Instruments are classified based on what criteria?

Instruments are classified primarily based on the risk of transmitting infection during dental procedures. This classification focuses on the potential for instruments to harbor pathogens and subsequently facilitate the spread of infections if not properly managed.

Infection control guidelines dictate that instruments are categorized into critical, semi-critical, and non-critical items based on their intended use and the level of risk they pose to patients. Critical instruments, which penetrate soft tissue or bone, carry the highest risk and require sterilization. Semi-critical instruments contact mucous membranes and must be disinfected or sterilized based on their use. Non-critical instruments, which only contact intact skin, are typically cleaned and disinfected.

While the other options mention various factors such as cost, color coding, size, and shape, these are not primary considerations in the classification of instruments in relation to infection control practices. The main focus remains on the risk of infection transmission as this directly impacts the health and safety of both patients and dental healthcare providers. This understanding is crucial in maintaining a sterile environment and adhering to infection control protocols in dental practice.