Abstract: An electric toothbrush handpiece having at least one interface for coupling to a brush attachment, at least one housing, at least one drive unit for driving the interface, which is received in the housing, and at least one energy store for supplying energy to the drive unit. The electric toothbrush handpiece includes at least one fix frame unit which is arranged in the housing and which is implemented as a single piece and which at least partially receives the drive unit and the energy store, wherein the frame unit forms multiple receptacle regions at least for the drive unit and the energy store, which receptacle regions are positioned in a defined manner relative to one another in particular both in an assembled state and in an unassembled state of the frame unit, wherein the frame unit extends axially over the entire drive unit and the entire energy store.

Abstract: A brush attachment for a toothbrush handpiece, in particular for an electric toothbrush handpiece, has a head portion which includes a brush head, has an attachment portion which includes an interface receptacle, and has a neck portion arranged between the head portion and the attachment portion, wherein the interface receptacle is implemented by a universal interface receptacle for receiving at least two different interfaces of different toothbrush handpieces.

Abstract: A brush attachment for a toothbrush handpiece, in particular for an electric toothbrush handpiece, has a head portion which includes a brush head, has an attachment portion which includes an interface receptacle, and has a neck portion arranged between the head portion and the attachment portion, wherein the interface receptacle is implemented by a universal interface receptacle for receiving at least two different interfaces of different toothbrush handpieces.