysis of white rabbit. Thirty male New Zealand white...

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