Publication: Development of silicon nitride ceramic for CAD/CAM restoration
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Issued Date
2020
Resource Type
File Type
application/pdf
ISSN
2874547
Other identifier(s)
2-s2.0-85089123434
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Dental Materials Journal. Vol 39, No.4 (2020), p.633-638
Suggested Citation
Krajangta N., Sarinnaphakorn L., Didron P.P., Wasanapiarnpong T. Development of silicon nitride ceramic for CAD/CAM restoration. Dental Materials Journal. Vol 39, No.4 (2020), p.633-638. doi:10.4012/dmj.2019-119 Retrieved from: https://hdl.handle.net/20.500.14740/4863
Abstract
White Silicon nitride (Si3N4) ceramic has unique characteristics. Because of its high fracture toughness, strength, and biocompatibility, it can therefore be used to fabricate dental restorations. The purpose of this study was to produce partially-sintered block of Si3N4 for fabrication of CAD/CAM dental restorations. The related properties of this novel Si3N4 were evaluated including sintered shrinkage, flexural strength and fracture toughness. Partially sintered Si3N4 ceramic blocks were prepared by heating at 1,400°C for 2 h under N2 gas. After full sintering at 1,650oC for 2 h, the linear shrinkage value was recorded at 19.88±0.56%. The flexural strength and fracture toughness were measured, the results were 891.21±37.25 MPa and 6.33±0.30 MPa•m1/2, respectively. These results showed that flexural strength and fracture toughness of Si3N4 were more than 800 MPa and 5 MPa•m1/2, the white Si3N4 developed in this study can be used to fabricate multi-unit dental restorations According to ISO 6872. © 2020, Japanese Society for Dental Materials and Devices. All rights reserved.
Subject(s)
Bending strength
Biocompatibility
Ceramic materials
Computer aided design
Filling
Nitrides
Restoration
Shrinkage
Silicon nitride
Sintering
Cad/cams
Ceramic blocks
Dental restorations
Linear shrinkage
Multi-unit
Silicon nitride ceramics
Fracture toughness
Dental porcelain
Silicon derivative
Silicon nitride
Ceramics
Computer aided design
Materials testing
Surface property
Ceramics
Computer-Aided Design
Dental Porcelain
Flexural Strength
Materials Testing
Silicon Compounds
Surface Properties
Biocompatibility
Ceramic materials
Computer aided design
Filling
Nitrides
Restoration
Shrinkage
Silicon nitride
Sintering
Cad/cams
Ceramic blocks
Dental restorations
Linear shrinkage
Multi-unit
Silicon nitride ceramics
Fracture toughness
Dental porcelain
Silicon derivative
Silicon nitride
Ceramics
Computer aided design
Materials testing
Surface property
Ceramics
Computer-Aided Design
Dental Porcelain
Flexural Strength
Materials Testing
Silicon Compounds
Surface Properties