Midterm (dho) Flashcards
(26 cards)
Hygiene for the clinic
Dentist must wear comfy and clean attire (applies to all dental staff and patients)
Attire of a dental clinician
Headcap Disposable mask Face shield Gown Flat comfy shoes Clean gloves
Father of asepsis
Joseph lister
Methods which prevent contamination of wounds
Asepsis
Removes visible contamination but does not destroy organism
Cleaning
Application of antiseptic sol’n
Antisepsis
Reduces the number of microorganism
Disinfection
Destruction/ removal of microorganism
Sterilization
Reduces microbial population
Sanitizing
Removes pathogenic microorganism
Decontamination
Disinfection (high)
Microbacteria, TB bacilli
Disinfection (intermediate)
Hydrophilic viruses
Disinfection (low)
Vegetative and bacteria lipophilic viruses
In contact with open wounds
Critical
Contact with person but not with open wounds
Semi critical
Devices for cleaning, disinfection
Non critical
Stages of sterilization
Pre sterilization cleaning
Sterilization process
Aseptic storage
Methods of pre sterilization
Manual- soap, detergents
Mechanical washing- high jets of water with or without detergent
Ultrasonic- conversion of electrical energy into vibratory sound waves
Removal of organic matters, blood and saliva
Pre sterilization
Sterilization/ disinfection
Physical- Drying, heat (dry, moist)
Chemicals- alcohol, aldehyde, halogens, biguanidine
Most common and effective methods of sterilization
Heat
Killing due to dehydration and oxidation of organism, protein denaturation
Dry heat
To sterilize metallic objects by holding them in flame till they’re red hot
Red heat
Passed over to the flame
Flaming
