What Does It Mean That the 4th Row Is Made of Silicone?

At autobrush, we're committed to giving you the best brushing experience possible. That's why our brush heads feature a unique 4th row made of silicone bristles, called GumDefend™️.

Gentle Gum Stimulation

Silicone bristles are softer and less abrasive than nylon, making them perfect for massaging your gums (but ineffective at cleaning teeth, which is why the rest of the brush head uses nylon bristles.) This gentle stimulation by the 4th row of silicone promotes healthier gum tissue and can help prevent gum issues like gingivitis.

Enhanced Cleaning Along the Gumline

While the nylon bristles effectively remove plaque from the surfaces of your teeth, the silicone bristles extend just a bit further to reach along the gumline. This ensures a more comprehensive clean where it matters most.

Ideal for Sensitive Gums

If you have sensitive gums, you'll appreciate the softness of silicone bristles. They provide a comfortable brushing experience without compromising on cleanliness.

Want to know more about how our brush heads are designed? Check out our article on how the brush heads have evolved to what autobrush is offering today.