Method and apparatus for ultrasonic cleaning of teeth
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4. A METHOD OF CLEANING TEETH IN THE HUMAN MOUTH SUITABLE FOR REGULAR PERSONAL HYGIENIC CARE, COMPRISING THE STEPS OF POSITIONING A BRUSH MEMBER IN THE MOUTH ADJACENT THE TEETH TO BE CLEANED IN THE PRESENCE OF A DENTIFRICE, MANUALLY MOVING SAID BRUSH ELEMENT ACROSS THE SUR-
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4. A METHOD OF CLEANING TEETH IN THE HUMAN MOUTH SUITABLE FOR REGULAR PERSONAL HYGIENIC CARE, COMPRISING THE STEPS OF POSITIONING A BRUSH MEMBER IN THE MOUTH ADJACENT THE TEETH TO BE CLEANED IN THE PRESENCE OF A DENTIFRICE, MANUALLY MOVING SAID BRUSH ELEMENT ACROSS THE SUR-
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