irrigation system ( soni care canal brush )

The Sonicare CanalBrush is a combination of a newly designed intra-canal polypropylene brush inserted into a Philips Sonicare Elite toothbrush (Philips, Amsterdam, Netherlands). The sonic toothbrush operates at a frequency of 50 Hz and performs 31 000 strokes per minute. The head of the original Sonicare Elite toothbrush was altered to hold the CanalBrush. The Sonicare achieves brush velocity with a combination of high frequency and high amplitude brush motion. This velocity generates dynamic action but is gentle on the root canal walls. The Canal Brush has a total length of 41 mm. Its contra angle shaft of 15.34 mm includes the acting 16 mm component that contains the bristles. The 30 bristles are <0.40 mm long and arranged opposite to each other with an inter-bristle distance of 0.50 mm. The bristle tip has a diameter of 0.25 mm, and the core increases with a taper of 2%. The acting part of the bristle starts approximately 1 mm behind the tip.