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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Dental Medicine / Faculty of Dental Medicine >
Peer-reviewed Journal Articles, etc >
Preparation and Properties of Dental Composite Resin Cured under Near Infrared Irradiation
| Title: | Preparation and Properties of Dental Composite Resin Cured under Near Infrared Irradiation |
| Authors: | Uo, Motohiro Browse this author →KAKEN DB | | Kudo, Eiki Browse this author | | Okada, Aya Browse this author | | Soga, Kohei Browse this author | | Kogo, Yasuo Browse this author |
| Keywords: | composite resin | | upconversion | | near infrared | | photo-polymerization |
| Issue Date: | 2009 |
| Publisher: | The Technical Association of Photopolymers, Japan |
| Journal Title: | Journal of Photopolymer Science and Technology |
| Volume: | 22 |
| Issue: | 5 |
| Start Page: | 551 |
| End Page: | 554 |
| Abstract: | A composite resin (CR) with photo-polymerization is widely used for dental filling material. Current CR has a restriction on the photo-polymerization depth because of the scattering of irradiated blue visible (VIS) light. Rare earth doped Y2O3 particles (Y2O3:RE) are known to emit blue VIS light under near infrared (NIR) excitation by an upconversion process. The particles can act as both filler to reinforce and illuminator to cure the resin by emitting blue VIS light under the irradiation of the NIR light, which propagates more deeply due to its longer wavelength. In this study, CR with Y2O3:RE was prepared. The Young's modulus of CR with Y2O3 was comparable with that of commercial CR, however, the hardness was lower than that of commercial CR. CR with Y2O3:RE was successfully cured with NIR irradiation. Then, the feasibility of Y2O3:RE as the NIR polymerization initiator using its upconversion emission for CR was suggested. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/38802 |
| Appears in Collections: | 歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 宇尾 基弘
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