نتایج جستجو برای: bone defect

تعداد نتایج: 392139  

ژورنال: مجله دندانپزشکی 2005
سارانی, شیر احمد, سرگزی, غلامحسین, سبحانی, عبدالله , سبحانی, علیقلی , سرگلزائی, فریدون , نیک‌نفس, بهروز ,

Statement of Problem: Several methods are used to enhance bone repair and new bone formation, and bone matrix gelatin (BMG) is recently introduced. Purpose: The purpose of this histologic and histomorphometric study was to assess the osteogenic potential and the quantity of new trabecular bone formation after implantation of OCP and BMG alone and in combination into the cranial defects in rat. ...

رضایی, علی, علیمحمدی, آرمین, موسوی, غفور, مهاجری, داریوش ,

  Background : Rebuilding and renovation of lost bone whether because of physiologic or pathologic factors was one of the surgeons’ motivations from the past. Statins are commonly prescribed cholesterol-lowering drugs however, it has recently been shown that they also have the beneficial side effect of enhancing bone matrix formation. As a result, this study evaluates the possible osteogenic ef...

2015
Philipp S. Lienemann Stéphanie Metzger Anna-Sofia Kiveliö Alain Blanc Panagiota Papageorgiou Alberto Astolfo Bernd R. Pinzer Paolo Cinelli Franz E. Weber Roger Schibli Martin Béhé Martin Ehrbar

In the Results section under subheading 'Longitudinal in vivo assessment of biomaterial-induced bone formation' " Over the following 8 weeks the plural stayed closed. " should read: " Over the following 8 weeks the defects stayed closed ". Under subheading 'Temporal and spatial in vivo assessment of hydroxyapatite deposition during bone defect regeneration – anterior-posterior axis. ' " Thereaf...

2016
Patricia L Carlisle Teja Guda David T Silliman Wen Lien Robert G Hale Pamela R Brown Baer

OBJECTIVES To validate a critical-size mandibular bone defect model in miniature pigs. MATERIALS AND METHODS Bilateral notch defects were produced in the mandible of dentally mature miniature pigs. The right mandibular defect remained untreated while the left defect received an autograft. Bone healing was evaluated by computed tomography (CT) at 4 and 16 weeks, and by micro-CT and non-decalci...

Journal: :Archives of oral biology 2003
Jurjen Schortinghuis Jan L Ruben Henny J A Meijer Antonius L J J Bronckers Gerry M Raghoebar Boudewijn Stegenga

Microradiography has been evaluated to measure bone healing into a 5.0mm outer diameter mandibular defect in the rat. This method provides high-resolution radiographs of the defects that can be used for an accurate measurement of bone defect healing. In 12 rats, the defect widths of 42-day-old mandibular defects have been measured both using microradiographs and histological sections. The defec...

2017
Veronika Hruschka Stefan Tangl Yulia Ryabenkova Patrick Heimel Dirk Barnewitz Günter Möbus Claudia Keibl James Ferguson Paulo Quadros Cheryl Miller Rebecca Goodchild Wayne Austin Heinz Redl Thomas Nau

Nanocrystalline hydroxyapatite (HA) has good biocompatibility and the potential to support bone formation. It represents a promising alternative to autologous bone grafting, which is considered the current gold standard for the treatment of low weight bearing bone defects. The purpose of this study was to compare three bone substitute pastes of different HA content and particle size with autolo...

2012
Ya-Fei Feng Lin Wang Xiang Li Zhen-Sheng Ma Yang Zhang Zhi-Yong Zhang Wei Lei

BACKGROUND Although three-dimensional (3D) β-tricalcium phosphate (β-TCP) scaffolds serve as promising bone graft substitutes for the segmental bone defect treatment, no consensus has been achieved regarding their optimal 3D architecture. METHODS In this study, we has systematically compared four types of β-TCP bone graft substitutes with different 3D architectures, including two types of por...

Journal: :Journal of periodontology 2003
Kenneth A Conner Robert Sabatini Brian L Mealey Vincent J Takacs Michael P Mills David L Cochran

BACKGROUND Endosseous dental implants with rough surfaces have been designed to improve early healing, especially in areas of poor bone or insufficient bone quantity. The aim of this study was to histomorphometrically assess the bone-to-implant contact on 3 different rough-surfaced implants following guided bone regeneration. METHODS Mandibular premolars and first molars were extracted in 12 ...

Journal: :dental research journal 0
parviz deyhimi soheila darisavi saeideh khalesi

stafne bone cavities (sbcs) are uncommon well‑demarcated defects of the mandible, which often occur in the posterior portion of the jaw bone and are usually asymptomatic. furthermore, sbc is found in men aged 50–70‑year‑old. anterior mandibular variants of sbc are very rare. this article describes a case of anterior sbc in a 45‑year‑old man that resembled endodontic periapical lesions. upon his...

Journal: :international journal of pediatrics 0
sima tavakolinejad msc, phd student, department of anatomy and cell biology, faculty of medicine, mashhad university medical sciences, mashhad, iran. daryoush hamidi alamdari phd, assistant professor, stem cell and regenerative medicine research group, department of clinical biochemistry, faculty of medicine, mashhad university of medical sciences, mashhad, iran. saeedeh khajehahmadi dds, assistant professor of oral and maxillofacial pathology, oral and maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. alireza ebrahimzadeh bidskan phd, associate professor, department of anatomy and cell biology, faculty of medicine, mashhad university medical sciences, mashhad, iran.

background cleft palate (cp) is a common congenital defect. it makes serious difficulties for cleft-affected children. the gold standard of care is autogenous bone grafting which may cause additional problems in donor site along with disappointing results. tissue engineering is a promising solution for a widespread range of defects and disorders. it is reasonable to utilize this novel technolog...

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