Abstract: A training system includes a tool connected to a control module. The tool includes a tip and a grip having two or more force sensing transducers configured to enable determination of sensor force measurement data. The control module receives the sensor force measurement data. The control module includes a storage device configured to store zeroed force data, and a data processing unit including a processor and memory storing instructions that, when executed by the processor, cause the processor to obtain the sensor force measurement data and the zeroed force data; determine, based upon the sensor force measurement data and the zeroed force data, a load force magnitude that is independent of grasp forces; determine whether the load force is within a set range; and, provide a corresponding indication where the load force is within the set range and/or where the load force is outside of the set range.

Abstract: A cordless ultrasonic dental scaler system includes an enclosure configured to be handheld, an ultrasonic acoustic assembly disposed at least partially within the enclosure, a rotatable grip coupled to the acoustic transformer of the ultrasonic acoustic assembly at a nodal area of the acoustic transformer, an electronic control system disposed within the enclosure and configured to energize the ultrasonic acoustic assembly, a battery disposed within the enclosure and configured to power the electronic control system, a fluid source disposed within the enclosure and containing a fluid. There is a metered flow rate of the fluid from the fluid source that is controlled by the electronic control system.

Abstract: A training system includes a tool connected to a control module. The tool includes a tip and a grip having two or more force sensing transducers configured to enable determination of sensor force measurement data. The control module receives the sensor force measurement data. The control module includes a storage device configured to store zeroed force data, and a data processing unit including a processor and memory storing instructions that, when executed by the processor, cause the processor to obtain the sensor force measurement data and the zeroed force data; determine, based upon the sensor force measurement data and the zeroed force data, a load force magnitude that is independent of grasp forces; determine whether the load force is within a set range; and, provide a corresponding indication where the load force is within the set range and/or where the load force is outside of the set range.

Abstract: A magnetostrictive ultrasonic dental scaler is disclosed. The magnetostrictive device comprises an oscillator adapted to provide electrical energy including a current and a voltage signal, a handpiece having a tool tip which vibrates in response to the electrical energy supplied to the handpiece and a control circuit. The control circuit includes a phase detector adapted to detect phase between current and voltage signals and to generate a phase detection signal as a function of the phase. The control circuit also includes a digital signal processor operatively connected to the phase detector. The digital signal processor adapted to process the phase detection signal through a digital loop filter to generate an error signal.