What type of laser mode does the CO2 laser operate in for non-contact applications?

The CO2 laser primarily operates in a continuous wave mode for non-contact applications. This mode allows for a steady output of energy, which is particularly beneficial in soft tissue surgeries within periodontology. The continuous emission of laser energy facilitates consistent cutting and coagulation of tissue, minimizing lateral thermal damage. This is crucial in periodontal procedures where precision and control are necessary to preserve surrounding tissues and promote optimal healing.

In contrast to other modes, such as pulsed wave, where energy is delivered in short bursts, continuous wave operation provides sustained energy output that is effective for procedures requiring prolonged exposure to achieve desired results. While the pulsed and superpulsed options have their specific advantages and applications, particularly in precise cutting and reducing thermal injury, they are less commonly employed for the broad scope of non-contact applications that the CO2 laser is typically used for in periodontal practice. Intermittent wave is not a standard classification for laser operations in this context, making continuous wave the most accurate answer for CO2 lasers in non-contact scenarios.