Ultrasound Scanners in Dental Medicine

Watch Dental Video about Ultrasound Scanner

On ultrasound scanners, the working ends are moved within a frequency range that matches the ultrasound waves (from about 35kHz to 1 GHz).

In the video "Ultrasound Device" you see how plaque is removed from a patient’s lower jaw using an ultrasound scanner. The working ends of ultrasound scanners swing, as opposed to the working ends of well-known drills, which rotate. Whether from swinging or rotating, both the ultrasound scanner and the drill generate heat on the tooth and need to be thoroughly cooled with water. Over-heating of the tooth leads to tooth nerve damage that can necessitate root treatment. Ultrasound scanners should only be used for plaque removal. Discolorations can be removed as well. However, the use of ultrasound scanners is always associated with loss of tooth substance.

Dental Ultrasound Scanner

Dental Ultrasound Scanner

In the film you see a magnified view of the enamel surface: Tea, coffee and nicotine have led to discolorations. On the left, the discolorations are removed using a bleaching gel; on the right, they are removed using an ultrasound. You can clearly observe the loss of tooth substance on the right. In both cases the tooth is “white” again, but the ultrasound scanner removed tooth substance. This is why an ultrasound scanner should be used very carefully for dental hygiene and other purposes.

More about that in the video entitled "Bleaching".

Click here to see the video: Ultrasound Device


This post is also available in: German

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