2011 Fiscal Year Final Research Report
Search of the relation between time-dependent degradation of zirconia-porcelain bond strength
| Project/Area Number |
22791910
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Prosthetic dentistry
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| Research Institution | Kanagawa Dental College |
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Principal Investigator |
AOKI Hiromichi 神奈川歯科大学, 歯学部, 非常勤講師 (50350533)
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| Project Period (FY) |
2010 – 2011
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| Keywords | ジルコニア / 陶材 / 紫外線 / 接着 |
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| Research Abstract |
Zirconia ceramics has been used to treat esthetic restoration.
However, chip-off fractures of porcelain was one of clinical failure with frequency.
The aim of this study was to evaluate the effect of time-dependent degradation of zirconia surface and porcelain adhesive strength. In addition, this study was to evaluate the influence of ultraviolet irradiation on the zirconia-porcelain bond strength. The atomic percentage of carbon continued to increase the zirconia surfaces time-dependent. Ultraviolet irradiation was decreased the atomic percentage of carbon on zirconia surface. Furthermore, zirconia-porcelain bond strength was increased by ultraviolet irradiation.
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