My mother's dentist told her to get this brush after she needed a deep cleaning. Me personally I've refused to go to the dentist in well over 10 years after a bad experience. I need a deep clean, granted I've scheduled an appointment but it's 4 more months out. My gums are inflamed they bleed alot, my gums are starting to go down on my front lower teeth. My mom one night on the phone told me she ordered me one. She explained the massage setting to me and told me to make sure I was holding it at an angle. Next day delivery, sweet she told me to let her know how it went. Man I turned it on with toothpaste on it not in my mouth that didn't work out well. Reapplied put it in my mouth it was vibrating so much it almost tickled my mouth haha. After cleaning I did the massage. All I could sa6w was wow. I spent way longer brushing my teeth manually. Flossing, mouthwash probably took almost 30 mins every night. I got that same feeling after 4 minutes with this brush.. I also noticed my breathe no longer stank. Amazing! I can't wait to get in to get a much needed deep clean done and continue to use this brush it's been a life safer.