What type of sterilization method is commonly used in dental practices?

• A. Cold sterilization
• B. Dry heat sterilization
• C. Autoclaving
• D. Gas sterilization

Answer: (C)

Autoclaving is a sterilization method that is commonly used in dental practices due to its effectiveness in eliminating a broad range of microorganisms, including bacteria, viruses, fungi, and spores. This method uses steam under pressure to achieve high temperatures, typically around 121-134 degrees Celsius, for a specified period of time. The combination of heat and moisture in the autoclave ensures that sterilization is thorough, making it suitable for various dental instruments and tools that are heat-resistant.

In addition to its efficacy, autoclaving is also a preferred method because it is safe and environmentally friendly, as it utilizes water to generate steam. This method is reliable for ensuring that instruments are free from contamination before being used on patients, which is critical in maintaining infection control in dental settings.

While cold sterilization is utilized for certain heat-sensitive materials, it does not provide the same level of assurance against all types of microorganisms as autoclaving. Dry heat sterilization, while effective for certain applications, often requires longer exposure times and higher temperatures compared to autoclaving. Gas sterilization involves the use of toxic gases for sterilization and is used less frequently in dental practices due to safety concerns and the need for specialized equipment.