Calculus and harmful bacteria building can damage by teeth by releasing harmful toxins. If left untreated, then can cause gangitivis, periodontitis, bleeding gums, and bone loss. Sometimes the buildup takes place in hard to reach areas that cannot be treated even with flossing, brushing or dental cleaning. In this case, procedures like scaling and root planning are conducted to remove those harmful deposits. These are typically performed using an ultrasonic cleaner. The cleaner uses high frequency vibrations to remove the calculus. Multiple appointments are required to complete this process. They can be extremely helping in stopping the spread of periodontitis.