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Journal of Applied Biomaterials & Functional Materials

Davide Prando, Andrea Brenna, Maria Vittoria Diamanti, Silvia Beretta, Fabio Bolzoni, Marco Ormellese, MariaPia Pedeferri
Titanium is well known as one of the most corrosion-resistant metals. However, it can suffer corrosion attacks in some specific aggressive conditions. To further increase its corrosion resistance, it is possible either to modify its surface, tuning either thickness, composition, morphology or structure of the oxide that spontaneously forms on the metal, or to modify its bulk composition. Part 2 of this review is dedicated to the corrosion of titanium and focuses on possible titanium treatments that can increase corrosion resistance...
November 21, 2017: Journal of Applied Biomaterials & Functional Materials
Min Liang, Zhenzhu Li, Cengceng Gao, Fuping Wang, Zhongmin Chen
BACKGROUND: The development and application of medical glue has been continuously expanding and advancing. However, there are few glues that combine low-cost with excellent biocompatibility. METHODS: We have prepared a medical tissue glue using a gelatin (Gel), sericin (SS) and carboxymethyl chitosan (CMCS) blend solution, cross-linked with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC). The combination's characteristics and microstructure morphology were observed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM)...
November 16, 2017: Journal of Applied Biomaterials & Functional Materials
Mehmet C Kayacan, Yakup B Baykal, Tamer Karaaslan, Koray Özsoy, İlker Alaca, Burhan Duman, Yunus E Delikanlı
BACKGROUND: This study investigated the design and osseointegration process of transitive porous implants that can be used in humans and all trabecular and compact bone structure animals. The aim was to find a way of forming a strong and durable tissue bond on the bone-implant interface. METHODS: Massive and transitive porous implants were produced on a direct metal laser sintering machine, surgically implanted into the skulls of sheep and kept in place for 12 weeks...
November 13, 2017: Journal of Applied Biomaterials & Functional Materials
Arif Karademir, Cem Aydemir, Dogan Tutak, Raja Aravamuthan
BACKGROUND: In our contemporary world, while part of the fibers used in the paper industry is obtained from primary fibers such as wood and agricultural plants, the rest is obtained from secondary fibers from waste papers. To manufacture paper with high optical quality from fibers of recycled waste papers, these papers require deinking and bleaching of fibers at desired levels. High efficiency in removal of ink from paper mass during recycling, and hence deinkability, are especially crucial for the optical and printability quality of the ultimate manufactured paper...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
Davide Prando, Andrea Brenna, Maria Vittoria Diamanti, Silvia Beretta, Fabio Bolzoni, Marco Ormellese, MariaPia Pedeferri
Titanium has outstanding corrosion resistance due to the external natural oxide protective layer formed when it is exposed to an aerated environment. Despite this, titanium may suffer different forms of corrosion in severe environments: uniform corrosion, pitting and crevice corrosion, hydrogen embrittlement, stress-corrosion cracking, fretting corrosion and erosion. In this first review, forms of corrosion affecting titanium are analyzed based on a wide literature review. For each form of corrosion, the mechanism and most severe environment are reported according to the current understanding...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
Marina Figliuzzi, Barbara Bonandrini, Andrea Remuzzi
Renal transplantation is currently the most effective treatment for end-stage renal disease, which represents one of the major current public health problems. However, the number of available donor kidneys is drastically insufficient to meet the demand, causing prolonged waiting lists. For this reason, tissue engineering offers great potential to increase the pool of donated organs for kidney transplantation, by way of seeding cells on supporting scaffolding material. Biological scaffolds are prepared by removing cellular components from the donor organs using a decellularization process with detergents, enzymes or other cell lysing solutions...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
Daniela Carmagnola, Mihai Tarce, Claudia Dellavia, Lia Rimondini, Elena M Varoni
BACKGROUND: The main objective of regenerative periodontal therapy is to completely restore the periodontal tissues lost. This review summarizes the most recent evidence in support of scaffold- and cell-based tissue engineering, which are expected to play a relevant role in next-generation periodontal regenerative therapy. METHODS: A literature search (PubMed database) was performed to analyze more recently updated articles regarding periodontal regeneration, scaffolds and cell-based technologies...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Jaakko M Piitulainen, Riina Mattila, Niko Moritz, Pekka K Vallittu
BACKGROUND: Glass fiber-reinforced composites (FRCs) have been adapted for routine clinical use in various dental restorations and are presently also used in cranial implants. The aim of this study was to measure the load-bearing capacity and failure type of glass FRC implants during static loading with and without interconnective bars and with different fixation modes. METHODS: Load-bearing capacities of 2 types of FRC implants with 4 different fixation modes were experimentally tested...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Wai-Ching Liu, Blake Ballenger, Amnah Algarni, Mariano Velez, Tien-Min G Chu
BACKGROUND: Bioactive glass has attracted substantial interest in orthopedics, but it has been less explored as a drug carrier. This study investigated the bovine serum albumin (BSA) release from bioactive 13-93B0 and 13-93B3 glasses. METHODS: Glass disks (13-93B0 and 13-93B3; n = 5) were loaded with 4 mg of BSA and coated under different chitosan-coating conditions. The amount of BSA released in phosphate-buffered saline (PBS) was evaluated, and a degradation study was performed to find out the weight loss and pH of PBS...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Cigdem Guler, Ali Keles, Mehmet S Guler, Sendogan Karagoz, Ömer N Cora, Gul Keskin
BACKGROUND: Compomers are mostly used in primary dentition. The thermal conductivity properties of traditional or colored compomers have not been investigated in detail so far. The aim of this in vitro study was to assess and compare the thermal conductivities of traditional and colored compomers. METHOD: Two sets of compomers - namely, Twinky Star (available in berry, lemon, green, silver, blue, pink, gold and orange shades) and Dyract Extra (available in B1, A3 and A2 shades) - were included in this study...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Stanley C Onwubu, Anisa Vahed, Shalini Singh, Krishnan M Kanny
BACKGROUND: This study aimed to determine the physicochemical characteristics of an eggshell-based dental abrasive material. METHODS: The eggshell powder abrasive material (EPAM) was synthesized by ball milling eggshell powder and surfactants. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM) and a laser diffraction particle size analyzer (PSA) were used to characterize EPAM. In addition, the abrasive characteristics of EPAM were evaluated by comparison using poly(methyl methacrylate) (PMMA) resins...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Adriana Bigi, Elisa Boanini
The design and development of novel materials for biomineralized tissues is an extremely attractive field of research where calcium phosphates (CaPs)-based materials for biomedical applications play a leading role. The biological performance of these compounds can be enhanced through functionalization with biologically active ions and molecules. This review reports on some important recent achievements in creating functionalized biomimetic CaP materials for applications in the musculoskeletal field. Particular attention is focused on the modifications of these inorganic compounds with bioactive ions, growth factors and drugs, as well as on recent trends in some important CaP applications as biomaterials - namely, as bone cements, coatings of metallic implants and scaffolds for regenerative medicine...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Nilza G Ramião, Pedro S Martins, Maria L Barroso, Diana C Santos, António A Fernandes
BACKGROUND: The durability of breast implant material is associated with failure probability, increasing with time from implantation. The current study avoided the bias introduced by biological factors, to systematically investigate the degradation over time of shell materials. The same fundamental physical and chemical conditions were maintained (temperature and pH) throughout the study, to decouple biological aspects from the degradation process. METHODS: Six virgin implants of 2 brands were submitted to the in vitro degradation process, mechanical testing of shell materials, surface change analysis (via scanning electron microscopy [SEM]) and chemical composition analysis by Fourier transform infrared (FTIR) spectroscopy...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Levent Demiriz, Ebru Hazar Bodrumlu
BACKGROUND: During the apexification procedure for teeth with open apices, mineral trioxide aggregate (MTA) may be unintentionally extruded. The aim of the present study was the retrospective evaluation of the healing of periapical lesions in permanent incisor teeth with open apices after the unintentional extrusion of MTA. METHODS: The clinical and radiographic records of 55 maxillary permanent central teeth treated by MTA apexification were evaluated. Filled teeth with unintentionally extruded MTA were selected as group 1 (n = 21), whereas the teeth with no MTA extrusion were selected as group 2 (n = 34)...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Alessandro Scalise, Matteo Torresetti, Federica Verdini, Marianna Capecci, Elisa Andrenelli, Alessandro Mengarelli, Maria Gabriella Ceravolo, Sandro Fioretti, Giovanni Di Benedetto
BACKGROUND: Heel reconstruction represents a challenge for all plastic surgeons due to the anatomical and functional features of this weight-bearing area. In the last decade a combined use of acellular dermal matrices and skin grafts has been proposed as a reliable and less invasive alternative for complex wound management; nevertheless only a few cases have been reported in the literature. METHODS: We describe the long-term outcome of 2 cases of severe degloving trauma of the plantar region with massive soft tissue defects of the foot, that underwent surgical reconstruction with artificial dermis and skin grafts...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Masoumeh Meskinfam Langroudi, Masoud Giahi Saravani, Azita Nouri
BACKGROUND: Different methods have been used to prepare bone-like composites from inorganic nanoparticles embedded in polymeric matrixes to obtain the properties and structures required for bone fillers. METHODS: Bone-like nano-hydroxyapatite (nHA) was synthesized using a biomimetic method, with polyvinylpyrrolidone (PVP) as template and sodium dodecyl sulfate (SDS) as surfactant. RESULTS: The results demonstrated the formation of HA composites and showed that polymer and surfactant as the polymer capsule can be properly used to control the size, shape, morphology and dispersion of HA crystals...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
Liu Lei, Han Xiuli, Li Mingduo, Zhang Di
BACKGROUND: Mold fluxes are mainly prepared using cement clinker, quartz, wollastonite, borax, fluorite, soda ash and other mineral materials. Quartz, as one of the most common and essential materials, was chosen for this study to analyze itseffects on crystallization temperature, critical cooling rate, crystal incubation time, crystallization ratio and phases of flux film. METHODS: We used the research methods of process mineralogy with the application of the single hot thermocouple technique, heat flux simulator, polarizing microscope, X-ray diffraction, etc...
October 31, 2017: Journal of Applied Biomaterials & Functional Materials
Sven Mercieca, Malcolm Caligari Conti, Joseph Buhagiar, Josette Camilleri
BACKGROUND: The aim of this study was to compare the degradation resistance of nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys used as a base material for partial dentures in contact with saliva. METHODS: Wiron® 99 and Wironit Extra-Hard® were selected as representative casting alloys for Ni-Cr and Co-Cr alloys, respectively. The alloys were tested in contact with deionized water, artificial saliva and acidified artificial saliva. Material characterization was performed by X-ray diffractometry (XRD) and microhardness and nanohardness testing...
October 26, 2017: Journal of Applied Biomaterials & Functional Materials
K Görkem Ulu Güzel, Işıl Sönmez
BACKGROUND: Light-activated resin-based dental fissure sealants are the most widely accepted among clinicians. The objective of this study was to determine monomer release of 3 different light-curing fissure sealants in vitro: Control Seal (Voco, Germany), Fissurit FX (Voco, Germany) and R&D Series Fıssured Nova (Imicrly, Turkey). METHODS: Each material was polymerized with a curing light: Valo Cordless (Ultradent) LED in standard mode for 20 seconds (n = 27) and 40 seconds (n = 27) and in Xtra power mode (plasma arc) for 3 seconds (n = 27)...
October 18, 2017: Journal of Applied Biomaterials & Functional Materials
(no author information available yet)
J Appl Biomater Funct Mater. 2014; 12(1):13-20 What role do periodontal pathogens play in osteoarthritis and periprosthetic joint infections of the knee? Ehrlich GD, Hu FZ, Sotereanos N, Sewicke J, Parvizi J, Nara PL, Arciola CR PMID: 24921460 DOI: 10.5301/jabfm.5000203 Accepted on 09/11/2013 Available online on 02/06/2014 Published online on 12/06/2014 The above article appeared in J Appl Biomater Funct Mater 2014;12(1):13-20. The studies under the clinical trial set forth in the article were performed with a large group of co-investigators...
October 18, 2017: Journal of Applied Biomaterials & Functional Materials
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