Clinical Research Associates

The following section shows procedures and results comparing 6 toothbrushes (1 ultrasonic, 2 sonic, 2 electric (no sonic claims), & 1 manual brush). 

Summary of Study:  All toothbrushes tested removed dental plaque.  No automated toothbrush was substantially better than the conventional manual brush control in removing plaque.  Toothbrushes making sonic & ultrasonic claims were not superior to either the manual brush control or to other automated toothbrushes in the study.  Non-handicapped subjects indicated a high preference for the Advantage manual brush over all other brushes in the study because of superior control, convenience, ease of use, & low cost.

    This section is designed to be used in conjunction with the July 1998 CRA Newsletter (Vol. 22, Issue 7) and does not replace the information contained in the original publication.