Calcium Silicate and Calcium Hydroxide Materials for Pulp Capping: Biointeractivity, Porosity, Solubility and Bioactivity of Current Formulations
Maria Giovanna Gandolfi, Francesco Siboni, Tatiana M. Botero et al. · 1 Jan 2015
AIM: The chemical-physical properties of novel and long-standing calcium silicate cements versus conventional pulp capping calcium hydroxide biomaterials were compared. METHODS: Calcium hydroxide-based (Calxyl, Dycal, Life, Lime-Lite) and calcium silicate-based (ProRoot MTA, MTA Angelus, MTA Plus, Biodentine, Tech Biosealer capping, TheraCal) biomaterials were examined. Calcium and hydroxyl ion release, water sorption, interconnected open pores, apparent…
Additive manufacturing of titanium alloys in the biomedical field: processes, properties and applications
Francesco Trevisan, Flaviana Calignano, Alberta Aversa et al. · 25 Sep 2017
The mechanical properties and biocompatibility of titanium alloy medical devices and implants produced by additive manufacturing (AM) technologies - in particular, selective laser melting (SLM), electron beam melting (EBM) and laser metal deposition (LMD) - have been investigated by several researchers demonstrating how these innovative processes are able to fulfil medical requirements for clinical applications.…
3D printing processes for photocurable polymeric materials: technologies, materials, and future trends
Gabriele Taormina, Corrado Sciancalepore, Massimo Messori et al. · 2 Apr 2018
The aim of this review is a faithful report of the panorama of solutions adopted to fabricate a component using vat photopolymerization (VP) processes. A general overview on additive manufacturing and on the different technologies available for polymers is given. A comparison between stereolithography and digital light processing is also presented, with attention to different…
The Effect of Scaffold Pore Size in Cartilage Tissue Engineering
Michele M. Nava, Lorenza Draghi, Carmen Giordano et al. · 1 Jul 2016
INTRODUCTION: The effect of scaffold pore size and interconnectivity is undoubtedly a crucial factor for most tissue engineering applications. The aim of this study was to examine the effect of pore size and porosity on cartilage construct development in different scaffolds seeded with articular chondrocytes. METHODS: We fabricated poly-L-lactide-co-trimethylene carbonate scaffolds with different pore sizes,…
Corrosion of Titanium: Part 1: Aggressive Environments and Main Forms of Degradation
Davide Prando, Andrea Brenna, Maria Vittoria Diamanti et al. · 1 Jan 2017
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…
