Resources Contact Us Home
Sponge prophy

Image Number 5 for United States Patent #7785106.

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.

  Recently Added Patents
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Grid computing accounting and statistics management system
Solid-state imaging apparatus
Liquid crystal panel and liquid crystal display
Reserving a time block in a calendar application to account for a travel time between geographic locations of appointments
Method and apparatus for wireless communication in a mesh network with central control of communication relationships
Image heating device
  Randomly Featured Patents
Apparatus for blow moulding plastic preforms having a reduced dead volume
Apparatus for resecting corneal tissue
Polymeric pyridinium ylides and products prepared from same
Compressor-expander apparatus
Control circuit for resetting circuit breaker UVR solenoid
Composition for froth flotation of zinc sulfide
Electric combination oven
Semiconductor device metal programmable pooling and dies
Optical element for scanning system and method of manufacture thereof
Luminaire housing