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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 / 中华口腔医学杂志
Chinese Journal of Stomatology ; (12): 50-53, 2011.
Article in Chinese | WPRIM | ID: wpr-339806
ABSTRACT
<p><b>OBJECTIVE</b>To observe the efficacy of micro-arc oxidation and alkali-heat treatment (MAH) on Ti-24Nb-4Zr-8Sn (Ti2448).</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSIONS</b>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.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Osteoblasts / Oxidation-Reduction / Prostheses and Implants / Surface Properties / General Surgery / Tibia / Microscopy, Electron, Scanning / Cells, Cultured / Chemistry / Osseointegration Limits: Animals Language: Chinese Journal: Chinese Journal of Stomatology Year: 2011 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Osteoblasts / Oxidation-Reduction / Prostheses and Implants / Surface Properties / General Surgery / Tibia / Microscopy, Electron, Scanning / Cells, Cultured / Chemistry / Osseointegration Limits: Animals Language: Chinese Journal: Chinese Journal of Stomatology Year: 2011 Type: Article