Effect of adding nanoalumina and marble dust powder on the physical, mechanical, and thermo‐mechanical characterization of dental composite

In this study, dental composites were fabricated by adding different weight percentages of nanoalumina (5–20 wt%) and marble dust powder (5–20 wt%) in the base monomer system comprised of Bisphenol‐A glycidyl methacrylate, Tri‐ethylene glycol dimethacrylate, Camphorquinone, and Dimethyl Amino Ethyl...

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Bibliographic Details
Published in:Polymer composites 2018-04, Vol.39 (S1), p.E321-E331
Main Authors: Meena, Anoj, Mali, Harlal Singh, Patnaik, Amar, Kumar, Shiv Ranjan
Format: Article
Language:English
Subjects:
Compressive strength
Dental cement
Dental materials
Dust
Dynamic mechanical analysis
Ethylene glycol
Gravimetric analysis
Hardness
Marble
Mechanical properties
Polymers
Storage modulus
Thermal stability
Thermodynamic properties
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Summary:In this study, dental composites were fabricated by adding different weight percentages of nanoalumina (5–20 wt%) and marble dust powder (5–20 wt%) in the base monomer system comprised of Bisphenol‐A glycidyl methacrylate, Tri‐ethylene glycol dimethacrylate, Camphorquinone, and Dimethyl Amino Ethyl Methacrylate. Physical and mechanical characterizations such as void content test, Micro‐hardness test, Compressive strength, Dynamic mechanical analysis (DMA), and thermo‐gravimetric analysis were performed to evaluate/compare the contribution of each of the nanoalumina and marble dust powder to the performance of dental composite. The result of experiment was indicated that by the addition of 5 wt% of nanoalumina increased the hardness and compressive strength by 88.46% and 23.25% whereas addition of 5 wt% of marble powder increased the hardness and compressive strength by 51.27% and 21.2%, respectively. DMA results revealed that addition of nanoalumina up to 20 wt% increased the storage modulus by 112.2%, whereas, the addition of marble powder up to 20 wt% increased the storage modulus by 191.2%. The thermal stability of dental composite was decreased with the addition of nanoalumina from 0 to 20 wt% and increased with the addition of marble dust powder from 0 to 20 wt%. Finally, it can be concluded that apart from economical aspect, marble dust powder filled dental composite also exhibited better thermo‐mechanical and thermal properties than that of nanoalumina filled dental composite. POLYM. COMPOS., 39:E321–E331, 2018. © 2016 Society of Plastics Engineers
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.24131