Cleaning, sterilization and disinfection: basics of microbial killing for infection control

Article Abstract:

Several processes are used to kill bacteria and other microorganisms on dental equipment. Cleaning instruments and surfaces first can reduce bacterial contamination and remove blood and saliva. Cleaning is commonly done by hand or by using ultrasound. Sterilization involves the use of steam, chemicals or gas. It must last at least 10 hours and usually kills all microorganisms and spores. Disinfection can be done in less time, but may not kill bacterial spores. Techniques for cleaning, disinfecting and sterilizing dental equipment and surfaces are described.

Disinfection and disinfectants, Disinfectants, Disinfection

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Using extracted teeth for research: the effect of storage medium and sterilization on dentin bond strengths

Article Abstract:

The null hypothesis that the storage medium and sterilization method have no effect on dentin bond strengths is studied. Lower bond strength was found in bovine inscisors stored in sodium hypochlorite (NaClO), and sterilization with the autoclave showed negative effects on bond strength. The methods used and other results of the study are discussed as well.

Research and Development in the Physical, Engineering, and Life Sciences, Research and Testing Services, All Other Basic Organic Chemical Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Industrial inorganic chemicals, not elsewhere classified, Formaldehyde, Dental Research, Sodium Hypochlorite, Analysis, Usage, Materials, Report, Bond strength

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Internal contamination of air-driven low-speed handpieces and attached prophy angles

Article Abstract:

An in vitro crossover study to determine the potential of internal contamination of air-driven low-speed handpieces and prophy angles, to prevent microorganism transmission from patient to patient is analyzed.

Control, Microorganisms, Contamination

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