The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2025
Filed:
Sep. 02, 2021
Hass Co., Ltd., Gangneung-si, KR;
Hyung Bong Lim, Ansan-si, KR;
Yong Su Kim, Gangneung-si, KR;
HASS CO., LTD., Gangneung-si, KR;
Abstract
Provided is a dental bulk block comprising a crystalline phase includes lithium disilicate as a main crystalline phase and eucryptite as a sub-crystalline phase in an amorphous glass matrix that is a functionally graded material having a main crystalline size gradient with respect to the depth thereof, and having no interface at the point of change in the main crystalline size gradient value, and is useful for manufacturing artificial teeth having structural characteristics similar to those of natural teeth, is facile to machine into an artificial tooth prosthesis due to the inclusion of eucryptite as the sub-crystalline phase compared to when only lithium disilicate exists, and can not only shorten the manufacturing time, but also increase the structural stability in terms of force distribution through functional grading of mechanical properties.