Abstract:
:This study evaluated the effect of air-particle abrasion protocols on the biaxial flexural strength, surface characteristics and phase transformation of zirconia after cyclic loading. Disc-shaped zirconia specimens (Ø: 15mm, thickness: 1.2mm) (N=32) were submitted to one of the air-particle abrasion protocols (n=8 per group): (a) 50μm Al2O3 particles, (b) 110μm Al2O3 particles coated with silica (Rocatec Plus), (c) 30μm Al2O3 particles coated with silica (CoJet Sand) for 20s at 2.8bar pressure. Control group received no air-abrasion. All specimens were initially cyclic loaded (×20,000, 50N, 1Hz) in water at 37°C and then subjected to biaxial flexural strength testing where the conditioned surface was under tension. Zirconia surfaces were characterized and roughness was measured with 3D surface profilometer. Phase transformation from tetragonal to monoclinic was determined by Raman spectroscopy. The relative amount of transformed monoclinic zirconia (FM) and transformed zone depth (TZD) were measured using XRD. The data (MPa) were analyzed using ANOVA, Tukey's tests and Weibull modulus (m) were calculated for each group (95% CI). The biaxial flexural strength (MPa) of CoJet treated group (1266.3±158(A)) was not significantly different than that of Rocatec Plus group (1179±216.4(A,B)) but was significantly higher than the other groups (Control: 942.3±74.6(C); 50μm Al2O3: 915.2±185.7(B,C)). Weibull modulus was higher for control (m=13.79) than those of other groups (m=4.95, m=5.64, m=9.13 for group a, b and c, respectively). Surface roughness (Ra) was the highest with 50μm Al2O3 (0.261μm) than those of other groups (0.15-0.195μm). After all air-abrasion protocols, FM increased (15.02%-19.25%) compared to control group (11.12%). TZD also showed increase after air-abrasion protocols (0.83-1.07μm) compared to control group (0.59μm). Air-abrasion protocols increased the roughness and monoclinic phase but in turn abrasion with 30μm Al2O3 particles coated with silica has increased the biaxial flexural strength of the tested zirconia.
journal_name
J Mech Behav Biomed Materauthors
Ozcan M,Melo RM,Souza RO,Machado JP,Felipe Valandro L,Botttino MAdoi
10.1016/j.jmbbm.2013.01.005subject
Has Abstractpub_date
2013-04-01 00:00:00pages
19-28eissn
1751-6161issn
1878-0180pii
S1751-6161(13)00020-9journal_volume
20pub_type
杂志文章abstract::This study aims to reveal the effects of pressure during cold isostatic pressing (CIP) on the microstructure and optical properties of fluorescent HAp complexes. Although the microsturucture-dependent properties of fluorescent HAp complexes have been reported to improve the antibacterial properties of photocatalyst co...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2018.09.006
更新日期:2018-12-01 00:00:00
abstract::Tribological properties of perfluoropolyether (PFPE) coated 3-glycidoxypropyltrimethoxy silane (GPTMS) SAMs (self-assembled monolayers) onto Ti6Al4V alloy substrate were studied using ball-on-disk experiments. GPTMS SAMs deposition onto a Ti6Al4V alloy surface was carried out using solution phase method. Ultra-thin la...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2012.06.016
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:This study examined the effect of phytic acid (IP6) in stabilizing the morphology of dentine collagen network and resin-dentine bonding. METHODS:Dentine beams were fully demineralized with 10% phosphoric acid (PA) or 1% IP6 (pH 1.2). PA-demineralized beams were divided into three groups: (a) no further treat...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.03.027
更新日期:2015-08-01 00:00:00
abstract::As a substitute for 2,2-bis[4-(2-hydroxy-3- methacryloxypropoxy)phenyl] propane (Bis-GMA) in dental materials, a new dimethacrylate monomer TDDMMA without bisphenol-A structure was synthesized through the reaction between tricyclo[5.2.1.0(2,6)]- decanedimethanol and 2-isocyanatoethyl methacrylate. The TDDMMA was mixed...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.11.020
更新日期:2016-04-01 00:00:00
abstract::Silk is widely used in the biomedical field (e.g., surgical sutures) for its excellent mechanical properties and biocompatibility. The properties of silk can be further enhanced by a multitude of methods, including nano particle feeding, which is convenient and green. Generally, the filament length of a silkworm cocoo...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.104147
更新日期:2021-01-01 00:00:00
abstract::Osteoporotic proximal femur fractures are caused by low energy trauma, typically when falling on the hip from standing height. Finite element simulations, widely used to predict the fracture load of femora in fall, usually include neither mass-related inertial effects, nor the viscous part of bone׳s material behavior....
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.11.026
更新日期:2016-04-01 00:00:00
abstract::Biologic tissues are complex materials that come in many forms and perform a variety of functions. They vary widely in composition and mechanical properties, and determination of the mechanical properties of tissues is of interest to those trying to engineer tissues to restore missing function. In performing experimen...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103503
更新日期:2020-03-01 00:00:00
abstract::Titanium alloys (Ti-6Al-4V) are promising materials as bone implants in clinical surgeries owing to their excellent performances. However, wear debris caused by the tribological behavior of the cortical bone and titanium alloy interface were found to be paramount for implant stability. The contact environment between ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2018.10.031
更新日期:2019-02-01 00:00:00
abstract::Clinical meshes used in pelvic organ prolapse (POP) repair are predominantly manufactured from monofilament polypropylene (PP). Complications from the use of these meshes in transvaginal kits, including mesh exposure and pain, have prompted two public health notifications by the FDA. The aim of this study was to compa...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.04.002
更新日期:2013-07-01 00:00:00
abstract::Orthopaedic surgery involves drilling of bones to get them fixed at their original position. The drilling process used in orthopaedic surgery is most likely to the mechanical drilling process and there is all likelihood that it may harm the already damaged bone, the surrounding bone tissue and nerves, and the peril is...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2016.05.015
更新日期:2016-09-01 00:00:00
abstract::The shape memory effect (SME) has long been the focus of interest of many research groups that have studied many facets of it, yet to the authors' knowledge some molecular parameters, such as the molecular weight, have been skipped. Thus, the aim of this work is to offer further insight into the shape memory effect, b...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2016.04.027
更新日期:2016-08-01 00:00:00
abstract::In the present work, we propose the first structural constitutive model of the passive mechanical behavior of the swine colon that is validated against physiological inflation-extension tests, and accounts for residual strains. Sections from the spiral colon and the descending colon were considered to investigate pote...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2017.08.031
更新日期:2018-01-01 00:00:00
abstract::Poly (glycerol sebacate) (PGS) is a promising elastomer for use in soft tissue engineering. However, it is difficult to achieve with PGS a satisfactory balance of mechanical compliance and degradation rate that meet the requirements of soft tissue engineering. In this work, we have synthesised a new PGS nanocomposite ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2011.05.038
更新日期:2011-11-01 00:00:00
abstract::Tissue engineering is a field which aims to regenerate damaged tissues by enhancing tissue growth through the porous architecture of the scaffolds which is desired to mimic the human cancellous bone. Mg-based scaffolds are gaining importance in the field of tissue engineering owing to its potential application as a bi...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.02.010
更新日期:2019-06-01 00:00:00
abstract::Reuse of NiTi orthodontic wires has become increasingly common in dental clinics. For sterilization and recovery of the original superelastic properties of the wires, a heat treatment is usually performed between 500 and 600 °C. The aim of this study was to analyze the effect of these thermal treatments on the mechani...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2011.11.005
更新日期:2012-02-01 00:00:00
abstract::This study compared the fatigue performance and the stress distribution of endodontically treated molars restored with endocrowns obtained with lithium disilicate glass-ceramic or a polymer-infiltrated ceramic network, both processed by CAD-CAM, and direct composite restorations. Forty-eight human mandibular molars we...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103401
更新日期:2019-12-01 00:00:00
abstract::In this paper the mechanical response of the arthropod cuticle is evaluated by means of a multiscale approach including interface effects. The cuticle's elastic behavior is modeled at the nano and the micro scales by mean-field homogenization techniques. With respect to the work of Nikolov et al. (2011), the idea has ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.04.003
更新日期:2013-07-01 00:00:00
abstract::This paper deals with the effects of dehydration on the mechanical properties of biological soft tissues and with the validity of methods used in previous works such as a coat of petroleum jelly or silicon oil to minimise the drying of the tissue during mechanical testing. We find that the samples get stiffer as they ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2010.07.010
更新日期:2010-11-01 00:00:00
abstract::As a mechanoactive tissue, articular cartilage undergoes compression and shear on a daily basis. With the advent of high resolution and sensitive mechanical testing methods, such as micro- and nanoindentation, it has become possible to assess changes in small-scale mechanical properties due to compression and shear of...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.104113
更新日期:2021-01-01 00:00:00
abstract::A limitation in the use of hydrophilic polymers as implantable devices is their inherently poor mechanical strength. Using interpenetrating polymer networks (IPNs) consisting of both hydrophilic and hydrophobic networks is an effective method of strengthening these polymers. In this work, a series of poly(dimethyl sil...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2009.01.002
更新日期:2009-10-01 00:00:00
abstract::Tissue nonlinearity is conventionally measured in shear wave elastography by studying the change in wave speed caused by the tissue deformation, generally known as the acoustoelastic effect. However, these measurements have mainly focused on the excitation and detection of one specific shear mode, while it is theoreti...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103754
更新日期:2020-07-01 00:00:00
abstract::In aortic valves, biaxial cyclic stretch is known to modulate cell differentiation, extracellular matrix (ECM) synthesis and organization. We designed a novel bioreactor that can apply independent and precise stretch along radial and circumferential directions in a tissue culture environment. While this bioreactor can...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2017.07.041
更新日期:2017-11-01 00:00:00
abstract::There is no consensus over the optimal criterion to define the fatigue life of bone cement in vitro. Fatigue testing samples have been made into various shapes using different surface preparation techniques with little attention being paid to the importance of these variations on the fatigue results. The present study...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.08.023
更新日期:2014-01-01 00:00:00
abstract::The aim of this study was to evaluate if mechanical cycling influences bioactivity and bond strength of resin-dentine interface after bonding with Zn-doped self-etching adhesives. Sound dentine surfaces were bonded with Clearfil SE Bond (SEB), 10 wt% ZnO microparticles or 2 wt% ZnCl2 were added into the SEB primer (P)...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.05.026
更新日期:2015-10-01 00:00:00
abstract::Since the local, on demand, cancer therapy is a challenging clinical issue today, this paper presents the design, fabrication and characterization of a remotely controlled single reservoir drug delivery chip using Ionic Polymer Metal Composite (IPMC) actuator. Here, Drug release was externally programmed and controlle...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2018.06.034
更新日期:2018-10-01 00:00:00
abstract::High brittleness and lack osteogenesis are two major limitations of calcium phosphate cement (CPC) in application in bone defect reconstruction. Here we prepared a composite calcium phosphate cement by mixing N-acetyl cysteine loaded silk fibroin solution with α-tricalcium phosphate. In vitro cytology experiment revea...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103451
更新日期:2020-01-01 00:00:00
abstract::Orthopedic interfaces such as the tendon-bone junction (TBJ) present unique challenges for biomaterials development. Here we describe a multi-compartment collagen-GAG scaffold fabricated via lyophilization that contains discrete mineralized (CGCaP) and non-mineralized (CG) regions joined by a continuous interface. Mod...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.07.016
更新日期:2013-12-01 00:00:00
abstract::The incidence of tendon injury (tendinopathy) has increased over the past decades due to greater participation in sports and recreational activities. But little is known about the aetiology of tendon injuries because of our limited knowledge in the complex structure-function relationship in tendons. Computer models ca...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2016.04.007
更新日期:2016-08-01 00:00:00
abstract::Brazil nut (Bertholletia excelsa) fruits are capable of resisting high mechanical forces when released from trees as tall as 50 m, as well as during animal dispersal by sharp-teethed rodents. Thick mesocarp plays a crucial part in seed protection. We investigated the role of microstructure and how sclereids, fibers, a...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.104306
更新日期:2021-01-07 00:00:00
abstract::A new type of constitutive model and its computational implementation procedure for the simulation of a trabecular bone are proposed in the present study. A yield surface-independent Frank-Brockman elasto-viscoplastic model is introduced to express the nonlinear material behavior such as softening beyond yield point, ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2016.08.028
更新日期:2017-01-01 00:00:00