Colgate Gum Health Extra Soft Toothbrush If you prefer a manual toothbrush to an electric one, consider switching to a brush with soft bristles to minimize gum irritation, like the Colgate Gum Health Extra Soft Toothbrush ($14 for a four-pack). Image Source: amazon.com Colgate Gum Health Extra Soft Toothbrush $14 from amazon.com Buy Now