| Project/Area Number |
15K15715
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Prosthodontics/ Dental materials science and
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| Research Institution | Showa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
荻野 玲奈 (田中玲奈) 昭和大学, 歯学部, 助教 (80585779)
片岡 有 昭和大学, 歯学部, 講師 (90527300)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | エキシマランプ / 光照射 / 歯質 / 象牙質 / 歯 / 歯根象牙質 / 殺菌 |
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| Outline of Final Research Achievements |
The objective of this study was investigated to observe the tooth surface exposed to ultraviolet (UV) light from an excimer lamp. Tooth roots were sectioned transversely along the long axis, trimmed into slabs, and randomly divided into these groups: the excimer UV irradiation group and the no treatment group. The water contact angle was measured for each group. The contact angle of the excimer irradiation group was significantly lower than the no treatment group. Additionally, nanoindentation tests were performed. However, there was no significant differences in nanohardness or Young's modulus between the two groups. These results confirm the increased surface wettability of dentin exposed to UV irradiation and the mechanical properties of the dentin structure are not altered by UV irradiation.
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