Related Experiment Video
Updated: Aug 12, 2026

Failure of Cleaning Verification in Pharmaceutical Industry Due to Uncleanliness of Stainless Steel Surface
Published on: August 11, 2017
Cleaning dental instruments: measuring the effectiveness of an instrument washer/disinfector
C H Miller1, C M Tan, M A Beiswanger
1Indiana University School of Dentistry, Indianapolis 46202, USA. chmille@iusd.iupui.edu
Purpose:
To analyze the cleaning effectiveness of one type of instrument washer available for use in a dental office.
Materials And Methods:
Dental instruments were heavily contaminated with blood and specific test bacteria. They were placed in cleaning baskets or within instrument cassettes, processed through the instrument washer, and analyzed for remaining blood and viable bacteria.
Results:
Information obtained indicated that the washer is an effective cleaning system for dental instruments.
Related Concept Videos
Handwashing I: Introduction and Types of Equipment
Hand wash basins in clinical areas should have faucets that can be turned on and off without using the hands; that is, they should be non-touch or lever-operated.
Cleaning, Sterilization, and Disinfection
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Methods of Sterilization II: Chemical Methods
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Antimicrobial Effectiveness

