American Dental Association
American Dental Association Patent applications | ||
Patent application number | Title | Published |
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20140260707 | METHOD AND APPARATUS FOR CHARACTERIZING HANDPIECES - An apparatus for characterizing the performance of air turbine handpieces including high speed dental handpieces and chucking devices in terms of speed, torque, power, and air consumption include an air or fluid supply source for the handpiece and various sensors to measure input, flow rate, temperature and pressure and output speed and forces on the output shaft of the handpiece. Data from the sensors is collected, collated, processed and recorded to continuously provide a record of the handpiece characteristics for purposes of evaluating efficiency, quality control, safety and compliance with standards. | 09-18-2014 |
20130178135 | Methods for Testing the Polishability of Materials - A method and apparatus for measuring the polishability of a solid material such as a dental restorative material includes using a series of apparatus to perform the steps of forming the material into a desired specimen with a generally planar surface, conditioning the surface by abrasion, measuring the abraded surface with a profile determination device, optionally measuring the amount of material abraded from the surface and the gloss of the abraded surface, polishing a portion of the abraded surface with a polishing device at a controlled load for a pre-determined time and measuring the roughness and/or gloss of the polished surface followed by comparison thereof to the corresponding measurements of the unpolished, conditioned portion of the specimen surface. Polishing materials and devices may also be tested using the apparatus and method for polishing a standardized material. | 07-11-2013 |