Title:
DENTAL MILL BLANK AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/131756
Kind Code:
A1
Abstract:
The present invention provides a dental mill blank exhibiting superior resistance against wear in opposing teeth. The present invention pertains to a dental mill blank comprising a polymer and an inorganic filler that contains an inorganic filler (A) and an inorganic filler (B), a portion of the inorganic filler (A) forming an aggregate, wherein the following formulas (I) to (III) are satisfied when the average primary particle size of the inorganic filler (A) is a μm, the average primary particle size of the inorganic filler (B) is b μm, and the average particle size of the aggregate is x μm. It is preferable for the dental mill blank to comprise an island component that contains the aggregate and to comprise a sea component that contains the inorganic filler (A) and the inorganic filler (B). (I) 0.001 ≤ a < 0.32 (II) 0.3 ≤ b ≤ 10 (III) 5 ≤ x ≤ 80
Inventors:
INOUE MASASHI (JP)
HATANAKA KENJI (JP)
HATANAKA KENJI (JP)
Application Number:
PCT/JP2018/047832
Publication Date:
July 04, 2019
Filing Date:
December 26, 2018
Export Citation:
Assignee:
KURARAY NORITAKE DENTAL INC (JP)
International Classes:
A61C13/083; A61C5/70
Domestic Patent References:
| WO2017154850A1 | 2017-09-14 | |||
| WO2012042911A1 | 2012-04-05 | |||
| WO2014021343A1 | 2014-02-06 | |||
| WO2014021343A1 | 2014-02-06 | |||
| WO2012042911A1 | 2012-04-05 |
Foreign References:
| JP2017109036A | 2017-06-22 | |||
| JP2017014111A | 2017-01-19 |
Other References:
See also references of EP 3733114A4
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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