Both brands of electric toothbrushes have their own unique features that may be beneficial for gum health. Oral-B toothbrushes are best known for their oscillating-rotating brush head, designed to remove plaque from hard-to-reach areas. Sonicare toothbrushes, on the other hand, use sonic technology to create vibrations that help dislodge plaque and improve gum health. The best electric toothbrush for gum disease depends on your preference and needs.