Biomedical subjects
Publications and source records attributed to H Shpuntoff.
Demonstration of a suction effect in operation of high-speed dental handpieces adds credence to concept that the handpiece can be contaminated internally; it also demonstrates a method by which bacteria can be incorporated into the aerosol cloud that occurs when the high-speed drill is used.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Controlled exposure of chicken embryos to continuous 30 W/cm2, 29 kHz ultrasonic vibration in a water medium produced, in proportion to exposure, progressively retarded growth or death. Analysis supports, and observation confirms, the presence of cavitation in the water medium. The effects reported here differ substantially from published observations of megaHertz insonation of chicken embryos at similar intensities. The experiments closely resemble in method of application, frequency and intensity the operation of several ultrasonic surgical and dental instruments.