High Speed Handpieces

The following report accompanies the October 2000 CRA Newsletter and provides additional information. For complete information please see the October 2000 Newsletter. If you do not have a Newsletter please click here to place an order.

I. Introduction - Handpieces tested and company information
II. Materials, Methods, Raw Data, and Results – compiled for clinical and lab test sections in the October 2000 CRA Newsletter (For discussion of results and conclusions for each section see the October 2000 CRA Newsletter)
  A. Use-Life of Sterilized vs. Non-Sterilized HPs in Lab Test -
 
  1. Protocol for lab testing to determine use-life due to sterilization
  2. Use-life of each HP tested for each brand in steam autoclave, chemical vapor, and use with out sterilization (control)
  3. Statistical analysis for 99.95% confidence level of expected failure for each brand of HP
  4. Comparison to similar models of HPs tested in 1992 by CRA using same protocol (Click here to order the June 1995 CRA Newletter)
  B. Power ("Torque") Loss Related to Sterilization -
 
  1. Protocol for speed and torque measurement and power calculation
  2. Power for each HP measured every 100 cycles throughout life of the HP
 
C. Frequency of Performance Irregularities -
 
  1. Protocol for making irregularity observations along with definitions of irregularities
  2. Frequency of 24 performance irregularities for each HP tested
  D. Light Output Degradation Due to Sterilization -
 
  1. Protocol for light output measurement
  2. Light output for each HP measured every 100 cycles throughout life of HP
 
E. Sound Emission -
 
  1. Sound emission measurement protocol
  2. Sound output (dBA) for each HP measured over life of HP
  3. Frequency of sound irregularities for each brand of HP

III.

 Conclusions – See October 2000 CRA Newsletter

 

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