Mechanical properties of experimental dental composites containing a combination of mesoporous and nonporous spherical silica as fillers

Samuel, Solomon Praveen; Li, Shuxi; Mukherjee, Indraneil; Guo, Yi; Patel, Alpa; Baran, George R.; Wei, Yen

doi:10.1016/j.dental.2008.07.012

Cited by 151 publications

(112 citation statements)

References 21 publications

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“…Although the filler contents of the tested giomers, as reported by the manufacturer, are higher than those of the tested resin composites, there does not appear to be a clear relationship between flexural properties and filler content within each restorative category. Therefore, it can be speculated that the type of resin matrix, polymerization kinetics, and surface treatment of the filler may also contribute to the flexural properties of bulk-fill resin composites in the same manner as has been reported for conventional resin composites 27) . In addition, SEM observations of the polished low and high viscosity bulk-fill giomer and resin composite surfaces revealed that the size, shape and distribution of filler particles were different depending on the material.…”

Section: Discussionmentioning

confidence: 96%

Depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites

Tsujimoto

Barkmeier

Takamizawa

et al. 2017

Dental Materials Journal

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The purpose of this study was to investigate the depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites. Depth of cure and flexural properties were determined according to ISO 4049, and volumetric shrinkage was measured using a dilatometer. The depths of cure of giomers were significantly lower than those of resin composites, regardless of photo polymerization times. No difference in flexural strength and modulus was found among either high or low viscosity bulk fill materials. Volumetric shrinkage of low and high viscosity bulk-fill resin composites was significantly less than low and high viscosity giomers. Depth of cure of both low and high viscosity bulk-fill materials is time dependent. Flexural strength and modulus of high viscosity or low viscosity bulk-fill giomer or resin composite materials are not different for their respective category. Resin composites exhibited less polymerization shrinkage than giomers.

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Section: Discussionmentioning

confidence: 96%

Depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites

Tsujimoto

Barkmeier

Takamizawa

et al. 2017

Dental Materials Journal

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“…Composites are popular restorative materials because of their esthetics and direct-filling capabilities [2][3][4][5][6][7][8]. One main problem, however, is that composite tend to accumulate more biofilm than other restorative materials in vivo [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

Shamrani¹

2016

JDHODT

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Objective: The present study evaluated the micro-shear bond strength of a nano adhesive to dentin with different types of composite restorative systems. Materials and method:Thirty caries-free, freshly extracted human molar teeth were sliced to expose dentin. The dentin slices were randomly divided into three main groups (10 each) and bonding was done at three sites so as to create total 90 samples with 30 in each group. Group A: nanofilled Composite, Group B: Tetric EvoCeram Bulk fill and Group C: Sonic Fill Bulk fills composite. Adhesive (nano bond) was used for bonding in all the groups. After 24 hours of immersion in water at 37°C, then subjected to thermocycling, a micro-shear bond test was carried out. One way analysis of variance (ANOVA) and Tukey's tests were used for testing the significance between the means of tested groups (P value ≤ 0.05). Result:The mean micro-shear bond strength values for Groups A, B, C were 10.4, 13.85 and 17.16 MPa respectively. Conclusion:Sonic Fill Bulk fills composite and nano bond displayed the highest micro-shear bond strength to dentin.

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“…To establish and validate this property, Samuel et al (2009) investigated the use of mesoporous fillers in dental composites. They prepared experimental dental composites by blending mesoporous silica and nonporous spherical silica together and then evaluated the compressive modulus, compressive strength, flexural modulus and flexural strength of these composites.…”

Section: Nanofillersmentioning

confidence: 99%

Roles of Nanotechnological Approaches in Periodontal Disease Therapy

Aminu¹,

Chan²,

Toh³

2017

J App Pharm Sci

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Formulation scientists are faced with a great hurdle of delivering a therapeutic agent into the periodontal pockets because of the anatomical complexity of the route and the lesion's contours that often leads to poor penetration of the drug to the area. However, recent nanotechnology advancement and innovations through nanodentistry are increasingly providing a suitable solution for the treatment of many dental disorders including periodontal disease. These nanodentistry innovative approaches have vowed to revolutionize dental therapeutics by way of using nanomaterials, biotechnology, and nanorobotics, that can significantly influence and transform dental disease's diagnosis, prevention, and treatment. The advances have offered possibilities for providing highquality dental care to a vast number of people around the globe who are currently suffering from periodontal disease. Novel nanotechnology-based carriers and materials such as polymeric nanoparticles, nanogels, nanopores, nanotubes, scaffold matrices, nanoneedles, nanocrystals, quantum dots, nanofibers, and nanofillers have demonstrated promising efficacy and their roles in the disease therapy are of great significance. The aim of this review article is to provide important recent updates on the various nanotechnology-base approaches for periodontal disease therapy. The roles of these recently investigated approaches in the disease treatment are also covered in the review.

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Mechanical properties of experimental dental composites containing a combination of mesoporous and nonporous spherical silica as fillers

Cited by 151 publications

References 21 publications

Depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites

Depth of cure, flexural properties and volumetric shrinkage of low and high viscosity bulk-fill giomers and resin composites

An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

Roles of Nanotechnological Approaches in Periodontal Disease Therapy

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