Patent ID: 9615895
Date: 2017-04-11
CPC Classifications: A61C

Claim:
1. A dental polishing instrument comprising: a base material forming a mother body; a polishing layer disposed on a surface of the base material; and protrusions that are disposed on a surface of the polishing layer, wherein the protrusions are each formed independently from each other, wherein each of the protrusions has a height of 20 μm to 80 μm, and has an oval shape when viewed from the top thereof, wherein each of the protrusions includes polishing abrasive grains mounted thereon, wherein a length of a longer diameter and a shorter diameter of the oval shape of each of the protrusions is 20 μm to 100 μm, and the length of the shorter diameter is 80% to 100% of the length of the longer diameter, and wherein a rate of occupancy of the protrusions per unit area in the polishing layer is 40% to 90%.