2016 Fiscal Year Final Research Report
Development of thin apatite coated zirconia implant
| Project/Area Number |
15K20492
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Dental engineering/Regenerative dentistry
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| Research Institution | Tsurumi University |
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Principal Investigator |
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| Research Collaborator |
HAYAKAWA Tohru
SATO Mitsunobu
MOCHIZUKI Chihiro
TOYAMA Takeshi
MIZUTANI Masayoshi
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | ジルコニア / インプラント / 表面改質 / アパタイトコーティング / 骨形成 / スクラッチ試験 / ナノパルスレーザ |
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| Outline of Final Research Achievements |
In order to establish a zirconia implant system for good bone response, the aim of the present study was to evaluate thin carbonate-containing hydroxyapatite (CA) film coated yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) using a molecular precursor method. The CA film was deposited on the surface of Y-TZP using a molecular precursor solution, which was a mixture of a calcium-EDTA complex and phosphate compounds. Scratch test and AFM analysis suggested that CA film on Y-TZP was strongly adhered. Moreover, four different heating conditions in firing CA―namely, 600℃-2 hr, 800℃2-hr, 1000℃-2 hr, and 600℃-4 hr―were applied. It was suggested that properties of CA coating on Y-TZP were influenced to crystalline by the heating temperature and time. Nanosecond-pulsed laser processing technique to Y-TZP was applied to generate a surface microgrooves, and evaluating its behavior in rat femur. Bone-to-implant contact ratio was higher for laser treated Y-TZP implants.
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| Free Research Field |
歯科理工学
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