A device comprises a plurality of electroactive material actuator units arranged as a linear set. Data for controlling the driving of the individual units is provided on a data line, and data line connections are made between each adjacent pair of electroactive material actuator units. The electroactive material actuator units are controlled in dependence on received data from the data line. This provides a reduced complexity of the wiring when multiple actuators need to be addressed and controlled in small application environments.

A device comprises a plurality of electroactive material actuator units arranged as a linear set. Data for controlling the driving of the individual units is provided on a data line, and data line connections are made between each adjacent pair of electroactive material actuator units. The electroactive material actuator units are controlled in dependence on received data from the data line. This provides a reduced complexity of the wiring when multiple actuators need to be addressed and controlled in small application environments.

A dental syringe tip system for attachment to a dental syringe. The dental syringe tip system can include components such as an outer core, an inner core, and a carrier which can be combined in a multitude of combinations to achieve different fluid flow characteristics, such as discharge pressure and discharge pattern, through the dental syringe tip. The outer core and inner core can have passages designed to modify fluid flow characteristics. In addition, the outer core and inner core can have additional connectors for receiving fluids from sources other than a dental syringe. Some or all of the components can be separate to be assembled by a manufacturer or an end-user. Assembly of multiple components can be facilitated by retention features located on the components.

A dental syringe tip system for attachment to a dental syringe. The dental syringe tip system can include components such as an outer core, an inner core, and a carrier which can be combined in a multitude of combinations to achieve different fluid flow characteristics, such as discharge pressure and discharge pattern, through the dental syringe tip. The outer core and inner core can have passages designed to modify fluid flow characteristics. In addition, the outer core and inner core can have additional connectors for receiving fluids from sources other than a dental syringe. Some or all of the components can be separate to be assembled by a manufacturer or an end-user. Assembly of multiple components can be facilitated by retention features located on the components.

A micro-scale mist teeth cleaning device includes console creating air under pressure and water under pressure. The console is connected to a mouthguard that is in the form of an outer ridge and an inner ridge with space in between for the teeth of a patient. The mouthguard includes a receptor for receiving the air and water under pressure, and has tubes for separately distributing the air under pressure and the water under pressure along the outer and inner ridges. The mouthguard further includes openings along the inner side of the outer ridge and the outer side of the inner ridge facing the location of the patient’s teeth when the mouthguard is installed in the patient’s mouth. The tubes for the pressurized air and the water intersect at each opening at an angle such that they act to eject a micro-scale mist from the opening onto the user’s teeth, thereby providing initial dental plaque removal.

A micro-scale mist teeth cleaning device includes console creating air under pressure and water under pressure. The console is connected to a mouthguard that is in the form of an outer ridge and an inner ridge with space in between for the teeth of a patient. The mouthguard includes a receptor for receiving the air and water under pressure, and has tubes for separately distributing the air under pressure and the water under pressure along the outer and inner ridges. The mouthguard further includes openings along the inner side of the outer ridge and the outer side of the inner ridge facing the location of the patient’s teeth when the mouthguard is installed in the patient’s mouth. The tubes for the pressurized air and the water intersect at each opening at an angle such that they act to eject a micro-scale mist from the opening onto the user’s teeth, thereby providing initial dental plaque removal.

An intra oral scanner (IOS) including a probe is disclosed. Optionally, the probe is calibrated to measure locations at a higher accuracy than the IOS. For example, the probe may be used to locate points in a 3D map at high precision and/or the points used to increase the precision of location of other points and/or surfaces in the map. In some embodiments, the probe includes a sensor. Optionally, the probe may be used to measure locations that are hard to view with the IOS. For example, the IOS probe combination may be used to produce 3D maps of a recess in a tooth and/or gums and/or a periodontal pocket and/or to traduce a 3D map or periodontal disease. In some embodiments the probe may be used to measure physical properties, for example, the IOS probe combination may be used to produce a 3D image of hardness of mucosa.

A device, method, and system are provided for treating the oral cavity. The device includes a mouthpiece suitable for implementing a dental treatment, wherein the mouthpiece includes one or more stock elastomeric dental cover layers suitable for forming and maintaining a treatment cavity having a vacuum fluid seal, wherein the dental cover layers includes a layer over all the surfaces of the upper teeth and surrounding gums and/or a layer over all the surfaces of the lower teeth and surrounding gums, wherein each of the layers includes one or more hardened rigid or semi-rigid sections for enabling selected and/or differential collapsibility of the cover layers when exposed to vacuum pressure; and one or more treatment supply layers, and one or more flow channels in fluid communication with the treatment cavity so that the treatment supply layer can deliver and/or remove one or more treatment fluids from the one or more fluid sealed treatment cavities.

An air-water syringe device created with a cylinder enclosing separate water and air channels designed to allow the air channel to be diverted by a minimum of 2 guide vanes at the exit of the device to direct the water flow as desired by the user. A minimum of 1 air channel is disclosed which encompasses the entire inner circumference of the cylinder of the device. The inclination of the guide vanes can be designed with desired angles but typically the angle of inclination of the guide vanes is between a range of 46° and 28°. The device can be designed with a flexible section and with finger grips as desired.

An air-water syringe device created with a cylinder enclosing separate water and air channels designed to allow the air channel to be diverted by a minimum of 2 guide vanes at the exit of the device to direct the water flow as desired by the user. A minimum of 1 air channel is disclosed which encompasses the entire inner circumference of the cylinder of the device. The inclination of the guide vanes can be designed with desired angles but typically the angle of inclination of the guide vanes is between a range of 46° and 28°. The device can be designed with a flexible section and with finger grips as desired.