Journal of Prosthodontic Research
Online ISSN : 1883-9207
Print ISSN : 1883-1958
ISSN-L : 1883-1958
Original Articles
Biaxial flexural strength and translucent characteristics of dental lithium disilicate glass ceramics with different translucencies
Fu WangTao YuJihua Chen
著者情報
ジャーナル オープンアクセス

2019 年 64 巻 1 号 p. 71-77

詳細
抄録

Purpose: The aim of this study was to evaluate the biaxial flexural strength and translucent characteristics of dental lithium disilicate glass ceramics with different translucencies.

Methods: Two heat pressed lithium disilicate glass ceramics (IPS e.max Press and an experimental ceramic) and one computer aided design/ computer aided manufacture (CAD/CAM) lithium disilicate glass ceramic (IPS e.max CAD) with different translucencies were evaluated. Disk-shaped specimens of each group were subjected to a biaxial flexural strength (BFS) test. Translucent parameters (TP) were also tested at 0.5 mm and 1.0 mm thickness, respectively. X-ray diffraction (XRD) and SEM were used for crystalline and microstructural analysis.

Results: BFS values of two heat pressed lithium disilicate glass ceramics were significantly higher than the CAD/CAM counterpart. No difference in BFS between two heat pressed glass ceramic was found. There were significant differences in BFS and TP values among the tested subgroups with different translucencies for IPS e.max Press and IPS e.max CAD. No difference in crystalline composition was found among the tested glass ceramics, but microstructure with shorter and wider crystal was revealed for IPS e.max CAD ceramics.

Conclusions: Lithium disilicate glass ceramics with different translucencies demonstrated different BFS and TP values.

著者関連情報

この記事は最新の被引用情報を取得できません。

© 2019 Japan Prosthodontic Society

This is an open-access article distributed under the terms of Creative Commons Attribution License 4.0 (CCBY 4.0), which allows users to distribute and copy the material in any format so long as attribution is given to the Japan Prosthodontic Society.
https://creativecommons.org/licenses/by/4.0/
前の記事 次の記事
feedback
Top