نتایج جستجو برای: implant geometry

تعداد نتایج: 190677  

2001
Dashtseren Erdenebat Shigeyoshi Kitazawa Tatsuya Kitamura

Our study focuses on the development of a new feature driven speech-processing strategy for cochlear implant system. In each cycle of stimulation of the cochlea, an electrode, corresponding to second formant frequency was chosen among 14 basilar electrodes. On the base of voiced/unvoiced decision of the speech, an electrode corresponding to first formant frequency was selected for stimulation a...

Journal: :The Journal of bone and joint surgery. American volume 2001
C S Heim P D Postak N A Plaxton A S Greenwald

Restoration of normal knee joint function through surgical reconstruction is dependent upon load sharing between the implant and surrounding soft tissue structures. Mobile bearing knee designs offer the advantage of maximum conformal geometry while diminishing constraint forces to fi xation interfaces through plateau mobility. The degree of mobility afforded by these designs in the anterior-pos...

2011
Max Kahnt Francis Galloway Heiko Seim Hans Lamecker Mark Taylor Stefan Zachow

To preoperatively assess the functional outcome of a total joint replacement, finite element analysis can be used for an objective evaluation of individual implant configurations. For large scale studies, where the implant configuration is varied in size, position or design, numerous finite element meshes have to be generated. To improve the planning process we propose a method that outputs a m...

Journal: :Journal of biomechanics 2010
Samira Faegh Sinan Müftü

In this paper the variation of normal and shear stresses along a path defined on the bone-dental implant interface is investigated. In particular, the effects of implant diameter, collar length and slope, body length, and the effects of four different types of external threads on the interfacial stress distribution are studied. The geometry of the bone is digitized from a CT scan of a mandibula...

2015
A. C. T. Vrancken W. Madej G. Hannink N. Verdonschot T. G. van Tienen P. Buma Bart O. Williams

PURPOSE Since the treatment options for symptomatic total meniscectomy patients are still limited, an anatomically shaped, polycarbonate urethane (PCU), total meniscus replacement was developed. This study evaluates the in vivo performance of the implant in a goat model, with a specific focus on the implant location in the joint, geometrical integrity of the implant and the effect of the implan...

Journal: :Computers in Biology and Medicine 2021

This study aimed to clarify the effects of bone remodeling on biomechanical behavior in a patient with mandibular implant-supported overdenture by comparing computed tomography-based finite element analyses (CT-FEA) two time points CT data. The present FEA was based data collected from 62-year-old female subject, who wore implant supported four dental implants bar attachment. Two kinds FE model...

Journal: :Prosthesis 2021

To ensure the long-term success of a dental implant, it is imperative to understand how chewing loads are transferred through implant prosthetic components surrounding bone tissue. The stress distribution depends on several factors, such as load type, bone–implant interface, shape and materials fixture quality quantity bone. These aspects fundamental importance stability evaluate remodelling ca...

Journal: :Applied sciences 2021

This study investigated the correlation between bone characteristics, design of orthodontic mini-implants, pull-out force, and primary stability. experimental in vitro has examined commercial mini-implants different sizes designs, produced by two manufacturers: Tomas-pin SD (Dentaurum, Ispringen, Germany) Perfect Anchor (Hubit, Seoul, Korea). The total number 40 were tested. There are propertie...

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