keyword
MENU ▼
Read by QxMD icon Read
search

Osseointegration

keyword
https://www.readbyqxmd.com/read/28632254/osteogenic-potential-of-gingival-mesenchymal-stem-cells-over-titanium-machined-surfaces
#1
Julio A Carrion, Junaid Rajani, Mohamed Al Bahrawy, Xiaojun Chan, Tae Jin Kim, Srinivas Myneni, Vincent J Iacono
PURPOSE: To evaluate the biochemical composition of bone nodules deposited by gingival mesenchymal stem cells (GMSCs) over titanium machined surfaces in vitro. MATERIALS AND METHODS: GMSCs were isolated from healthy gingival tissues of patients undergoing crown-lengthening surgical procedures. GMSCs were characterized following the International Society for Cellular Therapy guidelines. After incubation of the GMSCs with titanium discs, osteogenic differentiation was induced for 28 days...
June 20, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28631408/resonance-frequency-analysis-of-dental-implants-placed-at-the-posterior-maxilla-varying-the-surface-treatment-only-a-randomized-clinical-trial
#2
Marcelo M Novellino, Newton Sesma, Piero R Zanardi, Dalva C Laganá
BACKGROUND: Chemical modifications of the dental implant surface that improve the wettability result in a faster and better osseointegration. PURPOSE: The aim of this randomized clinical trial was to evaluate the implant stability quotient (ISQ) of implants with similar designs, treated with 2 surfaces, sandblasted acid-etched (SAE) and hydrophilic SAE, within the initial 16 weeks of healing. MATERIAL AND METHODS: A total of 64 implants (32 SAE-control group and 32 modified SAE-test group) with the same design, length, and diameter (conical and compressive, 4...
June 20, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28631013/in-vivo-evaluation-of-the-bone-integration-of-coated-poly-vinyl-alcohol-hydrogel-fiber-implants
#3
David Moreau, Arthur Villain, Manon Bachy, Henry Proudhon, David N Ku, Didier Hannouche, Hervé Petite, Laurent Corté
Recently, it has been shown that constructs of poly(vinyl alcohol) (PVA) hydrogel fibers reproduce closely the tensile behavior of ligaments. However, the biological response to these systems has not been explored yet. Here, we report the first in vivo evaluation of these implants and focus on the integration in bone, using a rabbit model of bone tunnel healing. Implants consisted in bundles of PVA hydrogel fibers embedded in a PVA hydrogel matrix. Half of the samples were coated with a composite coating of hydroxyapatite (HA) particles embedded in PVA hydrogel...
August 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28628350/custom-cast-ball-attachments-used-on-outdated-implants-to-restore-a-maxillary-implant-supported-overdenture
#4
Andressa Rosa Perin Leite, Danny Omar Mendoza Marin, Gabriela Giro, Ana Carolina Pero, Ligia Antunes Pereira Pinelli, JoséMauriciodos Santos Reis
The lack of compatible prosthetic components can be a complication during oral rehabilitations using outdated implants. The aim of the present clinical report was to describe an alternative technique for the fabrication of a maxillary implant-supported overdenture in a patient with 20-year-old dental implants using castable spherical patterns and ball-attachments. The patient had been wearing a relined bar/clip overdenture in the mandible on four external-hexagon dental implants and a relined complete denture in the maxilla on four internal-hexagon implants due to abutment screw fracture inside of the implants, losing the attachment system...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28627358/long-term-changes-in-bone-height-after-mandibular-reconstruction-using-a-free-fibula-graft-in-an-elderly-population
#5
Kosuke Ishikawa, Yuhei Yamamoto, Hiroshi Furukawa, Yoichi Ohiro, Akira Satoh, Toshihiko Hayashi
PURPOSE: This study evaluated short-term and long-term changes in bone height after mandibular reconstruction using an osteotomized fibula graft, with the aim of identifying factors associated with atrophy of the graft in an elderly population. PATIENTS AND METHODS: This retrospective study involved patients who underwent mandibular reconstruction using a free vascularized fibula graft from 2005 through 2015 and had at least 12 months of follow-up. Postoperative panoramic radiographs were used to measure bone height at standardized locations on each segment of the graft at 1 year postoperatively and at later follow-up...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28625187/a-comparison-study-of-complications-and-initial-follow-up-costs-of-transcutaneous-and-percutaneous-bone-conduction-devices
#6
J Godbehere, S D Carr, J Moraleda, P Edwards, J Ray
BACKGROUND: The percutaneous osseointegrated bone conduction device can be associated with more soft tissue complications when compared to the magnetic transcutaneous osseointegrated bone conduction device. This study aimed to determine whether fewer soft tissue complications may result in the transcutaneous osseointegrated bone conduction device being a lower cost option in hearing rehabilitation. METHODS: This retrospective case note review included adult patients who underwent implantation with the transcutaneous Cochlear Attract (n = 22) or percutaneous Cochlear DermaLock (n = 25) bone-anchored hearing aids between September 2013 and December 2014...
June 19, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28622569/selective-laser-melting-porous-metallic-implants-with-immobilized-silver-nanoparticles-kill-and-prevent-biofilm-formation-by-methicillin-resistant-staphylococcus-aureus
#7
Ingmar A J van Hengel, Martijn Riool, Lidy E Fratila-Apachitei, Janneke Witte-Bouma, Eric Farrell, Amir A Zadpoor, Sebastian A J Zaat, Iulian Apachitei
Implant-associated infection and limited longevity are two major challenges that orthopedic devices need to simultaneously address. Additively manufactured porous implants have recently shown tremendous promise in improving bone regeneration and osseointegration, but, as any conventional implant, are threatened by infection. In this study, we therefore used rational design and additive manufacturing in the form of selective laser melting (SLM) to fabricate porous titanium implants with interconnected pores, resulting in a 3...
February 28, 2017: Biomaterials
https://www.readbyqxmd.com/read/28621746/biocompatibility-analyses-of-al%C3%A2-o%C3%A2-treated-titanium-plates-tested-with-osteocyte-and-fibroblast-cell-lines
#8
Alberto Smargiassi, Jessika Bertacchini, Marta Checchi, Francesco Cavani, Marzia Ferretti, Carla Palumbo
Osseointegration of a titanium implant is still an issue in dental/orthopedic implants durable over time. The good integration of these implants is mainly due to their surface and topography. We obtained an innovative titanium surface by shooting different-in-size particles of Al₂O₃ against the titanium scaffolds which seems to be ideal for bone integration. To corroborate that, we used two different cell lines: MLO-Y4 (murine osteocytes) and 293 (human fibroblasts) and tested the titanium scaffolds untreated and treated (i...
June 16, 2017: Biomedicines
https://www.readbyqxmd.com/read/28615491/enhanced-osteointegration-of-poly-methylmethacrylate-bone-cements-by-incorporating-strontium-containing-borate-bioactive-glass
#9
Xu Cui, Chengcheng Huang, Meng Zhang, Changshun Ruan, Songlin Peng, Li Li, Wenlong Liu, Ting Wang, Bing Li, Wenhai Huang, Mohamed N Rahaman, William W Lu, Haobo Pan
Although poly(methylmethacrylate) (PMMA) cements are widely used in orthopaedics, they have numerous drawbacks. This study aimed to improve their bioactivity and osseointegration by incorporating strontium-containing borate bioactive glass (SrBG) as the reinforcement phase and bioactive filler of PMMA cement. The prepared SrBG/PMMA composite cements showed significantly decreased polymerization temperature when compared with PMMA and retained properties of appropriate setting time and high mechanical strength...
June 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28614158/standard-drilling-versus-ultrasonic-implant-site-preparation-a-clinical-study-at-4-weeks-after-insertion-of-conical-implants
#10
Christian Makary, Alberto Rebaudi, Arzu Demircioglu, Pierre Lahoud, Nada Naaman
OBJECTIVE: Clinically evaluate implants placed after ultrasonic implant site preparation (UISP) and standard drilling (SD). MATERIALS AND METHODS: Ten patients received 21 implants placed using UISP (n = 11) or SD (n = 10). Bone quality was hand assessed and final insertion torque (IT), resonance frequency analysis (ISQ) at baseline and ISQ, and removal torque values (RTV) at 4 weeks were recorded and compared. RESULTS: Mean IT values were 70...
June 12, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28613059/-experimental-study-of-transforming-growth-factor-%C3%AE-3-combined-with-dental-pulp-stem-cells-in-promoting-the-implant-s-osseointegration
#11
T Wang, Huojia Muhetaer, J Li
Objective: To investigate the effect of transforming growth factor-β3 (TGF-β3) and dental pulp stem cells (DPSC) in promoting the implant's osteointegration. Methods: Thirty-three New Zealand white rabbits were randomly divided into phosphate buffer saline (PBS) group, DPSC group and TGF-β3 + DPSC group (12 rabbits/group). Two teeth from the rabbits's mandibular incisors or molars were pulled out randomly, then implant were placed in the tooth extraction site immediately. In PBS group, the implant area was filled with Bio-Oss powder 0...
June 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28612506/synergistic-interactions-between-corrosion-and-wear-at-titanium-based-dental-implant-connections-a-scoping-review
#12
REVIEW
K Apaza-Bedoya, M Tarce, C A M Benfatti, B Henriques, M T Mathew, W Teughels, J C M Souza
Two-piece implant systems are mainly used in oral implantology involving an osseointegrated implant connected to an abutment, which supports prosthetic structures. It is well documented that the presence of microgaps, biofilms and oral fluids at the implant-abutment connection can cause mechanical and biological complications. The aim of this review paper was to report the degradation at the implant-abutment connection by wear and corrosion processes taking place in the oral cavity. Most of the retrieved studies evaluated the wear and corrosion (tribocorrosion) of titanium-based materials used for implants and abutments in artificial saliva...
June 14, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28611362/zinc-modified-calcium-silicate-coatings-promote-osteogenic-differentiation-through-tgf-%C3%AE-smad-pathway-and-osseointegration-in-osteopenic-rabbits
#13
Jiangming Yu, Lizhang Xu, Kai Li, Ning Xie, Yanhai Xi, Yang Wang, Xuebin Zheng, Xiongsheng Chen, Meiyan Wang, Xiaojian Ye
Surface-modified metal implants incorporating different ions have been employed in the biomedical field as bioactive dental implants with good osseointegration properties. However, the molecular mechanism through which surface coatings exert the biological activity is not fully understood, and the effects have been difficult to achieve, especially in the osteopenic bone. In this study, We examined the effect of zinc-modified calcium silicate coatings with two different Zn contents to induce osteogenic differentiation of rat bone marrow-derived pericytes (BM-PCs) and osteogenetic efficiency in ovariectomised rabbits...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28610485/effects-of-the-bilayer-nano-hydroxyapatite-mineralized-collagen-guided-bone-regeneration-membrane-on-site-preservation-in-dogs
#14
Yi Sun, Chengyue Wang, Qixin Chen, Hai Liu, Chao Deng, Peixue Ling, Fu-Zhai Cui
This study was aimed at assessing the effects of the porous mineralized collagen plug with or without the bilayer mineralized collagen-guided bone regeneration membrane on alveolar ridge preservation in dogs. The third premolars in the bilateral maxilla of mongrel dogs ( N = 12) were extracted. Twenty-four alveolar sockets were thus randomly divided into three groups: membrane + collagen plug (MP, n = 8), nonmembrane + collagen plug (NP, n = 8) and blank group without any implantation (BG, n = 8)...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28608839/microgroove-and-collagen-poly-%C3%AE%C2%B5-caprolactone-nanofiber-mesh-coating-improves-the-mechanical-stability-and-osseointegration-of-titanium-implants
#15
Morshed Khandaker, Shahram Riahinezhad, Wendy R Williams, Roman Wolf
The effect of depositing a collagen (CG)-poly-ε-caprolactone (PCL) nanofiber mesh (NFM) at the microgrooves of titanium (Ti) on the mechanical stability and osseointegration of the implant with bone was investigated using a rabbit model. Three groups of Ti samples were produced: control Ti samples where there were no microgrooves or CG-PCL NFM, groove Ti samples where microgrooves were machined on the circumference of Ti, and groove-NFM Ti samples where CG-PCL NFM was deposited on the machined microgrooves...
June 13, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28605377/an-anesthesia-surgery-and-harvest-method-for-the-evaluation-of-transpedicular-screws-using-an-in-vivo-porcine-lumbar-spine-model
#16
Young Jae Moon, Jong-Kil Kim, Hong-Geun Oh, Ji-Hun Kang, Gun-Joo Park, Kwang-Bok Lee
Pedicle screw fixation is the gold standard for the treatment of spinal diseases. However, many studies have reported the issue of loosening pedicle screws after spinal surgery, which is a serious concern. To address this problem, diverse types of pedicle screws have been examined to identify those with good fixation strength and osseointegration in spine bone. The porcine spine is a good alternative for the human spine in the evaluation of pedicle screws due to the anatomical size, mechanical characteristics, and cost...
May 31, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28604262/current-evidence-on-the-socket-shield-technique-a-systematic-review
#17
Amit Srikant Gharpure, Neel B Bhatavadekar
The recently popularised socket-shield technique involves intentional retention of a section of the remnant root at the time of immediate implant placement to preserve the buccal/proximal bone from resorption. The objective of this systematic review was to assess the literature available on the socket-shield technique and weigh its biological plausibility and long-term clinical prognosis. A Systematic Search was performed in PubMed-Medline, Embase, Web of Knowledge, Google Scholar and Cochrane Central for clinical/ animal studies up to April 2017...
June 12, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28597890/an-in-vivo-study-on-bone-formation-behavior-of-microporous-granular-calcium-phosphate
#18
G M L Dalmônico, P F Franczak, N Levandowski, N H A Camargo, A L Dallabrida, B D da Costa, O García Gil, O Cambra-Moo, M A Rodríguez, M Canillas
This study was developed based on in vivo investigation of microporous granular biomaterials based on calcium phosphates, involving matrices of β-tricalcium phosphate (β-TCP), hydroxyapatite (HA), biphasic compositions of both phases and a control group. The physicochemical characterization of materials was carried out by X-Ray diffraction (DRX) and mercury porosimetry. Biodegradability, bioactivity and neoformation processes were investigated by Raman spectroscopy, scanning electron microscopy (SEM) and polarized light conducted on biopsies obtained from in vivo tests for periods of 90 and 180 days...
June 9, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28596582/cell-sheets-of-co-cultured-endothelial-progenitor-cells-and-mesenchymal-stromal-cells-promote-osseointegration-in-irradiated-rat-bone
#19
Huan Liu, Wei Zhou, Nan Ren, Zhihong Feng, Yan Dong, Shizhu Bai, Yang Jiao, Zhongshan Wang, Yimin Zhao
Irradiated bone has a greater risk of implant failure than nonirradiated bone. The purpose of this study was to investigate the influence of cell sheets composed of co-cultured bone marrow mesenchymal stromal cells (BMSCs) and endothelial progenitor cells (EPCs) on implant osseointegration in irradiated bone. Cell sheets (EPCs, BMSCs or co-cultured EPCs and BMSCs) were wrapped around titanium implants to make cell sheet-implant complexes. The co-cultured group showed the highest osteogenic differentiation potential in vitro, as indicated by the extracellular matrix mineralization and the expression of osteogenesis related genes at both mRNA and protein levels...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28594591/30-years-of-translational-research-in-zirconia-dental-implants-a-systematic-review-of-the-literature
#20
Allauddin Siddiqi, Abdul Samad Khan, Sobia Zafar
Thirty years of transitional research in zirconia (Zr) ceramics has led significant improvements in the biomedical field especially in dental Implantology. Oral implants made of Yttria-tetragonal zirconia polycrystals (Y-TZP) because of their excellent mechanical properties, good biocompatibility and aesthetically acceptable colour have emerged as an attractive metal-free alternative to titanium implants. The aim of the review was to highlight the translation research in Zr dental implants that has been conducted over the last three decades using pre-clinical animal models...
June 8, 2017: Journal of Oral Implantology
keyword
keyword
16739
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"