DENTAL DIAMOND BAR

Title:

DENTAL DIAMOND BAR

Document Type and Number:

WIPO Patent Application WO/2021/020484

Kind Code:

A1

Abstract:

Provided is a dental diamond bar that exhibits excellent grinding performance and superb handleability. This dental diamond bar (1) is equipped with a rod-like member (2) and a plurality of diamond abrasive grains (3) firmly fixed to a tip surface of the rod-like member (2). The abrasive grains (3) include a plurality of specific abrasive grains (8) that form a surface exhibiting a kurtosis Sku of at least 5 and/or an arithmetic average curvature Spc of at least 380 (1/mm) at the top of the grains. The abrasive grains (3) may also include a plurality of specifically-shaped abrasive grains (15) that have an aspect ratio of 1.4-2.0. The abrasive grains (3) may have a grain size distribution where the cumulative percentage of the cumulative number of abrasive grains having an aspect ratio of at least 1.4 with respect to the total number of abrasive grains is 50% or more. A plating layer (7) used for fixing the abrasive grains (3) may be configured to have a thickness substantially the same as the length of the specifically-shaped abrasive grains (15) in the short-side direction thereof.

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Inventors:

MATSUTANI KAZUHIKO (JP)
SATO HIROKO (JP)
OSHIMA YUKIO (JP)
OKADA TOMOHIRO (JP)
ARAKAWA SAORI (JP)

Application Number:

PCT/JP2020/029167

Publication Date:

February 04, 2021

Filing Date:

July 29, 2020

Export Citation:

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Assignee:

MANI INC (JP)

International Classes:

A61C3/02

Domestic Patent References:

WO2018080778A1

2018-05-03

Foreign References:

JP2868570B2	1999-03-10
JP2016513591A	2016-05-16
JPS6119570A	1986-01-28
US20130183636A1	2013-07-18