Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/430
Title: Design and evaluation of alumina/feldspar resin infiltrated dental composite materials
Authors: Le Roux, Andre Rayne
Keywords: Dental bonding
Issue Date: 2008
Abstract: 
Introduction: Incorporating a feldspar chemical bond between alumina filler particles is expected to increase the wear resistant and flexural strength properties, while reducing flexibility of dental composites. Aims and Objectives: An investigation was carried out to evaluate the influence of the feldspar chemical bonding between alumina filler particles on wear, flexural strength and flexibility of experimental alumina/feldspar dental composites. It was hypothesized that wear resistance and flexural strength would be significantly increased with increased feldspar mass, while flexibility was expected to decrease. Methods: Alumina was chemically sintered and bonded with 30%, 40%, 50% and 60% feldspar mass, silanized and infiltrated with UDMA resin to prepare the dental restorative composite material specimens. Results and conclusions: Significantly higher wear resistant characteristics resulted with increased feldspar mass (p<0.5). Improvements in flexural strength characteristics as the feldspar mass was increased was not statistically different (p>0.5). Flexibility characteristics as the feldspar mass was increased was not statistically different (p>0.5). The alumina/feldspar specimens showed lower flexibility (mm displacement) than SR ADORO (p<0.05). Feldspar chemical bonding between the alumina particles may improve on the wear resistance and Flexibility of alumina/feldspar composites when compared to SR ADORO. This study evaluated the influence of a chemical feldspar bond between alumina filler particles.
Description: 
Submitted in fulfillment of the degree of Doctor of Dental Material Science in the Durban University of Technology,
Durban, South Africa, 2008.
URI: http://hdl.handle.net/10321/430
DOI: https://doi.org/10.51415/10321/430
Appears in Collections:Theses and dissertations (Health Sciences)

Files in This Item:
File Description SizeFormat
LeRoux_2008.pdf2.83 MBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s) 20

1,157
checked on Jul 16, 2024

Download(s) 20

1,423
checked on Jul 16, 2024

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.