A surgical burr includes prevention part, a shaft and a working part including at least one cutting or grinding surface for processing of a material selected from a bone, a cartilage, a calcified tissue, a tooth and a foreign object within a patient body. The prevention part is configured to have a first position and a second position. In the first position, it at least partially prevents the cutting or grinding surface from processing the material, when a force applied to the prevention part is less than a predetermined amount of force. In the second position, it allows the cutting or grinding surface to process the material, when the force applied to the prevention part is equal or higher than the predetermined amount of force.

The invention concerns a surgical drill bit able to be connected to a surgical tool, comprising a flexible stem. The invention also concerns a corresponding method to produce the surgical drill bit.

A zygomatic implant guide apparatus includes a first surgical guide conforming to a patient's maxillary region, and a second surgical guide that also conforms to the patient's maxillary region. The first and second surgical guides include maxillary sinus windows, and the second surgical guide includes at least one bushing sleeve. A bushing is provided for insertion into the bushing sleeve, extending into the patient's maxillary sinus in order to engage and govern the position of a zygomatic implant drill as it travels through the patient's maxillary sinus to engage the patient's zygomatic bone.

A scan posts system with scan posts is presented. Each scan post includes a scan post core and a scan post body surrounding the core and resting in the shoulder of the core. At least part of the scan post body is intended to be in contact with healing tissue. Each scan post body belongs to a group of scan post bodies including at least a combination of two different shapes with three different sizes and at least one height. Each scan post body includes at least one scan mark suitable for providing information about the shape, size and height of the scan post to a scanning device, this information being useful for designing a dental implant prosthesis. A method of manufacturing a dental implant prosthesis using such a system is also presented.

A method of surface treating a drill, the drill including a shaft extending along a central longitudinal axis from a proximal end to a distal end, the proximal end of the shaft including a shank adapted for connection to a rotary driver, the shaft further including, distal of the shank, a fluted section including at least one flute extending along the longitudinal length of the fluted section, the method including the steps of: acid etching at least a portion of the fluted section of the shaft in order to create a visible matted effect, subsequently electro-polishing at least the portion of the fluted section of the shaft in order to visibly reduce the matted effect and subsequently creating one or more visual marking within the portion of the fluted section of the shaft.

In an embodiment, a multi-implant driver device for dental implant prosthesis is provided. The device comprises a housing body, four dental implant drivers, and a front head for guiding the implant drivers. Said front head is positioned at a front end of the housing body. A pressing piece is positioned in a chute on the said housing body and simultaneously connected with a tail end of a spring. A fixed seat for supporting and fixing a refill and the spring are arranged in the housing body. Said drivers pass through the spring on the fixed seat and are assembled in front head. A top plug with a gap is arranged at the tail end of the said housing body. When the driver is changed, the gap of the top plug is aligned with a central line of the chute of the said housing body by rotating the top plug.

The invention relates to a superstructure support (20) as part of a prosthetic tooth replacement (1) between an implant body (10) and a superstructure, comprising a hollow implant post (23), a hollow implant pin (50), and an implant flange (31) lying therebetween. The cavity zones (67, 62) of the implant post (23) and of the implant pin (50) transition into each other. The cavity zones have respective center lines (69, 63), which include an angle of 60 to 86 angular degrees. The cavity zone (62) of the implant pin (50) has a screw head seat surface (65) that widens toward the implant flange. At least some areas of the implant flange form a supporting enveloping surface (37), which is oriented toward the implant post (23) and the outer edge (33) of which spans a reference plane (38), which is perpendicularly intersected by the center line (69) of the post-side cavity zone (67). The center lines of the implant post (23) and of the implant pin (50) intersect or cross below the reference plane (38). By means of the invention, a superstructure support (20) for the prosthetic tooth replacement is improved in such a way that a secure and lasting screwed connection to the implant body is ensured.

A temporary alignment system and method for holding a dental coping to an implant abutment using the same threads in the abutment that are used for definitive attachment are disclosed. The disclosed temporary fasteners initially orient and hold a coping against an abutment with a force along the same axis as the semi-definitive screw. The aligned coping can be picked-up in a closed-tray impression process without unscrewing the temporary fastener. Embodiments include threaded posts that release copings from the abutment through axial forces. Some embodiments include a threaded post with separable cap that is picked-up with the coping. Methods for converting an existing prosthesis for screw attachment to implants in a single visit and digital capture of the converted prosthesis are described.

The invention provides a dental milling tool for milling dental materials in the making of dental prostheses. The dental milling tool is a ball-nose end mill having three helical flutes, each flute being associated with a cutting edge, each cutting edge having chip breakers along the curved edges of the ball. The dental milling tool may be formed from a hard material such as carbide based material, ceramic, cermet, superhard materials including polycrystalline diamond (PCD) and cubic boron nitride (CBN), and diamond composite. Alternatively, the dental milling tool may be coated with a hard coating such as diamond coating, diamond-like-carbon (DLC), nitride based coating such as titanium aluminium nitride (TiAIN), aluminium titanium nitride, (AITiN), and titanium nitride (TiN), and ceramic coating.

A twisting instrument for a screw-in component with a tool recess comprises a drive shaft, a neck, and a working part. The working part has—as a spherical head having a plurality of teeth—a spherical enveloping surface that is contacted at least both by the free end and by sections of the tooth heads of the teeth of the working part. The neck or the drive shaft has a predetermined breaking zone. The working part engages in the tool recess of the screw-in part in an overload-proof and reliable manner.