I was always in camp manual, but my dentist adviced me a couple of years ago to switch to electric.

As I got older the wear and tear on my gums was showing. As you might know gums don't grow back or recover very well. I was putting more wear on my gums than necessary by manual brushing, even with me taking care not to brush too hard. An electric brush can get the job done without putting undue pressure or wear on my gums. It alerts me if I brush too hard, go too slow or too fast.

My dental health is excellent (for being an old man) and my dentist alerted me before it became a problem. Recently went for a checkup and he showed me how good my gums were looking, happy to have made the switch.