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Dental restorative materials with high mechanical properties and biocompatible performances are promising. In this work, polymer-infiltrated-ceramic-network materials (PICNs) were fabricated via infiltrating polymerizable monomers into porous ceramic networks and incorporated with hydroxyapatite nano-powders. Our results revealed that the flexural strength can be enhanced up to 157.32 MPa, and elastic modulus and Vickers hardness can be achieved up to 19.4 and 1.31 GPa, respectively, which are comparable with the commercial computer-aided design and computer-aided manufacturing (CAD/CAM) blocks. Additionally, the adhesion and spreading of rat bone marrow mesenchymal stem cells (rBMSCs) on the surface of such materials can be improved by adding hydroxyapatite, which results in good biocompatibility. Such PICNs are potential applicants for their application in the dental restoration.


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Mechanical and biocompatible properties of polymer-infiltrated- ceramic-network materials for dental restoration

Show Author's information Bencang CUIaRanran ZHANGaFengbo SUNaQian DINGbYuanhua LINa( )Lei ZHANGbCewen NANa
School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Department of Prosthodontics, School and Hospital of Stomatology, Peking University, Beijing 100081, China

Abstract

Dental restorative materials with high mechanical properties and biocompatible performances are promising. In this work, polymer-infiltrated-ceramic-network materials (PICNs) were fabricated via infiltrating polymerizable monomers into porous ceramic networks and incorporated with hydroxyapatite nano-powders. Our results revealed that the flexural strength can be enhanced up to 157.32 MPa, and elastic modulus and Vickers hardness can be achieved up to 19.4 and 1.31 GPa, respectively, which are comparable with the commercial computer-aided design and computer-aided manufacturing (CAD/CAM) blocks. Additionally, the adhesion and spreading of rat bone marrow mesenchymal stem cells (rBMSCs) on the surface of such materials can be improved by adding hydroxyapatite, which results in good biocompatibility. Such PICNs are potential applicants for their application in the dental restoration.

Keywords:

dental restoration, hydroxyapatite, polymer-infiltrated-ceramic-network materials (PICNs), mechanical property, biocompatible performance
Received: 11 April 2019 Revised: 26 May 2019 Accepted: 08 June 2019 Published: 05 February 2020 Issue date: February 2020
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Publication history
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Publication history

Received: 11 April 2019
Revised: 26 May 2019
Accepted: 08 June 2019
Published: 05 February 2020
Issue date: February 2020

Copyright

© The author(s) 2019

Acknowledgements

This work was financially supported by Beijing Municipal Science & Technology Commission (No of China. Z171100002017009) and National Natural Science Foundation of China (Grant No. 81671026).

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