What is the classification of instruments that contact but do not penetrate soft tissue or bone?

The correct classification for instruments that contact but do not penetrate soft tissue or bone is defined as semicritical instruments. This classification is important in infection control practices within dental and healthcare settings. Semicritical instruments, such as radiographic bite blocks and other devices that touch mucous membranes or non-intact skin, require high-level disinfection or sterilization because they may be contaminated with blood or saliva.

Understanding this classification helps dental professionals implement proper infection control measures, ensuring that items that come into contact with patients are appropriately cleaned to minimize the risk of cross-contamination and infection transmission.

While noncritical instruments only come into contact with intact skin and require a lower level of disinfection compared to semicritical instruments, critical instruments penetrate soft tissue or bone and therefore require sterilization. Disposable instruments are designed for single-use and can be discarded after one patient use, but they don’t fit into the classification of contact with soft tissue or bone.