If anything, an electric brush will keep your enamel strong and healthy longer!

Manual brushes are very technique sensitive, so most people don’t do a perfect job. This can include not brushing for long enough, pressing too hard, not reaching all the surfaces, and a lot more. 

With this you risk damage to you gums (gingivitis, periodontitis) and your teeth (wearing away the enamel causing your teeth to be weaker, more sensitive, and more prone to cavities.) 

An electric toothbrush pretty much eliminates technique all together. It does the work for you, you just have to make sure you cover all surfaces of your teeth. You’re no longer scrubbing or brushing, just holding the brush to your teeth. 

Most of the new ones have sensors telling when you’re using too much pressure, so wearing away enamel really isn’t a concern as long as you’re listening to your toothbrush.