I used Sonicare as recommended by my dental hygienist. Since I've started using it, my 6 months cleaning at the dentist have been less work for the hygienist since the brush really knock off any tartar from accumulating so less scraping at the gum level (or so she says). It's definitely a lot easier brushing with those odd angles brushing manually. With the Sonicare I just have to put the brush head in the right location and let it do its thing.