What does the term "thermal relaxation time" mean in the context of laser therapy?

The term "thermal relaxation time" refers to the cooling time required after tissue heating. In the context of laser therapy, it is the period during which the treated tissue cools down after being heated by the laser. Understanding this concept is critical because it helps define parameters for effective treatment, ensuring that the tissue has enough time to cool between successive laser applications. This cooling period is important for preventing excessive heating that could lead to thermal damage, thus allowing for optimal therapeutic effects while minimizing the risk of injury to surrounding tissues. Knowing the appropriate thermal relaxation time assists practitioners in scheduling treatments and managing the overall treatment protocol effectively, ensuring patient safety and comfort.