Invention Grant
- Patent Title: Dental composition and composite resin
- Patent Title (中): 牙科成分和复合树脂
-
Application No.: US12989962Application Date: 2009-04-28
-
Publication No.: US08436078B2Publication Date: 2013-05-07
- Inventor: Masaki Okubayashi , Koichi Okada , Yusuke Takahata , Keisuke Ohtsuka
- Applicant: Masaki Okubayashi , Koichi Okada , Yusuke Takahata , Keisuke Ohtsuka
- Applicant Address: JP Kurashiki-shi JP Kawasaki-shi
- Assignee: Kuraray Noritake Dental Inc.,JGC Catalysts and Chemicals Ltd.
- Current Assignee: Kuraray Noritake Dental Inc.,JGC Catalysts and Chemicals Ltd.
- Current Assignee Address: JP Kurashiki-shi JP Kawasaki-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-117803 20080428
- International Application: PCT/JP2009/058417 WO 20090428
- International Announcement: WO2009/133913 WO 20091105
- Main IPC: A61K6/08
- IPC: A61K6/08 ; A61C5/09 ; B32B18/00

Abstract:
The present invention provides a dental composition exhibiting both an excellent light diffusion property and excellent transparency, and having high mechanical strength and surface smoothness and gloss after polishing as a cured product and good handling properties as a paste. The present invention is a dental composition including: a polymerizable monomer (A); and an amorphous powder (B). The amorphous powder (B) has an average particle size of 1 to 20 μm, and includes silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The difference in refractive index between the cured product of the polymerizable monomer (A) and the amorphous powder (B) is 0.005 to 0.03.
Public/Granted literature
- US20110046260A1 DENTAL COMPOSITION AND COMPOSITE RESIN Public/Granted day:2011-02-24
Information query