"My family shares the handle, and we just switch the head when we want to use the toothbrush. This saves space and money, but also, I've found that it's hard to take the heads off without touching the bristles." - Professor
"I was told by my dentist that I was damaging my gums because of how much force I use to brush my teeth. I wish there was some way to tell." - Undergraduate Student

© 2018 by Kaymie Shiozawa