Dr. Popadic, Rovinj - Croatia, Specialist for Dentistry

Sterilization

First thing that our patients notice entering our practice is spotlessly cleanness. We consider this issue maybe the most important thing within dental surgery, especially when talking about dental instruments and devices.

We dedicate lot of time and energy to the cross infection control.

All our dental units are equipped with self disinfecting system and anti cross-infection devices.

After use, instruments are cleaned and washed under the running water, then left for 15 minutes in an ultrasonic bath. After this cycle, instruments are rinsed thoroughly under running water again, inspected for any residuals, and then dried and packed into the special bags and thus placed in the autoclave.

All instruments, not only surgical are sterilized in the autoclave. An autoclave is a very strong, pressurized, steam-heated, sealed vessel used for heating up aqueous solutions above the boiling point of water. Autoclaves are used for laboratory experiments, sterilization, and cooking.

Autoclaves increase the boiling point of water and other aqueous solutions. When the temperature of the aqueous solution being heated in the vessel reaches about ninety degrees Celsius, evaporation begins occurring. Water vapor then creates a great deal of pressure within the vessel. As the pressure of the vapor in the vessel reaches the temperature, evaporation stops occurring. As such, not all the water turns to vapor.

The higher the temperature is inside the vessel, the higher the pressure of the vapor. The latent heat, or the heat generated under pressure, has a greater ability to penetrate bacterial spores. The high pressure in autoclaves requires them to be constructed of a very strong metal and to be shut very tightly. They inactivate bacteria, viruses, fungi, and spores.

It is important to ensure that the objects to be sterilized were in an autoclave that reached the right temperature for the right amount of time. This can be ensured through the use of various chemical, physical, and biological indicators. Chemical indicators change color when the right conditions inside the autoclave have been achieved. Biological indicators change the temperature of a pH sensitive chemical. Physical indicators usually involve an alloy that melts after it has been subjected to 121 degrees Celsius for fifteen minutes.

After this procedure instruments are perfectly safe and ready for you.

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