If your teeth lost their whiteness think about procedure for removal dental calculus. Dentists in Texas use ultrasound for such procedure. Removal of the tartar with ultrasound is considered to be the most efficient and modern procedure nowadays that is carried out in the modern dental clinic in Texas. Tartar is removed with an ultrasonic scaler that removes stain from the tooth enamel influence it by vibration. This method is recognized as the universal, so using it is possible to remove not only visible but also invisible stain under the gum. Besides ultrasound can destroy 99,9% of bacteria.