A number of osteotomes, n, form a set of osteotomes, for use during a ridge expansion osteotomy to reduce alveolar stress and to reduce likelihood of a fracture, with each osteotome of the set having a conical working tip with a free end having a diameter .sub.An, and a working base .sub.Bn; a first osteotome, n=1, of the set has the working tip formed with a first diameter, .sub.A1=Y, at the free end, and with a second diameter, .sub.B1X, at the working base, the second diameter being larger than the first diameter, X>Y; and wherein for successive osteotomes of the set, the diameter at the free end increases as an alternate step and regressive step sequence, and the diameter at the working base alternately increases by a constant increment c, as a step function.

An instrument comprising a shank and a working portion, the working portion having a tip and a plurality of flutes being defined by at least two lands having a land margin; wherein the working portion has a parabolic cross-section defining opposing convexed surfaces extending between at least two opposing land margins.

The present disclosure provides a drilling driver for placing a dental implant. The drilling driver includes: a tip part having a first outer diameter and having a cutting edge; a small-diameter part extended from the tip part, and having a second outer diameter smaller than the first outer diameter; and a large-diameter part positioned farther from the tip part than the small-diameter part, and having a third outer diameter larger than the first outer diameter.

A method of forming a cavity in bone, the cavity formed and instruments used to form the cavity with an ultrasonic, piezoelectric surgical device for subsequent insertion of a blade implant. The method includes inserting instruments into a cavity to abrade the bone and shape the thickness of the cavity to be equal to or smaller than the implant. The cavity is formed with a generally tapered shape with at least one necked-down portion that may be in a trabecular bone. The instruments include a tip having a working portion with faces angled relative to one another and surface formations that abrade a cavity sidewall surface when moved rapidly and held against the surface.

A mandibular bone plate (10) can include a body (40) that defines a bone facing surface (44), an outer surface (48) that is opposite the bone facing surface, and a plurality of bone anchor holes (52) that extend through the body from the bone facing surface to the outer surface. The body can include a chin portion (56) and first (60) and second (64) extension portions that extend from the chin portion such that the bone facing surface of the chin portion faces the inferior surface of the mandible when the mandibular bone plate is attached to the mandible and the bone facing surfaces of the first and second extension portions at least partially face the lingual surface of the mandible when the mandibular bone plate is attached to the mandible.

The invention concerns a dental surgery device (1), comprising a punching member (15) having a cutting end part (16) suitable for removal of tissue on a jaw bone of a patient, and a guiding sleeve (7) for guiding the punching member (15) during a punching operation. The guiding sleeve (7) has a first side (8) intended to face away from the jaw bone and a second side (9) intended to face towards the jaw bone during a punching operation, and a guiding through-hole (101) extends from the first side (8) to the second side (9). The punching member (15) is adapted to fit into the guiding through-hole (101) such as to allow guidance by the guiding sleeve (7) when the punching member (15) is moved in an axial direction through the guiding through-hole (101). The invention is characterized in that the punching member (15) and the guiding sleeve (7) are provided with complementary guiding means configured to control the axial movement of the punching member (15) through the guiding through-hole (101) during the punching operation, wherein the complementary guiding means comprise at least one guiding element (17) that extends in a radial direction and at least one guiding groove (18) adapted to receive the guiding element (17) and guide its movement along the guiding groove (18), wherein the guiding groove (18) extends both in a circumferential direction as well as in an axial direction such that, when the guiding element (17) and the guiding groove (18) are engaged, a rotation of the punching member (15) in relation to the guiding sleeve (7) forces the punching member (15) to move in relation to the guiding sleeve (7) in the axial direction thereof.

A method is provided for manufacturing a template, whereby a digital or physical model of the shape of at least a part of the jaw is generated. A desired shape for the jaw bone for positioning a bone superstructure is compared to the model and a bone part of the jaw bone is identified, which bone part is to be removed in order to approach the desired shape. A guide surface is provided on the template to guide a milling element in order to remove the identified bone part. A bone superstructure is also described.

The invention relates to a method for manufacturing at least one bone anchor and a corresponding drilling template, wherein the bone anchor has an anchor plate which is to be fixed to the surface of a bone by means of one or several screws having a screw head. The anchor plate thus has a bone side which is to connect to the surface of the bone and a free side which is opposite to said bone side. Further, the invention concerns a method for manufacturing a drilling template making it possible to make bore holes in the bone at predetermined positions and to screw the bone anchor to said bone according to predetermined orientations.

A medical support device includes an arm having a drill attached at a tip part of the arm, a first position obtainer obtaining a representative position of the drill attached to the arm, a second position obtainer obtaining a bury start position, and a controller. The controller controls the arm and applies a burying reaction force to the drill in a burying direction, i.e., a direction from the bury start position to an inside of a implant area, when the representative position of the drill obtained by the first position obtainer is at the inside of the implant area relative to the bury start position.

A system and method for a tracker arm mount for dynamic navigation is provided. The method provides for the fabrication of a tracker arm mount that accurately adapts to the patient's jawbone and is temporarily secured to the bone with screws engaging the full thickness of the bone. The tracker arm supports an occlusal positioning device and a dental prosthesis. The tracker arm mount is designed from digital imaging records of the patient and specific to the patient's anatomy and treatment plan, which may include photographic images, measurements, digital impressions, and 3D x-rays (CBCT) taken of the patient. The inner surface is fabricated to closely contour the outer surface, or buccal, contour of the patient's jaw bone. Attachment apertures avoid vital structures and may accept reinforcement collars. Fasteners are placed through the attachment apertures to fixate the mount to the patient's jaw bone. Slots accept corresponding tabs from an occlusal positioning device, interim dental prosthesis, or other device.