Scanning electron microscopy observation of the growth of osteoblasts on Ti-24Nb-4Zr-8Sn modified by micro-arc oxidation and alkali-heat treatment and implant-bone interface
10.3760/cma.j.issn.1002-0098.2011.01.016
- VernacularTitle:微弧氧化-碱热处理后钛铌锆锡合金种植体-骨界面的扫描电镜观察
- Author:
Xue HAN
1
;
Hong-Chen LIU
;
Dong-Sheng WANG
;
Shu-Jun LI
;
Rui YANG
Author Information
1. 解放军总医院
- Keywords:
Titanium;
Microscopy,electron,scanning;
Micro-arc oxidation;
alkali-heat treatment
- From:
Chinese Journal of Stomatology
2011;46(1):50-53
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the efficacy of micro-arc oxidation and alkali-heat treatment (MAH) on Ti-24Nb-4Zr-8Sn(Ti2448). Methods Disks( diameter of 14. 5 mm, thickness of 1 mm) and cylinders (diameter of 3 mm, height of 10 mm) were fabricated from Ti2448 alloy. Samples were divided into three groups: polished( Ti2448 ), micro-arc oxidation( MAO-Ti2448 ), micro-arc oxidation and alkali-heat treatment(MAH-Ti2448). MC3T3-E1 osteoblastic cells were cultured on the disks and cell morphology was observed with scanning electron microscopy(SEM) aftre 3 days. The cylinder samples were implanted in the tibia of dogs and implant-bone interface was observed with SEM after 3 months. Results A rough and porous structure was shown in both MAO and MAH group. The MC3T3-E1 cells on the MAH-Ti2448 discs spread fully in intimate contact with the underlying coarse surface through active cytoskeletal extentions.Osseointegration was formed in the implant-bone interface in MAH samples. Conclusions MAH treatment can provide a more advantageous Ti2448 surface to osteoblastic cells than MAO treatment does, and the former can improve the implant-bone integration.
