The invention relates to a milling tool for seating a screw in a dental structure, the screw being provided to be joined to a dental implant, wherein the tool comprises a coupling region provided for coupling to a milling machine and a working region defined by a rod that on one end supports a head having a plurality of cutting blades radially distributed with respect to a longitudinal axis of the coupling region, wherein each cutting blade has a lower cutting surface. Said lower cutting surface has a region with a convex curvature which has a radius that varies between a maximum and a minimum value, the maximum value of the radius being equal to 0.1350*Dh, wherein Dh corresponds to the diameter of the effective area of the milling tool, and the minimum value of the radius complying with the formula:

[00001]$R_{\min }=125\frac{\sqrt{2}.Math.0.0012\mathrm{Dh}}{3.2}$

A dental alignment guide system for dental implant placement has an anatomical guide, a tooth supported guide and a surgical guide. The system further can have an articulation piece, a prosthetic seat, an analog anatomical model and artificial teeth. The system has a plurality of implants, the implants being abutments, preferably multiunit abutments, a plurality of screws for attaching the anatomical guide to bone, pins to removably attach the various guides and the artificial teeth to the anatomical guide as assemblies during the method of practicing the invention.

A guided implant drill system includes a guided implant drill bit with a cutting cylinder having a cutting diameter corresponding to a selected dental implant anchor and a noncutting guide portion having a diameter corresponding to a selected pilot drill bit, and a corresponding guided implant final drill bit having a noncutting guide cylinder portion and a cutting tip extending therefrom, with final drill bit noncutting cylinder portion and cutting tip diameters matching the guided implant drill bit cutting cylinder, and the final drill bit cutting tip depth matching the guided implant drill bit guide portion depth. A method of use for the guided implant drill system is also provided.

A guided handpiece, system, and method to perform image guided surgery for dental implants. Conventionally an image guided surgery system needs a surgical guide, a handpiece, a set of guided drills and drill adaptors. Extended drills must be specifically designed and made for implant brands and parameters. Adaptors are required to accommodate drills of different diameters. The process is much more complex than freehand surgery while surgical guides are not used. This invention introduces a guided handpiece, corresponding system, and method, which overcome the problems of prior art and make it possible to perform guided surgery with regular drilling tools.

A plate to be used by being fixed to a stent to be mounted on a row of teeth of a patient includes a plurality of CT markers, a detachable part that is configured to connect a reference frame, provided with a plurality of infrared markers whose relative positional relationship with the respective CT markers when the reference frame is connected to the plate is known, and a recessed part that is configured to be used in measuring registration accuracy between position coordinates of the CT markers in a three-dimensional reconstructed CT image including the plate as an object and position coordinates of the CT markers in real space in which the plate exists, the position coordinates being calculated on the basis of the position coordinates of the infrared markers.

Ablation probe tips (108, 148, 320, 360) and physical and virtual stents (110) for use in tooth bud ablation procedures that result in tooth agenesis as well as tooth bud ablation methods are described herein.

A dental prosthesis and a process for design and manufacturing, incorporating an overdenture and a dental implant framework that will be designed and manufactured simultaneously.

Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth. The first tool, the guides, and the prosthesis are predesigned and prefabricated based on images taken of the patient anatomy.

A medical apparatus for orienting and guiding a medical implement includes a mechanical mechanism that includes a first mechanism portion and a second mechanism portion. The first mechanism portion includes a contact element for disposition on a selected emplacement on a portion of a body, and the second mechanism portion includes an operation module for guidance and support of the medical implement. The mechanical mechanism permits displacement of the contact element and the operation module relative to each other in bidirectional motion of translation along a segment of a straight line, and maintains the medical implement in permanent aim at the selected emplacement. The operation module also supports an implement guide for support an implement drive which includes a motorized drive for operating medical implements coupled thereto.

A dental implantation system and navigation method are provided. The dental implantation system includes: a multi-axis robotic arm having an action end connected to a dental implantation device; and at least one optical device coupled to the multi-axis robotic arm to capture a real-time image information about an implant-receiving region of an implant-receiving patient during a dental implantation process. The multi-axis robotic arm drives the dental implantation device moving along a predetermined path in the implant-receiving region according to association result of a pre-implantation plan and the real-time image information. The pre-implantation plan is associated with a 3D model of the implant-receiving region and includes a predetermined entry point associated with the predetermined path, at least one predetermined relay point associated with the predetermined path, and a predetermined target point associated with the predetermined path. The 3D model is constructed from a pre-implantation image information about the implant-receiving region.