Comparative investigation of tribological behavior of hybrid dental restorative composite materials

2021 ◽  
Author(s):  
Ramkumar Yadav ◽  
Anoj Meena
Keyword(s):  
Composite Materials ◽  
Tribological Behavior ◽  
Comparative Investigation ◽  
Dental Restorative

Tribological behavior of dental restorative composites in chewable tobacco environment

2020 ◽  
Vol 234 (10) ◽  
pp. 1106-1112
Author(s):  
Abhijeet S Suryawanshi ◽  
Niranjana Behera
Keyword(s):  
Composite Materials ◽  
Smokeless Tobacco ◽  
Tribological Behavior ◽  
Artificial Saliva ◽  
Wear Test ◽  
Dental Composite ◽  
Loading Conditions ◽  
Wear Properties ◽  
Pin On Disk ◽  
Dental Restorative

This study investigates the effect of smokeless tobacco on the tribological properties of two commercially used dental composite materials: Tetric N-Ceram and Z350 Dentin shade. It is to evaluate the effect of smokeless tobacco on the wear properties of two dental composite materials after some stipulated period. The wear test was conducted on pin-on-disk tribometer in the presence of artificial saliva under different loading conditions of 10, 15 and 20 N. The pins of the dental composite material were immersed in tobacco solution. The tribological behavior was studied after 2 days, 3.5 days, 6 days, 15 days and 1 month which represented the real conditions for the contact of 1 week, 2 weeks, 1 month, 2 months and 5 months, respectively, between the dental material and the tobacco solution. Under different loading conditions, Z350 Dentin material exhibited much less wear than the Tetric N-Ceram material in the presence of synthetic saliva for the specimen with or without tobacco immersion. The microstructure of the pin surface was inspected using scanning electron microscopy.

Tribological Behavior of Composite Materials - A Review

2010 ◽  
Vol 1 (2) ◽  
pp. 123-128
Author(s):  
Mohammad A. Chowdhury ◽  
Dewan M. Nuruzzaman ◽  
Mohammad L. Rahaman
Keyword(s):  
Composite Materials ◽  
Tribological Behavior

scholarly journals Effect of Tooth Brushing on Wear of Microhybrid Composites In vitro experiment

2019 ◽  
Vol 56 (3) ◽  
pp. 583-567
Author(s):  
Csaba Dudas ◽  
Melinda Szekely ◽  
Maria Henrietta Gabor ◽  
Laszlo Jakab Farkas ◽  
Kinga Dorner ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Materials ◽  
In Vitro Study ◽  
Numerical Data ◽  
Tooth Brushing ◽  
Distilled Water ◽  
Average Roughness ◽  
Dental Restorative ◽  
Composite Samples

Changes in the surface roughness of dental restorative materials after tooth brushing are inevitable. The abrasion is known to increase the possibility of dental plaque accumulation which is responsible for several pathologies of the oral cavity. The aim of this in vitro study was to evaluate the changes of surface roughness of microhybrid composite materials produced by different toothbrushes with and without toothpaste. Forty-eight specimens of two composite materials (Charisma and Super-Cor) were prepared using a silicone template according to the manufacturer�s instructions. Each sample was brushed for eight hours. Each group of specimens was divided in two subgroups: half of the samples were brushed using only distilled water and the other half with a mixture of distilled water and toothpaste (Colgate Total; ratio 1:1). The average roughness value (Ra) of surfaces were measured with profilometer three times: the initial measurement was performed before starting the toothbrush simulation, the second was after 4 hours and the third was after 8 hours of brushing. Three different bristle stiffness toothbrush heads were used (medium sensitive, medium and soft). After collecting all numerical data one-way ANOVA and Friedman tests were performed for statistical analysis. All examined microhybrid composites exhibited changes in surface roughness after the toothbrush simulation. The simulation of toothbrushing without toothpaste, only with water as cleaning substrate, showed at every measurement the lowest values of roughness in all three toothbrush heads. Significantly increase of mean Ra values were observed in both tested composite samples when medium and soft toothbrushes with toothpaste were used. The surface roughness changes of tested microhybrid composites depend on the brushing procedure. The toothpaste has a much greater effect on the abrasion than the type of toothbrush.

Fabrication and characterization of micro alumina zirconia particulate filled dental restorative composite materials

2021 ◽  
Author(s):  
Anoj Meena ◽  
Diksha Bisht ◽  
Ramkumar Yadav ◽  
Sonu Saini ◽  
Govind Sharan Dangayach ◽  
...  
Keyword(s):  
Composite Materials ◽  
Fabrication And Characterization ◽  
Dental Restorative

BisGMA analogues as monomers and diluents for dental restorative composite materials

2018 ◽  
Vol 88 ◽  
pp. 25-31 ◽  
Author(s):  
Rohit Srivastava ◽  
Jianhong Liu ◽  
Chuanxin He ◽  
Yuyu Sun
Keyword(s):  
Composite Materials ◽  
Dental Restorative

The Influence of Selected Powder Fillers on the Tribological Properties of Composite Materials for Dental Fillings

2008 ◽  
Vol 144 ◽  
pp. 33-38 ◽  
Author(s):  
Joanna Mystkowska ◽  
Jan Ryszard Dąbrowski
Keyword(s):  
Composite Materials ◽  
Tribological Properties ◽  
Tribological Behavior ◽  
Organic Matrix ◽  
Friction Modifiers ◽  
Dental Fillings ◽  
Ptfe Composite ◽  
Materials Used ◽  
Glass Fillers ◽  
Wear Tests

The aim of this study was to determine the influence of powder fillers on the tribological properties of composite materials used for dental fillings. The investigated composites contain a fluoridated filler (based on Ba-Sr-Al-P-Na-silicate glass fillers) as a fluoride source as well as different powder fillers (friction modifiers) e.g. silicon nitride (Si3N4), boron nitride (BN), polyethylene (PE), polytetrafluoroethylene (PTFE). Composite disks were photo-cured and tested for wear against harder stainless-steel counterface. Wear tests were carried out by means of special tribotester in the presence of phosphate buffer as a lubricant. Influence of the load and filler contents on the friction coefficients and wear were estimated. The interaction between the filler particles and organic matrix and its influence on the tribological behavior of prepared specimens were observed. Organic powder fillers (PE, PTFE) reduced the friction coefficient and the wear of tested composite materials for dental fillings. Inorganic friction modifiers (Si3N4, BN) did not exhibit this effect.

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