نتایج جستجو برای: implant bone defect

تعداد نتایج: 427372  

2013
Melanie J Coathup Qian Cai Charlie Campion Thomas Buckland Gordon W Blunn

Calcium phosphate (CaP) particles as a carrier in an injectable bone filler allows less invasive treatment of bony defects. The effect of changing granule size within a poloxamer filler on the osteointegration of silicate-substituted calcium phosphate (SiCaP) bone substitute materials was investigated in an ovine critical-sized femoral condyle defect model. Treatment group (TG) 1 consisted of S...

Journal: :journal of dentistry, tehran university of medical sciences 0
mahasti sahabi assistant professor, department of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran ; dental research center, research institute of dental sciences of shahid beheshti, university of medical sciences, tehran, iran. mehdi adibrad periodontist, department of periodontology, school of dentistry, isfahan university of medical science, isfahan, iran. fatemeh sadat mirhashemi dental research center, research institute of dental sciences of shahid beheshti, university of medical sciences, tehran, iran ; msc, ph.d student, mechanics of agricultural engineering, ferdowsi university of mashhad, mashhad, iran. sareh habibzadeh assistant professor, department of prosthodontist, tehran university of medical sciences, international campus, dental school, tehran, iran.

the purpose of this study was to determine the influence of platform switching on stress distribution of two different implant systems using three-dimensional (3d) finite element models.six 3d finite element models were created to replicate two different implant systems with peri-implant bone tissue, in which six different implant-abutment configurations were represented: model xive-a: 3.8-mm-d...

Journal: :Journal of biomedical materials research. Part A 2009
Dennis P Link Juliette van den Dolder Jeroen J J P van den Beucken Wouter Habraken Annemieke Soede Otto C Boerman Antonios G Mikos John A Jansen

This study focused on the degradation properties of gelatin microparticles incorporated in calcium phosphate (CaP) cement and the subsequent effect of these composites on bone formation. Positively charged alkaline gelatin (type A) microparticles or negatively charged acidic gelatin (type B) microparticles were incorporated in CaP cement, which was implanted in critical-sized cranial defect in ...

2001
G SARASWATHY S PAL C ROSE

With the aim of developing an ideal bone graft, a new bone grafting material was developed using deglued bone, chitosan and gelatin. Deglued bone (DGB) which is a by-product of bone glue industries and has the close crystallographic similarities of hydroxyapatite was used as main component in the preparation of bone implant. Chitosan was prepared from the exoskeleton of prawn (Pinaeus indicus, ...

Journal: :The journal of dental panacea 2023

Now a days most commonly used material to treat the defects in bone after trauma or any pathology are grafts. Bone grafting is procedure which performed surgically join defect surrounding for union of bone. It was found that graft allogenic nature as well other bioactive synthetic substitutes shows good integration with remaining To increase chances acceptance these materials and others additio...

Journal: :journal of dentistry, tehran university of medical sciences 0
hamidreza barikani dental implant research center, tehran university of medical sciences tehran, iran. shadab rashtak dental implant research center, tehran university of medical sciences tehran, iran. soolmaz akbari dental implant research center, tehran university of medical sciences tehran, iran. samareh badri dental implant research center, tehran university of medical sciences tehran, iran. niloufar daneshparvar dental student, tehran university of medical sciences tehran, iran. amirreza rokn associated professor, dental implant research center and periodontics department, tehran university of medical sciences tehran, iran.

the focus of this paper is to evaluate the influence of mechanical characteristics of the implant on primary stability in different bone types, based on resonance frequency analysis (rfa).a number of 60 nobel biocare replace select tiunit tapered implants of two different lengths (10 mm and 13 mm) and three different widths as 3.4 mm (narrow platform (np)), 4.3 mm (regular platform (rp)) and 5 ...

2017
Tao Guo Xiaobin Tian Bo Li Tianfu Yang Yubao Li

BACKGROUND This study sought to prepare a new PVA/n-HA/PA66 composite to investigate the repair of articular cartilage and subchondral defects in rabbit knee joints. METHODS A 5 × 5 × 5 mm-sized defect was created in the patellofemoral joints of 72 healthy adult New Zealand rabbits. The rabbits were then randomly divided into three groups (n = 24): PVA/n-HA+PA66 group, polyvinyl alcohol (PVA)...

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...

Journal: :dental research journal 0
nettemu sunil kumar nettem sowmya dhoom singh mehta pendyala siva kumar

the anterior maxilla presents a challenging milieu interior for ideal placement of implants because of the compromised bone quality. with the advent of intraoral bone harvesting and augmentation techniques, immediate implant placement into fresh extraction sockets have become more predictable. immediate implant placement has numerous advantages compared to the delayed procedure including superi...

Journal: :International Journal of Biomaterials 2021

Osteomyelitis is an infectious disease which also a major complication of bone defects. This study aims to determine the effect bovine hydroxyapatite-gelatin-based implants with gentamicin as antibiotic (BHA-GEL-GEN implant) on regeneration defects in vivo. The BHA-GEL-GEN and BHA-GEL were made by direct compression. In vivo was carried out Wistar rats. rats divided into three groups: negative ...

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