Effect of Excimer UV lamp radiation on titanium modified by Wire-type EDM
| Project/Area Number |
25463019
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Prosthodontics/ Dental materials science and
|
|---|
| Research Institution | Showa University |
|---|
Principal Investigator |
Kataoka Yu 昭和大学, 歯学部, 助教 (90527300)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHIBATA Yo 昭和大学, 歯学部, 講師 (30327936)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
|---|
| Keywords | チタン / ワイヤ放電加工 / エキシマUVランプ / ナノインデンテーション / エキシマランプ / 紫外線 / 酸化膜 / インプラント / エキシマ |
|---|
| Outline of Final Research Achievements |
The purpose of this study is to investigate the surface characteristics and biocompatibility of titanium (Ti) surfaces modified by wire electrical discharge machining (EDM). EDM surface characteristics were evaluated by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), thin-film X-ray diffractometry (XRD) and contact angle measurements. The bone substance were evaluated by nano-indentation test. EDM surfaces exhibited high super hydrophilicity, due to high surface energy. XPS and XRD revealed that a passive oxide layer with certain developing thickness onto. EDM surfaces promoted cell attachment, but restrained proliferation. Real-time PCR analyses showed significantly higher relative mRNA expression levels of osteoblastic genes in cells cultured on the EDM surfaces as compared to cells cultured on the machined surfaces and the bone substance on the EDM surfaces was equivalent to cortical bone.
|
Report
(4 results)
Research Products
(13 results)
