An implant includes an elongated and cylindrical body; conical apical region coated by a screw thread and with at least three helical chambers and semi-spherical end; and a cervical region defined by a smooth cervical surface. The elongated and cylindrical body includes at least one longitudinal strip having a substantially smooth surface. The smooth longitudinal strip is located in the zygomatic implant cervical portion. The connection between the screw threads and the smooth longitudinal strip is made by a transition curvature, and the smooth longitudinal strip is aligned with one of the flat sides of the internal area with hexagonal cross section of the implant prosthetic interface.

A zygomatic dental implant includes a generally cylindrical body, an interior threaded bore, and an asymmetrical external feature. The generally cylindrical body has a coronal portion and an apical portion. The generally cylindrical body has a main-central axis. The interior threaded bore is formed in the coronal portion of the generally cylindrical body for receiving a screw configured to removably hold an abutment in engagement with the zygomatic dental implant. The interior threaded bore has a bore-central axis. The asymmetrical external feature is on at least a portion of a first side of the generally cylindrical body such that the asymmetrical external feature is configured to directly engage alveolar bone of the patient. The asymmetrical external feature includes a plurality of circumferentially extending grooves.

A zygomatic dental implant includes a generally cylindrical body, an interior threaded bore, and an asymmetrical external feature. The generally cylindrical body has a coronal portion and an apical portion. The generally cylindrical body has a main-central axis. The interior threaded bore is formed in the coronal portion of the generally cylindrical body for receiving a screw configured to removably hold an abutment in engagement with the zygomatic dental implant. The interior threaded bore has a bore-central axis. The asymmetrical external feature is on at least a portion of a first side of the generally cylindrical body such that the asymmetrical external feature is configured to directly engage alveolar bone of the patient. The asymmetrical external feature includes a plurality of circumferentially extending grooves.

An apparatus for verifying an osteotomy trajectory may include a straight rod portion extending along a first axis in a first direction, a sliding arm slidably coupled to the straight rod portion and configured to slide along a sliding direction on the straight rod portion along the first axis. The sliding arm may include a sliding portion slidably coupled to the straight rod portion to slide along the sliding direction, a pointing portion including a tip protruded along a second axis in a second direction, the second axis being at least substantially parallel to the first axis, and an extending portion having a first side attached to the sliding portion and a second side attached to the pointing portion. The apparatus further includes a fixed arm coupled to the straight rod portion and configured to mount a drill thereon to point the drill along the second axis toward the tip.

An angled zygomatic implant apparatus for spanning a patient's zygomatic bone and maxillary bone includes a zygomatic abutment screw with a conical receptacle and san implant threaded bore, the zygomatic abutment screw is adapted for fixation in the patient's zygomatic bone, and an angled extension having an implant end adapted with a conical portion adapted for fixation to the conical receptacle of the zygomatic abutment screw. The angled extension is elongated and otherwise adapted to span the space between a patient's zygomatic bone and maxillary bone for fixing a maxillary tooth implant.

The invention consists of a medical implant for anchoring to the malar process of the maxilla, said implant having a head (1) with an angulation of 35° to 55°; an internal or external connector (2) for different types of abutments; an implant body (3) shaped to define an apical and basal portion, said apical portion being threaded all around, and said basal portion having threads on one side and a faceted canoe-thinning shape on the other side for better layering of soft tissues.

The invention also concerns a medical implant system comprising the aforementioned medical implant, a surgical guide and at least one bone drill.

The invention is suitable for rehabilitation of patients suffering from posterior edentulous maxillae with insufficient bone volume and allows for an immediate rehabilitation of the edentulous patient with a reduced treatment time and morbidity, through a considerably less invasive and technically simplified technique.

A rotary osteotome for deep reach applications. The body of the osteotome has a tapered end that supports helically spiraling flutes. Substantially margin-less (without margin) working edges are interleaved between the flutes to provide compaction action when rotated in a non cutting direction. The body also has an elongated cylindrical stopper section. An irrigation conduit passes through the center of the stopper section and emerges at a plurality of outlet orifices that function as independent nozzles for irrigating fluid. The outlet orifices are generally elliptical in shape and spaced around the body to maintain balance. The irrigation conduit has a main trunk that opens to a flow splitter, which in turn divides the flow of irrigating fluid into substantially equal branches. Each branch is angled at an acute trajectory relative to the longitudinal axis, in the direction of said apical end, between about 10° and 45°.

An apparatus for implantation of a zygomatic implant in coincidence with an implantation vector includes a dedicated dental tool and a dental implantation guide including a guide shell configured to conform to and to be releasably affixed to a portion of a maxillary bone. The guide shell supports a plurality of guides including an anterior guide and a posterior guide which together form a pair of guides that are distanced apart relative to each other, are configured to be aligned with the implantation vector, and are configured as concave troughs for support of a cylindrical body, the cylindrical body being at least one of the zygomatic implant, the dedicated dental tool, an implantation drill, and a preliminary drill.

A zygomatic dental implant guide includes a guide body a guide body configured to be secured to a maxillary of a subject, and a guide sleeve coupled to the guide body and configured to receive a zygomatic implant and guide the zygomatic implant toward a zygoma of the subject.

A medical implant and a method of implanting a medical implant are disclosed. The medical implant (20) is elongate and for fixation in a patient, and comprises an apical bone anchoring portion (200) for bone apposition, and an unthreaded coronal portion (210), wherein said coronal portion (210) has a length (L.sub.2) exceeding or equaling a length (L.sub.1) of said apical portion (200), and wherein said apical portion (200) has a maximum outer diameter (D.sub.1) that is equal to or larger than a maximum outer diameter (D.sub.2) of said coronal portion. In a method of implanting a medical implant, an apical part is affixed in the zygomatic bone, and a coronal part is positioned outside the maxilla in the mucous membrane.