2021年3月
PICN Nanocomposite as Dental CAD/CAM Block Comparable to Human Tooth in Terms of Hardness and Flexural Modulus
MATERIALS
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- 巻
- 14
- 号
- 5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3390/ma14051182
- 出版者・発行元
- MDPI
Polymer infiltrated ceramic network (PICN) composites are an increasingly popular dental restorative material that offer mechanical biocompatibility with human enamel. This study aimed to develop a novel PICN composite as a computer-aided design and computer-aided manufacturing (CAD/CAM) block for dental applications. Several PICN composites were prepared under varying conditions via the sintering of a green body prepared from a silica-containing precursor solution, followed by resin infiltration. The flexural strength of the PICN composite block (107.8-153.7 MPa) was similar to a commercial resin-based composite, while the Vickers hardness (204.8-299.2) and flexural modulus (13.0-22.2 GPa) were similar to human enamel and dentin, respectively. The shear bond strength and surface free energy of the composite were higher than those of the commercial resin composites. Scanning electron microscopy and energy dispersive X-ray spectroscopic analysis revealed that the microstructure of the composite consisted of a nanosized silica skeleton and infiltrated resin. The PICN nanocomposite block was successfully used to fabricate a dental crown and core via the CAD/CAM milling process.
- リンク情報
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- DOI
- https://doi.org/10.3390/ma14051182
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/33802326
- PubMed Central
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959134
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000628388000001&DestApp=WOS_CPL
- ID情報
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- DOI : 10.3390/ma14051182
- eISSN : 1996-1944
- PubMed ID : 33802326
- PubMed Central 記事ID : PMC7959134
- Web of Science ID : WOS:000628388000001