No, Sonicare will not harm your gums and our toothbrushes have been shown in studies to be gentler on dentin than a manual or an oscillating toothbrush. While gentle, Sonicare technology cleans effectively by:

Gently whipping toothpaste and saliva into an oxygen-rich foamy liquid;
Directing the liquid between and behind teeth, and along the gum line where plaque bacteria flourish;
Gently massaging the gums, stimulating blood circulation and helping to dislodge plaque.

Also,  DiamondClean, FlexCare+ and FlexCare toothbrushes come with special Gum Care and massage modes to assure even more comfort for sensitive gums. Gum Care mode provides two minutes of complete whole mouth cleaning, with one additional minute of gentle cleaning for problem areas and along the gum line.Massage mode uses our patented technology to drive fluids to stimulate gums, resulting in healthier gums.