No, Invisalign is a safe and effective orthodontic treatment that is clinically proven to be non-invasive, comfortable, and efficient. It is an alternative to traditional metal braces, and its technology is specifically designed to provide clear, removable aligners that are custom-fit to the patient's teeth. These aligners gradually move the teeth in the desired direction, without causing any discomfort or pain. Patients who use Invisalign have reported minimal to no tooth sensitivity, and the treatment is designed to minimize any potential risk to the surrounding gums or teeth. Therefore, it is safe to conclude that Invisalign is not harmful and is an excellent choice for those seeking straight teeth in a comfortable and discreet manner.