نتایج جستجو برای: histomorphometrical

تعداد نتایج: 294  

Journal: :The open orthopaedics journal 2015
Thomas Jakobsen Søren Kold Jørgen Baas Kjeld Søballe Ole Rahbek

Early secure stability of an implant is important for long-term survival. We examined whether micromotion of implants consistently would induce bone resorption and formation of a fibrous membrane and thereby prevent osseointegration. One micromotion implant was inserted into one of the medial femoral condyles in ten sheep. The micromotion device consists of an anchor bearing a PMMA implant and ...

2017
AGHIL RAHMANI VALIOLLAH ARASH REZA GHORBANIPOUR SAYED MAHMOOD RABIEE SHIMA NAFARZADEH ALI BIJANI

Many orthodontists believe that the only way to maintain perfect alignment after treatment is some form of permanent retention. Considering the antibacterial properties of silver ions, this in vivo study aimed to investigate the effects of silver ion coating of orthodontic fixed retainers on gingival health in rabbits. In this experimental study 24 adult male New Zealand rabbits, weighing appro...

Journal: :BMC Musculoskeletal Disorders 2005
Anja C Waselau Daniel Nadler Jessika MV Müller Katalin Zlinszky Monika Hilbe Jörg A Auer Brigitte von Rechenberg

BACKGROUND Differences in overall performance of osteochondral photooxidized grafts were studied in accordance of their species origin and a new, more rigorous cleansing procedure using alcohol during preparation. METHODS Photooxidized mushroom-shaped grafts of bovine, ovine, human and equine origin were implanted in the femoral condyles of 32 sheep (condyles: n = 64). No viable chondrocytes ...

2016
Frédéric Chamieh Anne-Margaux Collignon Benjamin R. Coyac Julie Lesieur Sandy Ribes Jérémy Sadoine Annie Llorens Antonino Nicoletti Didier Letourneur Marie-Laure Colombier Showan N. Nazhat Philippe Bouchard Catherine Chaussain Gael Y. Rochefort

Therapies using mesenchymal stem cell (MSC) seeded scaffolds may be applicable to various fields of regenerative medicine, including craniomaxillofacial surgery. Plastic compression of collagen scaffolds seeded with MSC has been shown to enhance the osteogenic differentiation of MSC as it increases the collagen fibrillary density. The aim of the present study was to evaluate the osteogenic effe...

2009
Norbert Marwan Peter Saparin Jürgen Kurths

For the assessment of bone stage (e.g. regarding different osteoporotic stages), usually the bone mineral density (BMD) is measured. However, this measurement does not contain any information about the structures inside the bone. Recent work emphasized the importance of analysing the structural changes of trabecular bone (Guo & Kim, 2002; Silva & Gibson, 1997). Different approaches for the stud...

2016
Boyuan Yang Yi Zuo Qin Zou Limei Li Jidong Li Yi Man Yubao Li

We incorporated ultrafine polymer fibers into calcium phosphate cement (CPC) to improve the resorption rate of CPC with fiber degradation. Different weight percentages of electrospun poly(ε-caprolactone) fibers (0%, 3%, and 7%, named as ultrafine fiber-incorporated CPC0 [UFICPC0], UFICPC3, and UFICPC7) were included into preset CPC specimens for in vitro immersion in lipase phosphate-buffered s...

Journal: :Molecular endocrinology 2006
Katsushi Tsukiyama Yuichiro Yamada Chizumi Yamada Norio Harada Yukiko Kawasaki Masahito Ogura Kazuhisa Bessho Minqi Li Norio Amizuka Masahiro Sato Nobuyuki Udagawa Naoyuki Takahashi Kiyoshi Tanaka Yutaka Oiso Yutaka Seino

Calcium plays a fundamental role as second messenger in intracellular signaling and bone serves as the body's calcium reserve to tightly maintain blood calcium levels. Calcium in ingested meal is the main supply and inadequate calcium intake causes osteoporosis and bone fracture. Here, we describe a novel mechanism of how ingested calcium is deposited on bone. Meal ingestion elicits secretion o...

Journal: :Chang Gung medical journal 2010
Bhagath Kumar Potu Muddanna S Rao Gopalan Kutty Nampurath Mallikarjuna Rao Chamallamudi Soubhagya Ranjan Nayak Huban Thomas

BACKGROUND The plant Cissus quadrangularis (CQ) is used as an osteoprotective agent in Ayurveda, the Indian system of alternative medicine. The present study was done to validate the anti-osteoporotic role of the petroleum ether extract of CQ on ovariectomy-induced osteoporosis in rats. METHODS Female wistar rats were divided into five groups of six rats each; (1) The Normal control (NC) grou...

2017
Nian Jing Rao Jing Yi Wang Ru Qing Yu Yiu Yan Leung Li Wu Zheng

Objective The present study aimed to investigate the role of periapical diseases in inducing medication-related osteonecrosis of the jaws (MRONJ) using an ovariectomized (OVX) mice model. Materials and Methods Twenty C57BL/6N female mice were randomly assigned to two groups. All mice were subjected to bilateral ovariectomy and then treated with oncologic dose of zoledronic acid (ZA) or vehicl...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید