A dental surgical article is manufactured by combining one or more isocyanates with one or more polyols including at least one polyol that has a molecular weight of at least 2000.

A stable affixation system for dental implantation includes a fixation tray having, for rapid placement, a housing defining a chamber whose inner surface is configured to house a flowable or malleable material and be placed over one or more teeth during guided dental implantation surgery. A central portion not configured to flex is situated between housing side walls. Each such side wall has an upper side portion and a lower side portion. Without the lock a squeezing force on the upper side portions flexes the lower side portions outward. The lock urges the upper side portions outward so as to flex the lower side portions inward. The lock reduces or eliminates freedom of movement of the tray. The system allows rapid removal and is sturdy enough to withstand forces including from various angles and leverage. The central portion may hold registration elements.

Tools and methods for expanding a precursor hole in a host material to receive a fixture. The precursor hole is enlarged by a rotary tool having helical flutes and interposed lands. The flutes have a negative rake angle. The lands each have a working edge that cuts the host material when the tool is rotated in a cutting direction, and that condenses the host material when the tool is rotated in a densifying direction. The body of the rotary tool has a stopper section that plugs the hole when a certain depth is reached. When the tool is used with a copious wash of irrigating fluid at or below the necessary depth, hydraulic pressure builds inside the precursor hole. The hydraulic pressure can be advantageously exploited in cutting mode to autograft a slurry of host material particles into the sidewalls of the hole and create an incipient densifying crust.

A device for anchoring to the upper jaw bone dental prostheses of the upper dental arch using a plurality of intraosseous screws each provided with a thread and a bottom shank. A crosspiece with a plurality of nuts corresponding to the number of intraosseous screws are connected together by means of spacers, each nut having a female thread corresponding to the thread of a respective intraosseous screw. A lock nuts corresponding to the number of intraosseous screws are each provided with a female thread in turn corresponding to the thread of the respective screw. The crosspiece is designed to be inserted and housed, during use, in the maxillary sinus and the each screw is inserted inside a respective hole through the bone underneath the maxillary sinus so that it projects beyond the inner cortex of the bone and is inserted inside the respective nut of the crosspiece.

A contacting system (20) for electrical contacting of electrical conductor elements (14) embedded in an insulating sheath (10) of a cable harness (4a) is intended to —enable electrical contacting of the cable harness (4a) in a particularly simple and cost-effective manner that also meets high reliability requirements. According to the invention, this is achieved with a connection module (22), in the outer housing (25) of which a section of the cable harness (4a) can be fixed, and with a number of contact pins (36) which, viewed from the side relative to the longitudinal direction of the cable harness (4a), are guided transversely through the outer housing (25).

Methods, devices, systems, and series of appliances are provided for dental implant positioning. One method for positioning an implant with dental treatment includes determining an implant location based on a virtual model of an optimized dental occlusion, moving one or more teeth using a first number of a series of dental appliances, from a first orientation to a second orientation, the second orientation exposing the implant location, placing an implant at the exposed implant location using a landmark included in at least one of the series of dental appliances, repositioning one or more teeth using a second number of the series of dental appliances, from the second orientation to a successive orientation.

The present invention discloses an instrument of medical/dental insertion, the instrument comprising: an axle; a fixing region; and an insertion element; where the fixing region makes the connection of the insertion element and the axle; the axis rotating the insertion element when connected; where the fastening region comprises a magnet configured to fix the insertion element on the axle.

Thus, one of the advantages of the present invention is to eliminate the natural wear that occurs in the retention, mechanical type, between the tools, besides facilitating the handling of instruments.

A dental tool, such as an insertion tool for a dental implant, including a shaft extending along a longitudinal axis and having a distal end and a proximal end, the tool further including an annular resilient retention member formed of a metal material and connected to the shaft such that at least a section of the member protrudes from a surface of the shaft.

A bone foundation guide system has a bone foundation guide including a body that is contoured to reversibly affix to a bone segment of a dental implant surgical site. The body is further contoured to guide the cutting of a portion of the bone segment from a dental implant surgical site and alternatively support a dental implant surgical guide. The body is further contoured to support a bone foundation guide prosthesis as an alternative to the dental implant surgical guide. The bone foundation guide prosthesis combines with the body to accommodate the bone segment portion as placed through the body prior to the bone segment portion being removed from the dental implant site through the use of the body.

A titanium screw that permits the adaptation of PEEK (polyether ether ketone) capsules at both ends, enabling vertical and horizontal, uni or bidirectional appositional bone reconstructions. The screw has a length selected between 6, 8 and 10 mm; whereas the PEEK capsules have a diameter of 4.5 mm and a height of 1.5 mm. Accordingly, it is possible to retract the soft tissue and maintain the space necessary for bone reconstruction. By minimizing compression to the bone graft, this device optimizes tissue reconstruction, oftentimes crucial for the placement of implants.