NEET MDS - Master of Dental Surgery (Medical) NEET-MDS Oral Surgery-Asepsis and Sterilization Study Material (Page 1 of 1)
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Sterilisation: Physical Method of Sterilisation, Temperature
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Introduction
- “Sterilisation is a process by which articles are freed of all microorganisms both in vegetative and spore state. “
- Various method of sterilisation: there are two methods physical and chemical
Physical Method
- Sunlight: it produces bactericidal activities. Its action is due to UV rays.
- Drying: drying in air deletes many bacteria՚s but spores still remains unaffected.
- Heat: based on nature of heat, sterilisation is of two types.
- Dry heat: killing by dry heat can be done by:
- Protein denaturation
- Oxidative damage.
- Toxic effect of elevated levels of electrolytes:
- Red heat: u…
… (351 more words, 11 figures) …
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