An abutment assembly includes an abutment, an adjustable buffer member and an adhesive. There is an angle between an extending direction of the abutment and a Z-axis direction, and the angle is greater than or equal to 0 degrees and smaller than or equal to 30 degrees. The adjustable buffer member is closely connected to the abutment having a positioning structure. The adjustable buffer member includes an engaging structure, an inner side wall, a base portion and a grinding portion. The engaging structure is engaged with the positioning structure. The inner side wall has at least one inner annular groove corresponding to the engaging structure. The base portion has a base thickness which is smaller than or equal to 4 mm. The adhesive is connected between the abutment and the adjustable buffer member, and contained in the inner annular groove. The grinding portion is manufactured by the instrument.

Embodiments of systems and methods for planning and/or delivering an oral or facial endosseous implantation in a patient are described. In certain embodiments, systems according to the invention include a processing module; a bone imaging module that communicates bone data about the patient to the processing module; a surface imaging module that communicates surface data about the patient to the processing module; and the processing module processes the bone data and the surface data into an output that includes three-dimensional (3-D) representation data indicative of at least one of an oral structure and a facial structure of the patient. In certain embodiments, a system includes a fabrication module that produces a physical model based on the 3-D representation data and indicating a planned location of an endosseous implant. In certain embodiments, a system includes a surgical module that guides implantation of an endosseous implant based on the 3-D representation data.

Embodiments of systems and methods for planning and/or delivering an oral or facial endosseous implantation in a patient are described. In certain embodiments, systems according to the invention include a processing module; a bone imaging module that communicates bone data about the patient to the processing module; a surface imaging module that communicates surface data about the patient to the processing module; and the processing module processes the bone data and the surface data into an output that includes three-dimensional (3-D) representation data indicative of at least one of an oral structure and a facial structure of the patient. In certain embodiments, a system includes a fabrication module that produces a physical model based on the 3-D representation data and indicating a planned location of an endosseous implant. In certain embodiments, a system includes a surgical module that guides implantation of an endosseous implant based on the 3-D representation data.

A radiographic guide that can be used as a surgical guide is provided. The radiographic guide uses a provisional dental implant instead of a denture tooth or a custom made diagnostic tooth. The provisional dental implant, which can be integrated or selectively interconnected to the radiographic guide, may have a through-hole or a tapped hole that facilitates location of a dental implant. If the planned implant location is acceptable, the radiographic guide can be used as a surgical guide, wherein the hole guides surgical tools used to modify a patient's maxilla or jaw so it can receive the implant.

A prosthetic retention system for edentulous patients comprising a prefabricated bar and two implants; where the said bar consists of a tubular central piece that has a round or ovoid cross section and two hollow capsules at its ends; and where the implants are formed by one single piece, with an upper zone that connects to the bar and a lower zone that is introduced into the patient's bone tissue.

Provided herein is an IVRO surgical guide for positioning a cutting guide on a mandibular ramus such that the mandibular ramus is clamped between a hooked distal end and a slidable component having a curved claw. The cutting guide is placed at a predetermined distance from the posterior edge of the ramus at the mid-waistline of the mandibular ramus along a curvilinear shaft in contact with the lateral surface of the ramus. The cutting guide can accommodate a saw for performing the osteotomy.

A changeable positioning device for dental drilling comprises a base, a guide body and a positioning block. The base comprises a top end, a bottom end, a first outer wall, a first inner wall, a first guide groove, at least one first recess and at least one second recess. The at least one protrusion can be slidably fitted with the at least one first recess and the at least one second recess, thereby the second guide groove of the guide body will not be synchronously moved with a drill during drilling toward the axial direction of the guide body. The distance between the two extension portions is smaller than the diameter of the second inner wall at the same plane that is perpendicular to the axis of the guide body so that the drill will not deviate from the guide groove, thereby increasing the stability and precision of drilling.

A bone foundation guide system having a bone foundation guide with a foundation guide body forming an open surgical space connecting a top of the bone foundation guide body with a bottom of the bone foundation guide body, the bottom contoured to removably affix the bone foundation guide body to the bone of a dental implant surgical site, the body further contoured to guide the cutting of bone from a dental implant surgical site and supporting a dental implant surgical guide; the dental implant surgical guide contoured to removably mate to the bone foundation guide body; wherein a combination of the bone foundation guide and the dental implant surgical guide forms a double open-ended placement channel that passes through a plurality of guiding cylinders held in tandem alignment to aid in the placement of a dental implant that is anchored in a site remote from the mouth.

The surgical guide for the placement of dental implants of the invention is intended to guide the surgeon during the drilling of the bone bed of a patient, prior to the placement of an implant within the operation for the replacement of one or various dental pieces, basically comprising a handle having a hole in at least one of its ends and a drill reducer sleeve which is joined to the handle through said hole and having a circular through hole having a constant diameter to allow close-fitting passage of a drill during the drilling operation, a first portion connected to the hole of the handle and a second portion capable of closely fitting by friction to the inner diameter of the guide hole of a surgical template, and wherein, furthermore, a tool used for the assembly and disassembly of the drill reducer sleeve in the handle is described, made up of a stand and a plunger.

In embodiment of the invention provides a method of producing a dental splint comprising the steps of: obtaining a set of 3D surface data, the 3D surface data representing a surface of a patient's oral situation, obtaining a support structure model describing a dental splint configured to fit to a portion of the surface of the patient's oral situation, modifying an apical edge of the support structure model in dependence on the 3D surface data, producing the dental splint in dependence on the modified support structure model.