نتایج جستجو برای: biomechanical properties

تعداد نتایج: 885026  

Journal: :journal of dentistry, tehran university of medical sciences 0
azam valian assistant professor, department of restorative dentistry, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. elham moravej-salehi assistant professor, department of restorative dentistry, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. allahyar geramy professor, dental research center dentistry research institute, department of orthodontics, tehran university of medical sciences, tehran, iran. elham faramarzi dentist.

controversy exists regarding cavity preparation for restoration of interproximal caries in posterior teeth in terms of preserving the tooth structure and suitable stress distribution. this study aimed to assess the effect of extension and type of class ii cavities and the remaining tooth structure in maxillary premolars restored with composite resin on the biomechanical properties of teeth usin...

Journal: :journal of current ophthalmology 0
هادی استادی مقدم hadi ostadimoghaddam محمدرضا صداقت mohammad reza sedaghat سیدحسین حسینی یزدی seyyed hosein hoseini yazdi حامد نیازمند hamed niyazmand

purpose : to investigate the correlation between corneal biomechanical properties and tomographic parameters of pentacam methods : corneal biomechanical properties and tomographic results of 36 normal subjects were measured by ocular response analyzer (ora) and pentacam and the correlation between these two measurements were analyzed with pearson correlation test with spss version16. results : ...

Journal: :Journal of Investigative Dermatology 1982

2013
Lin Zhang Yan Wang Lili Xie Weili Geng Tong Zuo

Introduction In a broad review, evidence that the corneal biomechanical properties influence the results and outcomes of various ocular measurements and procedures has existed for some time [1,2]. However, assessing the biomechanical properties of corneal tissue in vivo has previously not been possible. With the recent introduction of the Reichert Ocular Response Analyzer (ORA), direct clinical...

Journal: :Biomaterials 2011
Daniel J Huey Kyriacos A Athanasiou

Replacement of the knee meniscus requires a material possessing adequate geometrical and biomechanical properties. Meniscal tissue engineering attempts have been unable to produce tissue with collagen content and biomechanical properties, particularly tensile properties, mimicking native menisci. In an effort to obtain the geometric properties and the maturational growth necessary for the recap...

صادقی, حیدر, محمدآملی, سیما,

objective: The purpose of this study was to determine the effect of eight weeks of strength training on some chosen biomechanical properties of femur of old male rats.  Methods: In this experimental research sixteen old male Wistar rats around Twenty months old were assigned to sedentary control group (n=8) and strength training group (n=8). Strength training group climbed from a ladder f...

Tendon never restores the complete biological and mechanical properties after healing. Several techniques are available for tissue-engineered biological augmentation for tendon healing like stem cells. Recently, synovium has been investigated as a source of cells for tissue engineering. In the present study, we investigated potentials of fibroblast like synoviocytes (FLSs) in tendon healing. Si...

Journal: :journal of biomedical physics and engineering 0
a. norouzpour md, eye research center, khatam-al-anbia eye hospital, mashhad university of medical sciences (mums), mash- had, iran z. hooshyar msc, department of mechanical engineering, mechanical engineering college, shiraz univer- sity, shiraz, iran a. mehdizadeh md-phd, department of medical physics, school of medicine, shiraz university of medical sci- ences (sums), shiraz, iran university of mash- had, mashhad, iran

background: autoregulation of blood flow is a marvelous phenomenon balanc- ing blood supply and tissue demand. although many chemically-based explanations for this phenomenon have been proposed and some of them are commonly used today, biomechanical aspects of this phenomenon was neglected. the biomechanical aspect provides insights to us to model vessel diameter changes more precisely and comp...

2015

Freeze-drying and gamma irradiation are the techniques widely use in tissue banking for preservation and sterilization of tissue grafts respectively. However, the effect of these techniques on biomechanical properties of bovine pericardium is poorly known. A total of 300 strips of bovine pericardium each measured 4 cm 1 cm were used in this study to evaluate the effect of freeze-drying on biome...

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