Preparation and property analysis of a novel dental lithium disilicate glass-ceramic / 实用口腔医学杂志
Journal of Practical Stomatology
; (6): 323-326, 2015.
Article
em Zh
| WPRIM
| ID: wpr-464843
Biblioteca responsável:
WPRO
ABSTRACT
Objective:To prepare a novel dental lithium disilicate glass-ceramic,and to study its properties.Methods:A2 colored novel glass-ceramic was prepared by sintering technique.The flexural strength,density,elastic modulus,hardness,fracture toughness, translucency and microstructure of the novel glass-ceramic and IPS e.max Press (LT A2,MO1 and HO1 )ceramic ingots were studied. Results:The novel glass-ceramic demonstrated a lower flexural strength (31 5 MPa)than MO ceramic ingot(338 MPa)(P 0.05).The translu-cency parameter of the novel glass-ceramic(21 .2)was higher than that of HO(1 6.5)but lower than that of LT(27.8)and MO(27.5) ceramic ingots(P <0.05).SEMimages showed an interlocking microstructure of rod-shaped Li2 Si2 O5 crystals in all the glass-ceramics investigated.Conclusion:The mechanical properties,translucency and microstructure of the novel glass-ceramic are similar to those of IPS e.max Press ceramic ingots,which can meet the requirements of clinical application.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Journal of Practical Stomatology
Ano de publicação:
2015
Tipo de documento:
Article