An assembly with a handpiece assembly configured to receive electromagnetic energy and fluid, and to selectively deliver the electromagnetic energy and/or the fluid to a target surface. The handpiece assembly includes a handpiece housing and a plurality of fluid lines extending through the handpiece housing. The plurality of fluid lines can transfer fluid from a proximal end of the handpiece assembly to a distal end of the handpiece assembly. A spray mixer can be positioned at the distal end that is coupled to fluid lines of the plurality of fluid lines. An air input port can be positioned at the proximal end that is configured to be coupled to an auxiliary air hose, and an air delivery channel can be coupled to the air input port, and can supply air to a tip of an exchangeable applicator that can be coupled to the distal end of the handpiece housing.

A dental valve device has a valve body having a tip receiving end having a flexible tubing extending outwardly from the tip receiving end with the flexible tubing having a flexible tubing opening, a hose receiving end, a lumen formed between the flexible tubing opening and the hose receiving end, and a partial opening formed in the valve body, and a rotatable valve sealing body adapted to be inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the flexible tubing opening and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening.

A foot control unit enables a dentist to operate a dental hand piece using the dentist's knowledge of selected positions of the control unit, along with the ability of the dentist to feel when the control unit is in a selected position.

A dental laser system for treatment of hard and/or soft tissue includes a main chamber housing optical and primary fluid supply subsystems, for directing a laser beam and fluid to a treatment area. A hand piece affixable to the main chamber, includes mating optical and secondary fluid supply subsystems. The hand piece can be rotatable or re-orientable about an optical axis within the hand piece. A lock can maintain a selectable angular orientation of the hand piece relative to the main chamber. A coupling can maintain a fluidic communication between the primary and secondary fluid supply subsystems even when the hand piece is rotated or re-oriented. A sensor and controller can sense a selected angular orientation of the hand piece and adjust the main optical subsystem according to the sensed angular orientation, to align the two optical subsystems. The laser may be controlled using a variable speed foot pedal.

A system for dental tissue treatment includes a system for directing a laser beam to an area of dental tissue to be treated, and a fluid-delivery system for directing and controlling a flow of a fluid. The fluid is directed to at least a portion of the area to be treated and the fluid flow is controlled to substantially prevent both a change in laser energy absorption by the dental tissue and attenuation of treatment efficiency due to fluid interference with the laser beam. The fluid present in at least a portion of the area to be treated may prevent or reduce the likelihood of melting of enamel in that area.

According to various implementations, a dental cleaning device includes a steam conduit and a cooling fluid conduit. The steam conduit has a distal tip with an opening defined therein that allows steam to be applied intraorally close to a dental implant to flush away bacteria that has colonized on or adjacent the dental implant. The cooling fluid conduit has a distal tip with an opening defined therein that allows a cooling fluid to be applied intraorally close to the dental implant following the application of the steam to cool the tissue and prevent overheating of the tissue and bone adjacent the dental implant. For example, the cooling fluid may be applied intermittently with the steam, or the cooling fluid may be applied continuously while the steam is applied intermittently, according to various implementations.

Various types of medical devices incorporating a light therapy system are disclosed. In at least one embodiment, the medical device provides an ultrasonic driver and a light therapy driver. The ultrasonic driver provides an ultrasonic vibration signal output port and is configured to discharge an ultrasonic frequency vibration signal therefrom. The light therapy driver provides a laser light output port and is configured to discharge laser light therefrom. A handpiece housing of the medical device provides an input assembly connected to each of the ultrasonic vibration signal output port and laser light output port. The input assembly provides an ultrasonic tip assembly configured to output each of the vibration signal and laser light at an operational end of the tip assembly. Thus, the vibration signal and laser light are capable of being simultaneously or alternatingly delivered via the tip assembly.

A device for filling a container, such as a dispensing tip, with a powdered or liquid material, and methods of use of the device are disclosed. The device generally includes a vacuum manifold having at least one port, and a vacuum source for creating a negative pressure in the vacuum manifold. The device may further include at least one container having an axial bore therethrough, a proximal end, and a distal end which includes a stop positioned therein. The negative pressure created in the vacuum manifold by the vacuum pump is sufficient to pull the powdered or liquid material through the distal end into the axial bore of the at least one container. A clearance between an outer surface of the stop and an inner wall of the container is configured to prevent passage of the powdered or liquid material.

A coupling device for detachably connecting a medical or dental instrument to a drive unit or a supply hose for transfer of at least one of data, energy, a driving movement and a working medium between the drive unit or the supply hose and the instrument includes a first coupling element and a second coupling element. One of the coupling elements includes a coupling recess and the other includes a coupling protrusion insertable therein. One of the coupling elements includes a positioning element and the other includes an indentation into which the positioning element can be inserted to position the coupling elements in a defined angular position about a shared axis. One of the coupling elements includes a memory unit for storage of data and the other includes a transfer unit, so that data can be transferred from the memory unit by the transfer unit to the other coupling element.

A handpiece maintenance system and method identifies a dental handpiece and operates in a diagnostic cycle to power the handpiece and determine predictive maintenance condition thereof. The handpiece maintenance system includes a temperature sensor and/or an acceleration sensor to measure the conditions of the handpiece during the diagnostic cycle. The predictive maintenance condition of the handpiece is based on data from the diagnostic cycle and other stored data for the identified handpiece. A system is also configured to determine a predictive maintenance condition of the handpiece based on sensor data read from a handpiece and historical usage data thereof.