نتایج جستجو برای: bone implants application

تعداد نتایج: 1101817  

2012
Wirley Gonçalves Assunção Valentim Adelino Ricardo Barão Érica Alves Gomes Juliana Aparecida Delben Ricardo Faria Ribeiro

The use of dental implants is widespread and has been successfully applied to replace missing teeth (Amoroso et al., 2006). Although high success rate has been reported by several clinical studies, early or late dental implants failures are still inevitable. During mastication, overstress around dental implants may cause bone resorption, which leads to infection on the peri-implant region and f...

Farzad Rajaei, Mohammadali Shokrgozar, Zohreh Bagher,

Background: Bone tissue engineering requires materials that are biocompatible, mechanically suited for bone function, integrated with the host skeleton, and support osteoinduction of the implanted cells for new bone formation. The aim of this study was to compare the osteogenic potential of xenograft with hydroxyapatite/β- tricalcium phosphate (HA/β-TCP) scaffold. Methods: New Zealand rabbits (...

Journal: :dental research journal 0
matteo danza annalisa palmieri francesca farinella giorgio brunelli francesco carinci ambra girardi

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: the aim of research was to study spiral family implant by finite element analysis (fea) inserted in different bone qualities connected with abutments of different angulations. methods: the biomechanical behaviour of 4.2 × 13 mm dental implants, connecting screw, straight and 15° and 25° angulated abutments subj...

ژورنال: مجله دندانپزشکی 2009
امتی شبستری, قاسم, سیادت, حکیمه, علی خاصی, مرضیه, قویزی, رحاب, میر فضائلیان, علی,

Background and Aim: The aim of this clinical study was to determine the effectiveness of progressive loading procedures on preserving crestal bone height and improving peri-implant bone density around maxillary implants restored with single crowns by an accurate longitudinal radiographic assessment technique. Materials and Methods: Eleven Micro-Thread Osseo Speed dental implants were place...

عابدی, فاطمه, رکن, امیررضا ,

  Background : Although factors such as implant length, location, and diameter as well as bone quality have been associated with excessive failure rates, smoking is suggested as a stronger predisposing factor for higher failure rates. Thus, knowing the relationship between bone loss around the dental implants, maintenance of the implants and smoking could be a principle step towards solving the...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
masih firouzbakht msc. department of mechanical engineering, islamic azad university, khomeinishahr branch/isfahan, iran hamed ajabi naeeni assistant professor, department of mechanical engineering, islamic azad university, khomeinishahr branch/isfahan, iran mostafa pirmoradian assistant professor, department of mechanical engineering, islamic azad university, khomeinishahr branch/isfahan, iran

longevity of osseointegrated implants are intensely influenced by biomechanical factors. control of these factors prevents mechanical complications, which include fracture of screws, components, or materials veneering the framework. in this study, the impact of length and threads pitch of dental implants on the stress distribution and maximum von mises stress in implant-abutment complex and jaw...

2016
Umesh Y Pai

Osseointegration of a dental implant is a primary measure of its long term success. Direct bone-toimplant contact is desired for a biomechanical anchoring of implants to bone rather than fibrous tissue encapsulation. Surface characteristics of implants such as surface treatment and thread designs play a determinant role in these biological interactions. Nanotechnologies are increasingly used fo...

2007
Masako Sawaki Takaaki Ueno Toshimasa Kagawa Nobuyoshi Mizukawa Miwa Kanou Yoshiro Sakata Kozo Honda Nobuaki Shirasu Toshio Sugahara

The purpose of this study was to evaluate the clinical application of endosseous implants for management of grafted alveolar cleft. Four patients (1 male and 3 female; mean age 26.6 years; age ranging from 21.5 to 30.4 years at first implant surgery) with unilateral cleft lip and palate were evaluated. All patients received autogenous particulate cancellous bone and marrow graft (PCBM) to close...

Journal: :Mathematical Problems in Engineering 2021

Dental implants have been studied over the years to replace missing teeth. One of conditions for success is their stability and resistance under applied forces minimal tension in surrounding bone. The purpose this dissertation numerical three-dimensional analysis jaws with mechanical thermal loading by finite element method. For purpose, implant simulations (including ceramic crown, titanium ro...

ترابی, سارا, علیرضایی, پریسا, غلامرضایی , کوشا, مرشدی, احسان, وفائی, فریبرز, خوشحال, معصومه ,

Introduction & Objective: This finite elements study for the first time has investigated the pattern of strain distribution in bone around dental implants in one and two implant supported overdenture treatment planning in protrusive and laterusive movements, in order to choose the best plan biomechanically. Materials & Methods: To simulate the dental- implant and the bone, with Catia softwar...

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