PROBLEM TO BE SOLVED: To provide a method for creating three-dimensional shape data capable of accurately measuring a shape of an oral cavity three-dimensionally without having to spray powder even when an existing device is used.SOLUTION: A polymerizable composition (3) with high light-diffusing property for manufacturing dental prosthesis is applied to the surface of a cavity or an abutment tooth (1). The composition for manufacturing dental prosthesis is hardened, and an outer surface shape of the hardened composition for manufacturing dental prosthesis is measured in a non-contact manner.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】これまでの装置を用いる場合であっても、パウダーの噴霧をすることなく、正確に口腔内の形状を三次元的に測定することができる三次元形状データ作成方法を提供する。【解決手段】窩洞又は支台歯(1)の表面に、光の拡散性の高い重合性の歯科補綴物作製用組成物(3)を塗布し、該歯科補綴物作製用組成物を硬化させ、硬化した歯科補綴物作製用組成物の外表面形状を非接触で計測することを特徴とする。【選択図】図3
