Perhaps it's not as effective as the sonic treatment brush.
Duaneanstey
https://Sites.google.com/view/tao-clean-review-4d3e3276/comprehensive-tao-clean-review-and-user-experiences
Zac Partain is a study Chemistry from Hoogeveen
Zac Partain is a study Chemistry from Hoogeveen
Typically, I like the small oval brush head and slim neck of the Sonicare variety, too.