Toothbrush-Adult Soft plus Refill Terradent 0 Kit

. Look at the underside of TerrAdent's Replacement Head. Our unique thermowelded technology fuses together each individual bristle, creating a solid head. Thermowelding eliminates spaces between the bristles where harmful bacteria hide and breed. Your bacteria-laden toothbrush can spread harmful bacteria to all parts of your mouth In tests conducted at a leading Dental School, TerrAdent demonstrated the lowest bacterial load of all brands tested.