Patent ID: 7213995

Claim:
A toothbrush for the prevention and treatment of tooth sensitivity, comprising: a) main cylinder having a tube attached to one of the extremes of the said cylinder; b) a head attached to the extreme of the said tube and located substantially in at the opposite side wherein the cylinder is attached to the said tube; c) a manual color-code lever having a first colored side and a second colored side attached to the said tube; d) at least two bristle groups, one in the upper side of the said head and other in the lower side of the said head; wherein the upper bristle group has first inner bristles and first outer bristle and wherein the lower bristle group has a second inner bristles and second outer bristles; wherein the said upper bristles are shorter in length than the said lower bristles and; wherein said first outer bristles are shorter in length than the said first inner bristles and; wherein said second outer bristles are shorter in length than said second inner bristles and; wherein the said head comprises a desensitizing agent outlet and said main cylinder contains a disposable desensitizing agent cartridge.