Patent Number: 7,785,106

Title: Sponge prophy

Abstract: A dental prophy chip with a hollow core of different shapes such as canopy, cylinder, cup and inverted cone, is covered by hydrophilic grindstone sponge containing a polishing agent and its edge is either pressed fixed or folded into the interior of the core with a latch plate. A shaft is fixed to the latch plate to avoid resonance at bottom surface, during rotation. The device maintains polishing efficiency by avoiding transverse oscillation in polishing barrel-shaped tooth clearance and reducing frictional heat.

Inventors: Takahashi; Atsushi (Tsuruga-Shi, Fukul 914-0814, JP)

Assignee:

International Classification: A61C 3/06 (20060101)

Expiration Date: 8/31/12018