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Autoclave Working Mechanism In Dentistry

Auto clave

For the protection of patients, a reliable and efficient infection control in a dental office is necessary. Effective cleaning and sterilization of reusable dental instruments and equipment are all used in infection prevention systems. The dental healthcare provider must take precautions to ensure that all instruments are effectively washed before sterilization and that it is performed in a secure way to minimize the spread of infection.

Of all the methods used for sterilization, the most commonly used and most effective is moist heat in the form of condensed steam under pressure. Steam sterilization is economical, non-toxic, and much more effective than dry sterilization due to its high penetrating capacity.

For an effective sterilization i.e. killing of all harmful microorganisms including bacterial spores, viruses, fungi, etc. the reusable dental instruments need to remain exposed to a specific temperature under pressure for specific holding time, which is possible to maintain in autoclave.

Mechanism of Steam Sterilization :

The fundamental concept of a steam sterilizer is to expose all the instruments those need to be sterilized to highly pressurized steam at appropriate temperature for specific time period. Hence steam sterilization has 4 things to consider for a cycle i.e. Temperature, Pressure, Time and steam (moist heat).

Depending upon the type of dental autoclave, the duration of the sterilization cycle varies.

Types of Steam Sterilizers:

There are basically 2 types of dental steam sterilizers used in dental industry.

N class Autoclave:

This is small and economical dental autoclave. The “N” stands for “Non-Vacuum” sterilizer. It is mostly used to sterilize only solid and naked dental instruments e.g. mouth mirror, probe, explorer, tweezer, forceps, elevators etc. It works by the mechanism of “Gravity displacement”. At the sides of the sterilizing chamber, moist heat is admitted and it thus pushes the air out of the chamber due to the less weight of air than steam. Porous and hollow instruments are not recommended for sterilization in this type autoclave due to the unavailability of vacuum cycle and also the penetration time of porous instruments is prolonged due to incomplete air elimination.

B class Autoclave:

This type autoclave is the most advanced type of autoclave with triple vacuum cycle. This autoclave meets all the European standard guidelines for an effective infection control in the dental clinic. All varieties of porous/non-porous, solid/hollow, wrapped/unwrapped instruments can be sterilized in B-type autoclave. One vacuum cycle starts prior to sterilization to eliminate the contaminated air from the chamber, another vacuum cycle starts after sterilization to remove the moist air from the chamber for an effective dry cycle, the last vacuum cycle starts at the end of the cycle to ensure a 100% sterilization. Now-a-days B class autoclave also come with a Prion Cycle or B+ Cycle for effective destruction of prion bacteria and assurance of sterile dental instruments prior to any surgical case.

The most renowned dental autoclave in India is Runyes autoclave i.e. Feng 23L B class autoclave. This autoclave also comes with B+ cycle.

How to Choose the right Autoclave for your dental clinic?

  • Capacity:

Depending upon the practice and the size of the dental clinic, the dental healthcare worker needs to choose an autoclave which can easily sterilize all the used dental instruments of the clinic at a time, keeping in mind the safety of the patients and the assistants.

  • Reduced Full Cycle Time:

The faster the full sterilization cycle, the more the productivity of the dental professional. As in Feng 23L B class autoclave the full cycle time is reduced, that does not impede the entry of subsequent patients and instruments can be sterilized on a continuous basis for the increased safety of the patients.

  • Design: 

The dental autoclave should be compact to place in the sterilization area of dental clinic. It should not acquire much space in the dental clinic.

  • Data Accessibility:

To ensure the safety standards, the sterilization data can be stored and easily be accessible. As in Runyes Feng 23L autoclave, the data accessibility feature is available along with option for printer to meet all the requirements of the dentist.

  • Effectiveness of the Sterilization:

With advanced technology, the autoclave now comes with feature of checking the temperature penetration with “B&D Test” and also steam generator cleaning program to increase the effectiveness of the sterilization cycle. It mostly reduces the need of service calls which gives the dentist a peace of mind.

You Can Also Buy The Best Dental Autoclave at an Affordable Price from our Online Store.

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