PROBLEM TO BE SOLVED: To provide, in a dental field, a fluorescence imparting liquid for imparting fluorescence without discoloration of a zirconia ceramic prosthesis device after sintering.SOLUTION: The present invention provides a fluorescence imparting liquid for use in a prosthesis device cut from zirconia for dental cutting, the fluorescence imparting liquid containing (a) a water-soluble bismuth compound and/or water-soluble neodymium compound: 2-40 wt.%, (b) water and/or vegetable oil: 8-70 wt.%, and (c) an organic solvent: 0.1-10 wt.%.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】歯科分野において、焼結後のジルコニアセラミックス補綴装置の変色を伴うことなく蛍光性を付与するための、蛍光性付与液の提供。【解決手段】歯科切削加工用ジルコニアから切削加工された補綴装置に用いる蛍光性付与液であって、(a)水溶性ビスマス化合物及び/又は水溶性ネオジウム化合物:2~40wt%、(b)水及び又は植物油:8~70wt%、(c)有機溶媒:0.1-10wt%を含むことを特徴とする蛍光性付与液。【選択図】なし