دورية أكاديمية
أعرض في EDS

In vitro investigation of coupling-agent-free dental restorative composite based on nano-porous alumina fillers.

التفاصيل البيبلوغرافية
العنوان: In vitro investigation of coupling-agent-free dental restorative composite based on nano-porous alumina fillers.
المؤلفون: Thorat SB; Department of Nanophysics, Istituto Italiano di Tecnologia, Genova, Italy; Università di Genova, viale Causa 13, Genova I-16145, Italy. Electronic address: sanjay.thorat@iit.it., Diaspro A; Department of Nanophysics, Istituto Italiano di Tecnologia, Genova, Italy., Salerno M; Department of Nanophysics, Istituto Italiano di Tecnologia, Genova, Italy.
المصدر: Journal of dentistry [J Dent] 2014 Mar; Vol. 42 (3), pp. 279-86. Date of Electronic Publication: 2013 Dec 11.
نوع المنشور: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: England NLM ID: 0354422 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-176X (Electronic) Linking ISSN: 03005712 NLM ISO Abbreviation: J Dent Subsets: MEDLINE
أسماء مطبوعة: Publication: Kidlington : Elsevier
Original Publication: Bristol, Eng., Wright.
مواضيع طبية MeSH: Aluminum Oxide/*chemistry , Composite Resins/*chemistry , Dental Materials/*chemistry , Nanoparticles/*chemistry, Bisphenol A-Glycidyl Methacrylate/chemistry ; Drug Delivery Systems ; Elastic Modulus ; Feasibility Studies ; Humans ; Materials Testing ; Metal Nanoparticles/chemistry ; Methacrylates/chemistry ; Microscopy, Atomic Force ; Microscopy, Electron, Scanning ; Pliability ; Polyethylene Glycols/chemistry ; Polymethacrylic Acids/chemistry ; Porosity ; Silver/chemistry ; Spectrophotometry, Atomic ; Stress, Mechanical ; Surface Properties ; Temperature ; Time Factors ; Water/chemistry
مستخلص: Objectives: The study aims at demonstrating the feasibility of a novel type of coupling-agent-free resin composite based on nano-porous fillers.
Methods: The fillers were obtained by ball-milling anodic alumina membranes. Composites were prepared with standard resin at maximum loading of 50% by weight. The resin matrix penetration into the pores was verified visually by scanning electron microscopy and mechanically by atomic force microscopy in force modulation mode. The dynamic flexural modulus at 1Hz was measured by dynamic mechanical analysis. Silver nanoparticles were also synthesized in the pores and their release was investigated with inductive coupled plasma optical emission spectrometry.
Results: A storage modulus of 5GPa was measured, similar to the ∼6GPa ones of two coupling-agent-based dental restorative composites used for comparison, which is a promising starting point, additionally showing better one-year equivalent ageing as compared to both commercial materials. Loading the pores with silver nanoparticles was demonstrated as well as their subsequent release in a model system.
Significance: The alumina micro-particles with interconnected nano-pores allow mechanical interlocking between fillers and matrix without the need for chemical bonding. This material is also promising for being made bio-active, after pore filling with different agents.
(Copyright © 2013 Elsevier Ltd. All rights reserved.)
فهرسة مساهمة: Keywords: Artificial ageing; Bending modulus; Biocompatibility; Drug delivery; Nanoporous fillers; Resin composites
المشرفين على المادة: 0 (Composite Resins)
0 (Dental Materials)
0 (Methacrylates)
0 (Polymethacrylic Acids)
059QF0KO0R (Water)
14I47YJ5EY (triethylene glycol dimethacrylate)
3M4G523W1G (Silver)
3WJQ0SDW1A (Polyethylene Glycols)
454I75YXY0 (Bisphenol A-Glycidyl Methacrylate)
LMI26O6933 (Aluminum Oxide)
O0V97PV2G1 (2-(dimethylamino)ethyl methacrylate)
تواريخ الأحداث: Date Created: 20131217 Date Completed: 20160412 Latest Revision: 20181202
رمز التحديث: 20221213
DOI: 10.1016/j.jdent.2013.12.001
PMID: 24333450
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-176X
DOI:10.1016/j.jdent.2013.12.001