Accepted Article
Received Date : 11-Jun-2013 Accepted Date : 31-Aug-2013 Article type
: Original Scientific Article
Fabrication and characterisation of polymer composites for endodontic use
R A. Alhashimi1,2, F Mannocci 2, R Foxton1, S Deb2 1
Departments of Biomaterial, 2 Department of Conservative Dentistry, King’s College London
Dental Institute, Guy’s Hospital, London, UK.
Running title: Polyethylene-hydroxyapatite root filling material
Key words: Polyethylene-hydroxyapatite, melt-extrusion, tensile strength, stiffness, root canal filling material.
Corresponding author details: Professor Francesco Mannocci, Head of Endodontic Department, King’s College London Dental Institute, Floor 25, Tower Wing, Guy’s Hospital, London Bridge, London, SE1 9RT, UK, E-mail: [email protected]
Abstract Aim To develop a low density polyethylene-hydroxyapatite (HA-PE) composite with properties tailored to function as a potential root canal filling material. Methodology Hydroxyapatite and polyethylene mixed with strontium oxide as a radiopacifier were extruded in a single screw extruder fitted with an appropriate die to form fibres. The composition of the composite was optimized with clinical handling and placement in the
This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/iej.12192 This article is protected by copyright. All rights reserved.
Accepted Article
canal being the prime consideration. The fibres were characterised using Infrared spectroscopy (FTIR) and their thermal properties determined using differential scanning calorimetry (DSC). The tensile strength and elastic modulus of composite fibres and guttapercha were compared, dry and after 1 month storage in simulated body fluid (SBF), using a universal testing machine. The radiopacity of the fibres was determined using digital radiography. The interaction of the composites with eugenol was evaluated and compared with gutta-percha. Data of the tensile strengths were submitted to two-way ANOVA and Bonferroni tests (P
Received Date : 11-Jun-2013 Accepted Date : 31-Aug-2013 Article type
: Original Scientific Article
Fabrication and characterisation of polymer composites for endodontic use
R A. Alhashimi1,2, F Mannocci 2, R Foxton1, S Deb2 1
Departments of Biomaterial, 2 Department of Conservative Dentistry, King’s College London
Dental Institute, Guy’s Hospital, London, UK.
Running title: Polyethylene-hydroxyapatite root filling material
Key words: Polyethylene-hydroxyapatite, melt-extrusion, tensile strength, stiffness, root canal filling material.
Corresponding author details: Professor Francesco Mannocci, Head of Endodontic Department, King’s College London Dental Institute, Floor 25, Tower Wing, Guy’s Hospital, London Bridge, London, SE1 9RT, UK, E-mail: [email protected]
Abstract Aim To develop a low density polyethylene-hydroxyapatite (HA-PE) composite with properties tailored to function as a potential root canal filling material. Methodology Hydroxyapatite and polyethylene mixed with strontium oxide as a radiopacifier were extruded in a single screw extruder fitted with an appropriate die to form fibres. The composition of the composite was optimized with clinical handling and placement in the
This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/iej.12192 This article is protected by copyright. All rights reserved.
Accepted Article
canal being the prime consideration. The fibres were characterised using Infrared spectroscopy (FTIR) and their thermal properties determined using differential scanning calorimetry (DSC). The tensile strength and elastic modulus of composite fibres and guttapercha were compared, dry and after 1 month storage in simulated body fluid (SBF), using a universal testing machine. The radiopacity of the fibres was determined using digital radiography. The interaction of the composites with eugenol was evaluated and compared with gutta-percha. Data of the tensile strengths were submitted to two-way ANOVA and Bonferroni tests (P
