The influence of montmorillonite clay reinforcement on the performance of a glass ionomer restorative.

Journal of Dentistry
Adam H DowlingGarry J P Fleming

Abstract

A pristine calcium montmorillonite (Ca-MMT) and an organically modified 12-amino-dodecanoicacid treated montmorillonite (ADA-MMT) clay were evaluated to determine the reinforcement effect on the performance of a glass ionomer (GI) restorative ChemFil Superior (Dentsply DeTrey, Kanstanz, Germany) to assess the potential as a posterior filling material. Mean compressive fracture strengths and standard deviations were determined for groups of 30 cylindrical specimens with 0.5-2.5 wt.% Ca-MMT and ADA-MMT additions to either the powder or the liquid elements of the GI. Working characteristics were assessed using an oscillating rheometer, the interlayer d-spacings (d(001)) of each MMT clay was determined using X-ray diffraction (XRD) and the set cement structure was determined by scanning electron microscopy (SEM). The addition of up to 1.0 wt.% ADA-MMT resulted in a significant increase in the mean compressive fracture strength of the GI utilising the one-way ANOVA and Tukey test comparisons at P<0.05. When Ca-MMT clay was added to the GI a significant reduction in mean strength was recorded (P<0.05). MMT clay addition to the powder and liquid element of the GI in excess of 1.0 wt.% resulted in no significant differences in working ...Continue Reading

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Citations

Aug 6, 2013·Journal of Dentistry·Jieqiong HuYake Wang
Oct 1, 2013·Journal of Materials Science. Materials in Medicine·Muhammad A Fareed, Artemis Stamboulis
Sep 12, 2014·International Journal of Biomaterials·Muhammad A Fareed, Artemis Stamboulis
Dec 17, 2014·European Journal of Dentistry·Muhammad A Fareed, Artemis Stamboulis
Oct 23, 2009·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Maria Giovanna GandolfiCarlo Prati
Jan 8, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Adam H Dowling, Garry J P Fleming
Nov 12, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Sufyan GaroushiLippo Lassila
Jan 30, 2020·European Journal of Oral Sciences·Sufyan GaroushiLippo Lassila
Jun 15, 2017·International Journal of Biomaterials·Daniela Dellosso CibimKamila Rosamilia Kantovitz
Jun 4, 2020·Materials·John W NicholsonBeata Czarnecka
Aug 8, 2018·Acta Biomaterialia Odontologica Scandinavica·Sufyan K GaroushiLippo V J Lassila
Sep 13, 2014·Primary Dental Journal·Garry J P Fleming

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