SAVE $50: As of Jan. 7,?? ?? ?? the Oral-B iO Deep Clean electric toothbrush is on sale for $99.99 at Amazon. That's a saving of 33% on list price.

We all know the rule; every three to four months we should be throwing out our toothbrushes and replacing them. After this time they become less effective, they harbor bacteria and the bristles start to become damaged. But how many of us actually do this? If you're as guilty as us, you might want to check out Amazon's latest deal on this electric toothbrush.

As of Jan. 7, the Oral-B iO Deep Clean electric toothbrush is reduced to $99.99. It comes in black or white and includes three different brush heads, a charger, and a travel case.

According to stats from Oral-B, you'll remove 100% more plaque with an electric toothbrush over a manual. The toothbrush also uses an iO pressure sensor to indicate if you're using the right amount of pressure to not only clean your teeth efficiently but to ensure you're not damaging your gums.

There are five different cleaning modes: Daily Clean, Sensitive, Whitening, Super Sensitive, and Intense, so you can personalize your teeth brushing experience based on your needs. It also benefits from a Lithium-ion battery, perfect for use when traveling and on the go, without needing constant recharges.

Convinced yet? Head to Amazon to get this deal now.