The invention relates to a dental tool having a shank region, which is formed for coupling to a dental handpiece, and also having a work region, which is connected to the shank region. In this case, the shank region of the dental tool is formed so that there is the possibility of latchable insertion and removal without actuation. In particular, at least the shank region can consist of plastics material. As a result, inter alia facilitated handling of the tool and inexpensive production of the tool are rendered possible.

A toothbrush is disclosed. The toothbrush includes a handle, a brush tip connected to the handle, wherein the brush tip includes a plurality of bristles operably connected thereto, a power source, a direct current motor in selective electrical communication with the power source, wherein the motor includes a drive shaft, a drive assembly connected between the brush tip and the drive shaft, wherein the drive assembly converts rotation of the drive shaft into movement of the plurality of bristles, and a control assembly in electrical communication with the motor and the power source; wherein during operation of the motor, the control assembly monitors a current draw by the motor and adjusts a current applied to the direct current motor based on the current draw.

Embodiments of the present invention comprise a powered toothbrush comprising a bristle head, an outer gear, and a plurality of bristles. Both the bristle head and the outer gear may comprise a distal end, a proximal end, and a center. The distal end of the bristle head may mate with the proximal end of the outer gear. The outer gear may rotate about a first axis of rotation. The mating between the bristle head and the outer gear may cause the bristle head to orbit the first axis of rotation via one or more bristle paths while simultaneously completing one or more rotary movements about a second axis of rotation, which may move along the bristle paths with the bristle head.

A magnetically controlled abrasive system (MCAS) having a magnetic system to manipulate a magnetically controlled unit is provided. More specifically, a track member is operatively coupled to a first magnetic unit and a first surface of a first body. The track member facilitates movement of the first magnetic unit with respect to the first body. A second body is positioned proximal to the first body. More specifically, at least one abrasive protrusion is operatively coupled to a second surface of the second body and a second magnetic unit is operatively coupled to the second body. The first magnetic unit generates a magnetic field which interacts with the second magnetic unit. The interaction controls movement of the second body including movement of the at least one abrasive protrusion positioned in communication with the second body.

A magnetically controlled abrasive system (MCAS) having a magnetic system to manipulate a magnetically controlled unit is provided. More specifically, a track member is operatively coupled to a first magnetic unit and a first surface of a first body. The track member facilitates movement of the first magnetic unit with respect to the first body. A second body is positioned proximal to the first body. More specifically, at least one abrasive protrusion is operatively coupled to a second surface of the second body and a second magnetic unit is operatively coupled to the second body. The first magnetic unit generates a magnetic field which interacts with the second magnetic unit. The interaction controls movement of the second body including movement of the at least one abrasive protrusion positioned in communication with the second body.

Rotating dental systems and related guards and methods are disclosed. In some instances a guard may be configured to prevent material from building up on at least a portion of the dental system. The guard may be configured to prevent materials from being discharged from the dental system. In some embodiments, the guard may also be configured to direct the flow of material along a portion of the dental system. Some guards within the scope of this disclosure comprise bristles.

Rotating dental systems and related guards and methods are disclosed. In some instances a guard may be configured to prevent material from building up on at least a portion of the dental system. The guard may be configured to prevent materials from being discharged from the dental system. In some embodiments, the guard may also be configured to direct the flow of material along a portion of the dental system. Some guards within the scope of this disclosure comprise bristles.

An infinity brush has a flaccid belt configured to define a lemniscate. A plurality of work-contacting segments protrude from and are carried by the flaccid belt. A mechanical drive rotates the flaccid belt. Various embodiments of the flaccid belt include a single lemniscate, a plurality of lemniscates, and various simulated lemniscates. In one embodiment, the infinity brush bristle includes non-cylindrical brush bristles with a longitudinal shaft having at least one diameter transition, while other bristles comprise beads of various oval, circular, and cylindrical geometries.

An infinity brush has a flaccid belt configured to define a lemniscate. A plurality of work-contacting segments protrude from and are carried by the flaccid belt. A mechanical drive rotates the flaccid belt. Various embodiments of the flaccid belt include a single lemniscate, a plurality of lemniscates, and various simulated lemniscates. In one embodiment, the infinity brush bristle includes non-cylindrical brush bristles with a longitudinal shaft having at least one diameter transition, while other bristles comprise beads of various oval, circular, and cylindrical geometries.

Rotating dental systems and related guards and methods are disclosed. In some embodiments a guard is configured to prevent material from building up on at least a portion of the dental system. In some embodiments the guard is configured to prevent materials from being discharged from the dental system. In some embodiments, the guard is configured to direct the flow of material along a portion of the dental system. Some guards within the scope of this disclosure include bristles.