Dentists almost universally recommend using an electric toothbrush. Making the upgrade from a regular brush can be expensive — but it doesn’t have to be.

The ProSonic Ultra Whitening Sonic Toothbrush is one of the best electric brushes on the market right now, with four cleaning modes and a powerful motor. It normally sells for $79.99, but Christian Post readers can order now for only $29.99.

If you wish for a whiter smile this year, upgrading to the ProSonic is a smart move. While regular brushing only provides a partial clean, this powerful electric brush rotates at 40,000 rpm to dissolve stains and remove plaque.

With the ProSonic, you can choose how fast you want the brush head to spin. Gentle mode is good for sensitive teeth, and Daily mode provides a good middle ground. If you want to attack plaque, you can choose Polish or Whiten mode.

The brush runs for 21 days on a full charge, but there is a two-minute timer to prevent overbrushing. In addition, the ProSonic is completely waterproof.

Order now for $29.99 to pick up the ProSonic brush and charging station along with four spare brush heads, worth $79.99 in total.