Method and system for implanting an implant (20, 130) in a bone (12) is provided. An osteotomy (10) having a first transverse cross-sectional shape is formed in a bone (12). An implant (20, 130) having a second transverse cross-sectional shape is inserted into the osteotomy (10), the transverse cross-sectional shape of the implant (20, 130) being different from the transverse cross-sectional shape of the osteotomy (10). The invention further relates to a preparation tool (100) for forming a non-circular cavity (10) in bone tissue (12). The preparation tool (100) comprises a proximal portion (102) and a distal portion (104). The distal portion (104) has a main body (106) and at least one bone removing element (108). At least apart of the at least one bone removing element (108) extends radially outward beyond an outer circumference of the main body (106). Moreover, the invention relates to a kit comprising the preparation tool (100) and an implant (130), such as a dental implant. Also, the invention relates to a kit comprising the preparation tool (100) and a tool guiding means, such as a surgical template.

A device for determining a contour of a dental treatment area during treatment thereof includes a laser beam guidance system and an imaging system. The laser beam guidance system can guide a laser beam and, optionally, a scanning light to a dental treatment area, and the imaging system, which can include an adjustable focus image sensor, can obtain an image of the dental treatment area based on light rays reflected therefrom. The device also includes a computation system to compute a contour, e.g., a 2D contour, of a surface of the dental treatment area based on the image obtained by the imaging system and, optionally, geometries of one or more components of the laser beam guidance system and/or optical components associated with the imaging system.

The present invention relates to a laser three-dimensional processing system, and more particularly, to a laser three-dimensional processing system capable of forming a pattern or cutting, marking, welding, milling or welding while scanning an object for dental prosthesis.

The laser three-dimensional processing system of the present invention employs a laser scanning method in which laser beam is formed on an object by using a reflection mirror without a laser head, thereby improving the processing speed from several tens to hundreds of times. That is, instead of transferring a heavy laser head, transferring a few tens of grams of a light reflective mirror can reduce the inertia of several tens to hundreds of times, resulting in a high speed, high precision curve and three dimensional processing can be performed.

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.

An oral irrigator includes a base having a pump mechanism, a reservoir housed within the base and fluidically connected with the pump mechanism. A handle with a jet tip is connected with an outlet from the pump mechanism to receive a pressurized fluid stream from the reservoir to direct a fluid at a surface inside an oral cavity. The oral irrigator also includes a radiant energy source and delivery system for directing radiant energy at a surface inside an oral cavity.

The invention relates to a method and an arrangement for the cleaning of a circumferentially closed canal by means of a light guide conducting a laser beam, wherein the entry of the laser beam into the light guide is interrupted when the free end of the light guide is outside of the canal and/or the movement of the light guide within the canal is monitored and if there is no movement or the movement is below a first threshold value then a signal is triggered and/or the laser radiation is turned off or its output is reduced, and wherein the turning off of the laser radiation or its reducing is controlled in dependency of at least one signal change and/or a second threshold and/or a signal change relative to the second threshold determined during at least one course of time starting before and including the entry of the light guide into the canal.

A laser-based system and method for treatment of hard tissue enhances remineralization and fluoride uptake to improve resistance to demineralization. The system can include a laser source, an optic, and a controller for controlling the laser source and/or the optic to deliver radiation to a treatment region with desirable characteristics (e.g., to remove carbonate without damaging the tissue surface). In some cases, the system includes a handpiece having an optical element (e.g., a lens) mounted within a replaceable cartridge and adapted to modulate a laser beam to render the beam non-ablative, prior to the laser beam's delivery to the treatment region. In some embodiments, treatment with the laser can be combined with a fluoride treatment for enhanced therapeutic effect.

A peeling type laser tooth preparing method, apparatus and device, and a medium. Method comprises: acquiring a first STL model of a target tooth and a second STL model of a tooth preparation of the target tooth; generating a conical peeling curved-surface STL model, in a manner of taking a three-dimensional curve of a peripheral edge contour of a shoulder in the second STL model as a bottom edge; carrying out Boolean calculation on the peeling curved-surface STL model and the first STL model to obtain a third STL model; carrying out Boolean calculation on the second STL model and the third STL model to obtain a fourth STL model required to be removed; generating a multilayer laser cutting path according to the fourth STL model, controlling a laser tooth preparing device to perform the tooth preparing process of the target tooth according to the multilayer laser cutting path.

Some aspects relate to systems and methods for dental treatment and verification. An exemplary system may include a laser configured to generate a laser beam as a function of a laser parameter, a beam delivery system configured to deliver the laser beam from the laser, a hand piece configured to accept the laser beam from the beam delivery system and direct the laser beam to dental tissue, a sensor configured to detect a treatment parameter as a function of a treatment phenomenon; and a computing device configured to receive the treatment parameter from the sensor; and determine aggregated treated surfaces as a function of the treatment parameter.

Some aspects relate to systems and methods for estimating a trend associated with dental tissue. An exemplary system may include a sensor configured to periodically detect a plurality of oral images representing a plurality of exposed tooth surfaces and a computing device configured to receive the plurality of oral images from the sensor, aggregate a first aggregated oral image as a function of a first plurality of oral images detected at a first time, aggregate a second aggregated oral image as a function of a second plurality of oral images detected at a second time, and estimate a trend as a function of the first aggregated oral image and the second aggregated oral image.