US 12,403,073 B2
Dental material
Lippo Lassila, Lielax (FI); Sufyan Garoushi, Turku (FI); Pekka Vallittu, Kuusisto (FI); and Eija Sailynoja, Littoinen (FI)
Assigned to Stick Tech Oy, (FI)
Appl. No. 17/627,062
Filed by Stick Tech Oy, Turku (FI)
PCT Filed Jul. 23, 2020, PCT No. PCT/FI2020/050501
§ 371(c)(1), (2) Date Jan. 13, 2022,
PCT Pub. No. WO2021/019128, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 19188496 (EP), filed on Jul. 26, 2019.
Prior Publication US 2022/0273523 A1, Sep. 1, 2022
Int. Cl. A61K 6/887 (2020.01); A61C 5/20 (2017.01); A61C 13/00 (2006.01); A61K 6/836 (2020.01)
CPC A61K 6/887 (2020.01) [A61C 5/20 (2017.02); A61C 13/0022 (2013.01); A61K 6/836 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A dental material comprising a polymer resin, particulate fillers and randomly oriented inorganic fibres, wherein
an average largest dimension of the particulate fillers is 0.3-1.2 μm,
the inorganic fibres have a diameter of 4-8 micrometre and an aspect ratio of 20-80 based on an average length of the inorganic fibres, wherein the average length of the inorganic fibres is 100-200 μm,
the dental material is void of other fibres,
the total amount of particulate fillers and inorganic fibres is 70-81 wt-% of the total weight of the material, and
the amount of inorganic fibres is 20-35 wt-% of the total amount of particulate fillers and inorganic fibres.