Highly-translucent, strong and aging-resistant 3Y-TZP ceramics for dental restoration by grain boundary segregation

被引：113

作者：

Zhang, Fei ^{[1
]}

Vanmeensel, Kim ^{[1
]}

Batuk, Maria ^{[2
]}

Hadermann, Joke ^{[2
]}

Inokoshi, Masanao ^{[3
]}

Van Meerbeek, Bart ^{[3
]}

Naert, Ignace ^{[3
]}

Vleugels, Jef ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Mat Engn, B-3001 Heverlee, Belgium

[2] Univ Antwerp, Elect Microscopy Mat Sci, B-2020 Antwerp, Belgium

[3] Univ Hosp Leuven, KU Leuven BIOMAT, Dept Oral Hlth Sci, KU Leuven & Dent, B-3000 Louvain, Belgium

来源：

ACTA BIOMATERIALIA | 2015年 / 16卷

关键词：

Ceramic structure; Dental restorative material; Zirconia; Aging; Translucency; LOW-TEMPERATURE DEGRADATION; ZIRCONIA CERAMICS; ALUMINA; STRENGTH; FRACTURE; TZP; SIZE;

D O I：

10.1016/j.actbio.2015.01.037

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Latest trends in dental restorative ceramics involve the development of full-contour 3Y-TZP ceramics which can avoid chipping of veneering porcelains. Among the challenges are the low translucency and the hydrothermal stability of 3Y-TZP ceramics. In this work, different trivalent oxides (Al2O3, Sc2O3, Nd2O3 and La2O3) were selected to dope 3Y-TZP ceramics. Results show that dopant segregation was a key factor to design hydrothermally stable and high-translucent 3Y-TZP ceramics and the cation dopant radius could be used as a controlling parameter. A large trivalent dopant, oversized as compared to Zr4+, exhibiting strong segregation at the ZrO2 grain boundary was preferred. The introduction of 0.2 mol% La2O3 in conventional 0.1-0.25 wt.% Al2O3-doped 3Y-TZP resulted in an excellent combination of high translucency and superior hydrothermal stability, while retaining excellent mechanical properties. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：215 / 222

页数：8

共 55 条

[11] In vitro performance of full-contour zirconia single crowns [J].

Beuer, Florian ;

Stimmelmayr, Michael ;

Gueth, Jan-Frederik ;

Edelhoff, Daniel ;

Naumann, Michael .

DENTAL MATERIALS, 2012, 28 (04) :449-456

[12] Optical properties of CAD-CAM ceramic systems [J].

Bona, Alvaro Della ;

Nogueira, Audrea D. ;

Pecho, Oscar E. .

JOURNAL OF DENTISTRY, 2014, 42 (09) :1202-1209

[13] Dopant segregation and space charge effect in nanostructured tetragonal zirconia [J].

Boulc'h, F ;

Djurado, E ;

Dessemond, L .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (08) :A1210-A1215

[14] Translucency and biaxial flexural strength of four ceramic core materials [J].

Chen, Ya-Ming ;

Smales, Roger J. ;

Yip, Kevin H. -K. ;

Sung, Wei-Jia .

DENTAL MATERIALS, 2008, 24 (11) :1506-1511

[15] What future for zirconia as a biomaterial? [J].

Chevalier, J .

BIOMATERIALS, 2006, 27 (04) :535-543

[16]

Chevalier J, 1999, J AM CERAM SOC, V82, P2150

[17] State of the art of zirconia for dental applications [J].

Denry, Isabelle ;

Kelly, J. Robert .

DENTAL MATERIALS, 2008, 24 (03) :299-307

[18] Effect of grain size on mechanical properties of submicrometer 3Y-TZP:: Fracture strength and hydrothermal degradation [J].

Eichler, Jens ;

Roedel, Juergen ;

Eisele, Ulrich ;

Hoffman, Mark .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (09) :2830-2836

[19] PHASE ANALYSIS IN ZIRCONIA SYSTEMS [J].

GARVIE, RC .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1972, 55 (06) :303-&

[20] CERAMIC STEEL [J].

GARVIE, RC ;

HANNINK, RH ;

PASCOE, RT .

NATURE, 1975, 258 (5537) :703-704

← 1 2 3 4 5 6 →