Modeling based experimental investigation on polymerization shrinkage and micro-hardness of nano alumina filled resin based dental material

Pratap, Bhanu; Gupta, Ravi Kant; Bhardwaj, Bhuvnesh; Nag, Meetu

doi:10.1016/j.jmbbm.2019.06.026

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…There are various factors which affects the polymerization process of resin based composites such as composition of RBCs, curing mode, light curing time, increment thickness, light curing units used, post-irradiation time, cavity diameter and its location, distance of light curing tip from surface, substrate used, type of filler, and temperature. Increased filler-matrix ratio leads to progressive fall of degree of conversion as filler particles acts as obstacle in chain propagation of polymers [38]. Filler's light permeability, monomer composition, initiator concentration and co-initiator/inhibitor system of RBCs also affects its depth of cure and hence, degree of conversion significantly [39].…”

Section: Polymerization Of Resin Matrixmentioning

confidence: 99%

“…It is quite challenging to draw a clear conclusion about the effect of various resin monomers, filler particles on the performance characteristics of dental composites from these studies because most of the studies were carried out to study few physical properties by varying one parameter. Assessment of more number of performance characteristics with varying input parameters for the development of resin based dental materials can be studied with implementation of design of experiment (DOE) [38,110] techniques. Various factors affecting polymerization are of key importance in RBCs.…”

Section: Future Perspectives and Conclusionmentioning

confidence: 99%

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Resin based restorative dental materials: characteristics and future perspectives

Pratap

Gupta

Bhardwaj

et al. 2019

Japanese Dental Science Review

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192

169

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This review article compiles the characteristics of resin based dental composites and an effort is made to point out their future perspectives. Recent research studies along with few earlier articles were studied to compile the synthesis schemes of commonly used monomers, their characteristics in terms of their physical, mechanical and polymerization process with selectivity towards the input parameters of polymerization process. This review covers surface modification processes of various filler particles using silanes, wear behaviour, antimicrobial behaviour along with its testing procedures to develop the fundamental knowledge of various characteristics of resin based composites. In the end of this review, possible areas of further interests are pointed out on the basis of literature review on resin based dental materials.

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Section: Polymerization Of Resin Matrixmentioning

confidence: 99%

Section: Future Perspectives and Conclusionmentioning

confidence: 99%

Resin based restorative dental materials: characteristics and future perspectives

Pratap

Gupta

Bhardwaj

et al. 2019

Japanese Dental Science Review

Self Cite

192

169

View full text Add to dashboard Cite

show abstract

“…The void content for the dental composites AZDC2, AZDC4, and AZDC6, containing 6 wt% of micro alumina and 2, 4, and 6 wt% of micro zirconia, was found to be 0.43%, 0.78%, and 0.91%, respectively. [ 30 ]…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2021

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Composite resin is quickly becoming the most extensively utilized material in the field of cosmetic and restorative dentistry. It eliminates the problem of poisonous nature caused by the amalgam's mercury content. This research article is based on the outcome of adding micro‐alumina and zirconia particulates filled dental composites on the physical properties, mechanical properties, and wear analysis. Three dental composites named AZDC2, AZDC4, and AZDC6, were prepared. Alumina microparticles were constant (6 wt%) while zirconia microparticles were varying (2, 4, and 6 wt%). Two‐body wear was performed on pin‐on‐disc friction & wear test rig under dry sliding for all three dental composites under different normal load (20, 40, and 60 N) and sliding speed (10, 15, and 20 mm/s). The experiments were designed as per L9 Taguchi orthogonal array. The least volumetric wear was found in AZDC6 dental composite under a sliding velocity of 15 mm/s and a normal load of 20 N. From the ANOVA analysis, normal load and filler content were the significant factors affecting the volumetric wear with a significance level 5%, respectively. Dental composite AZDC6 exhibited maximum compressive strength (451.49 MPa). Micro hybrid particulates‐filled dental composites improve physical and mechanical characterization.

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“…However, the main disadvantage of this resin system is the high curing shrinkage (up to 15%) [6,7]. Its shrinkage could be enhanced by three pathways such as the following: (i) by selecting components (with suitable structure), (ii) by increasing the curing density, and (iii) by using fillers [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Study on Microstructure and Properties of the UV Curing Acrylic Epoxy/SiO2 Nanocomposite Coating

Nguyen

Dang

Nguyen

et al. 2021

Journal of Nanomaterials

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This study is aimed at exploring the effects of SiO2 nanoparticles on the crosslinking and mechanical and thermal properties of UV curing acrylic epoxy coating. The curing polymerization process and thermal and mechanical properties of UV-curable acrylate epoxy system have been evaluated with or without the presence of SiO2 nanoparticles. To fabricate the UV curing acrylic epoxy/SiO2 nanocomposite coating, nano-SiO2 particles (0.5–5 wt.% by weight of resin) were added in the photo-curable system using sonication for 3 h. Various techniques for characterization have been used, such as FESEM (field emission scanning electron microscope), FTIR (Fourier-transform infrared spectroscopy), TGA (thermogravimetry analysis), gel fraction, and swelling degree analyses. FESEM data indicated that at the content of 2.5 wt.%, nanosilica was homogeneously dispersed in the coating procedure. However, once added 5 wt.%, large aggregation portions were found inside the coating matrices. Surprisingly, nano-SiO2 could play dual roles, as both UV absorbers and nanoreinforcers, in this nanocomposite coating. Besides, data from FTIR, gel fraction, and swelling degree analyses confirmed the role of SiO2 nanoparticles as UV absorbers that reduced the conversion performance of acrylate double bonds, thus increased slightly the swelling degree of coating. In addition, incorporation of SiO2 nanoparticles (as nanofillers, at content of 2.5 wt.%) in the polymer matrix enhanced significantly the abrasion resistance and thermal stability of the coating, by 60% (from 98.3 to 158.4 lite/mil) and 9°C (from 348°C to 357°C), respectively.

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Modeling based experimental investigation on polymerization shrinkage and micro-hardness of nano alumina filled resin based dental material

Cited by 18 publications

References 22 publications

Resin based restorative dental materials: characteristics and future perspectives

Resin based restorative dental materials: characteristics and future perspectives

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

Study on Microstructure and Properties of the UV Curing Acrylic Epoxy/SiO2 Nanocomposite Coating

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