PMID- 27063118 OWN - NLM STAT- MEDLINE DCOM- 20160930 LR - 20181202 IS - 1006-7248 (Print) IS - 1006-7248 (Linking) VI - 24 IP - 6 DP - 2015 Dec TI - [Sintering behavior of tooth-like yttria-stabilized tetragonal zirconia polycrystal by adding rare-earth oxide]. PG - 679-86 AB - PURPOSE: To investigate the influence on the sintering densification, microstructure and transformation behavior of tooth-like yttria-stabilized tetragonal zirconia polycrystal by adding rare-earth oxide as colorants. METHODS: Six kinds(S1,S2,S3,S4,S5,S6) of tooth-like yttria stabilized tetragonal zirconia polycrystal(Y-TZP)were made by introducing internal colorating technology, the relative density of sintered specimens was determined by the Archimedes method. Scanning electron microscope (SEM) was used to examine the surface morphology and determine the grain size. The phase identification of sintered samples was carried out by X-ray diffractometer. RESULTS: The relative density of the six kinds of tooth-like yttria stabilized tetragonal zirconia polycrystal were over 98%, through SEM images of the cross-sectional surfaces, the grain size of the six kinds of sintered composites were observed in a wide range from 100 nm to 300 nm, a second phase was not detected in the grain boundaries. The diffraction peaks of the main phase were observed as tetragonal phase. CONCLUSIONS: Tooth-like yttria-stabilized tetragonal zirconia polycrystal was acquired with better mechanical property by adding rare-earth oxide as colorants, and was available for clinical application. FAU - Gao, Yan AU - Gao Y AD - Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China. E-mail:drgaoyan@gmail.com. FAU - Zhang, Fu-qiang AU - Zhang FQ AD - Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China. FAU - Gao, Jian-hua AU - Gao JH AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences. Shanghai 200050,China. LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Shanghai Kou Qiang Yi Xue JT - Shanghai kou qiang yi xue = Shanghai journal of stomatology JID - 101090220 RN - 0 (Metals, Rare Earth) RN - 0 (Oxides) RN - 12001-21-7 (Dental Porcelain) RN - 58784XQC3Y (Yttrium) RN - C6V6S92N3C (Zirconium) RN - S38N85C5G0 (zirconium oxide) RN - X8071685XT (yttria) SB - IM MH - Cross-Sectional Studies MH - *Dental Porcelain MH - *Dental Stress Analysis MH - Materials Testing MH - Metals, Rare Earth/*chemistry MH - Oxides MH - Yttrium/*chemistry MH - Zirconium/*chemistry EDAT- 2016/04/12 06:00 MHDA- 2016/10/01 06:00 CRDT- 2016/04/12 06:00 PHST- 2016/04/12 06:00 [entrez] PHST- 2016/04/12 06:00 [pubmed] PHST- 2016/10/01 06:00 [medline] PST - ppublish SO - Shanghai Kou Qiang Yi Xue. 2015 Dec;24(6):679-86.