Abstract: A torque wrench for preventing transmission of torque in excess of a threshold level to avoid damage to replaceable scaler tips and hand pieces of ultrasonic dental instruments. The torque wrench has a housing with a core seated therein, with a cam mechanism or spring engagement between the core and the housing, such that the core may remain stationary when the housing is rotated passed the threshold level of torque. The core has an axial bore to receive a connecting shaft of a scaler tip, such that a working end and a functional shank of the scaler tip are received in a chamber of the housing, with the housing acting as an isolation cage for the scaler tip.

Abstract: An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. Alternately, an adaptor can be inserted into the handpiece. The adaptor slidably receives a conventional ultrasonic insert. The conventional insert can be easily rotated with a force applied only thereto, relative to the handpiece.

Abstract: A low flow ultrasonic insert has an internal fluid flow channel which extends between an operative tip geometry and a body portion of insert. The channel terminates at the tip geometry with a fluid flow output. A fluid flow input is provided for the channel in the body portion where a transverse slot intersects the channel.

Abstract: An ultrasonic insert insertable into a handpiece for carrying out a dental treatment is easily rotatable by a practitioner with only two fingers. The body of the insert is clamped via a torque lock element which carries a plurality of radially extending barbs which lock a handle thereto. The handle is locked to the torque lock element and is not movable relative thereto either axially or rotatably.

Abstract: An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. Alternately, an adaptor can be inserted into the handpiece. The adaptor slidably receives a conventional ultrasonic insert. The conventional insert can be easily rotated with a force applied only thereto, relative to the handpiece.

Abstract: An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. Alternately, an adaptor can be inserted into the handpiece. The adaptor slidably receives a conventional ultrasonic insert. The conventional insert can be easily rotated with a force applied only thereto, relative to the handpiece.

Abstract: An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. Alternately, an adaptor can be inserted into the handpiece. The adaptor slidably receives a conventional ultrasonic insert. The conventional insert can be easily rotated with a force applied only thereto, relative to the handpiece.

Abstract: An ultrasonic insert insertable into a handpiece for carrying out a dental treatment is easily rotatable by a practitioner with only two fingers. The body of the insert is clamped via a torque lock element which carries a plurality of radially extending barbs which lock a handle thereto. The handle is locked to the torque lock element and is not movable relative thereto either axially or rotatably.

Abstract: An ultrasonic insert carries a rotary bearing adjacent to the transducer. The bearing slidably engages an ultrasonic handpiece. When seated in the handpiece, the insert is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. Alternately, an adaptor can be inserted into the handpiece. The adaptor slidably receives a conventional ultrasonic insert. The conventional insert can be easily rotated with a force applied only thereto, relative to the handpiece.