2018 年 10 巻 2 号 p. 53-60
We successfully prepared light-curing type fluorescent resins as orthodontic adhesives doped with tris(1,3-diphenyl-1,3-propanedionato)(1,10-phenanthroline)Eu(III) [Eu(DBM)3Phen] by a photo- induced radical polymerization method. The transparent and almost colorless appearance of the composites under natural light is favorable for an esthetic dental product. The strong luminescence under near-UV light, especially when the content of Eu(DBM)3 Phen is above 0.1 wt%, is promising for safe and complete removal of this adhesive after completing orthodontic treatments. We have also found that concentration quenching may occur around a concentration of 0.2-0.4 wt%. Based on the results obtained, in situ monomer polymerization can be applicable to Eu(DBM)3Phen-containing adhesives. Although we are still investigating this proposed system, we conclude that the Eu(DBM)3Phen-containing adhesives is a promising candidate for application to fluorescent orthodontic adhesives.
