An adapter assembly for connecting an end effector to an actuation assembly includes a base member defining a plurality of notches spaced at least partially about a circumference of the base member, a handle supported on the base member and rotatable about a longitudinal axis of the base member, and a latch mechanism supported on the handle assembly and selectively engageable with the base member. The latch mechanism includes a button member and a locking member. The button member is movable between a first position in which the locking member is received within one of the plurality of notches to lock the handle relative to the base member, and a second position in which the locking member is spaced from the plurality of notches to unlock the handle relative to the base member.

A method of increasing movement of a tooth in a jaw having at least one tooth with an orthodontic brace thereon includes: (1) holding a handle of a device, the device having an elongate member extending from the handle and a screw tip at a distal end of the elongate member; (2) moving a sleeve along the elongate member to set a length of exposed screw tip; (3) locking the sleeve in place relative to the screw tip; (4) drilling a hole with the screw tip through a cortical bone of a jaw to increase movement of the tooth; and (5) stopping the drilling when the length of exposed screw tip has penetrated the jaw.

Devices for carrying out subperiosteal minimally invasive jaw bone augmentation and reconstruction procedures, to develop a passageway and surgical site in a concealed area of patient tissue, where the surgical site is not exposed. The devices have shanks with specially configured tips to facilitate maneuvering the device through mammalian tissue to develop a tunnel in the tissue and a remote surgical site within the tissue. The device tips have one or more peripheral cutting surfaces that direct the positioning of the tunnel formation when the instrument handle is manipulated, e.g., by rotation, angular, forward or rearward motion. Embodiments of the devices are configured with tips that have a wide spread for cutting and elevating tissue, and with tips that may be maneuvered to condense bone graft material being implanted at a surgical site concealed within the tissue.

A special tube is disclosed for the insertion of materials inside the maxillary sinus in order to displace the Schneiderian membrane. The tube is connected to a source of a flowable material. The tube is inserted through the alveolar ridge beneath the maxillary sinus and when the flowable material is advanced through the tube the Schneiderian membrane is lifted. The tube can be part of a dental implant which is screwed inside the alveolar ridge.

An adapter assembly for connecting an end effector to an actuation assembly includes a base member defining a plurality of notches spaced at least partially about a circumference of the base member, a handle supported on the base member and rotatable about a longitudinal axis of the base member, and a latch mechanism supported on the handle assembly and selectively engageable with the base member. The latch mechanism includes a button member and a locking member. The button member is movable between a first position in which the locking member is received within one of the plurality of notches to lock the handle relative to the base member, and a second position in which the locking member is spaced from the plurality of notches to unlock the handle relative to the base member.

A handpiece for dental or surgical applications has a chuck for rotatably clamping a tool such as a bur, the chuck being drivingly connectable to a drive mechanism such as to rotate the tool about a rotation axis thereof, a push button operatively connected to the chuck, configured to release the tool from the chuck upon depressing the push button, a spherical element, preferably a ball, fitted within or mounted at the push button, arranged and configured such that, when the push button is depressed, the spherical element enters into contact with the chuck, the spherical element being of a material with a high hardness on the Vickers scale of >2000.

Drill bits for cutting bones adjacent to soft tissue are disclosed. According to one example, the drill bit includes a working portion having a top cutting surface including a first top cutting surface and a second top cutting surface. The second stop cutting surface has an angle with respect to a line perpendicular to the longitudinal axis of the drill bit that is less than an angle with respect to a line perpendicular to the longitudinal axis of the drill bit of the first top cutting surface.

A surgical drill type cutting tool includes a shank and an active portion extending in the extension of the shank, with chip areas extending along the active portion, and a ring surrounding a part of the active portion, an inner surface of the ring engaging the active portion without closing off the chip areas, allowing irrigation fluid to provides useful irrigation over most of the length of the active portion of the surgical drill bit.

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.

An implant surgery drill capable of preventing accidents in advance by actively reinforcing coupling force between a cutting part for cutting the alveolar bone and a connecting part for connecting the cutting part to a handpiece is proposed. The drill can include a cutting part having a plurality of cutting blades that comprise saw teeth and are aligned in a circular shape so as to perforate the alveolar bone; and a connecting part interposed between the handpiece and the cutting part, wherein, specifically, the cutting part including: the saw teeth aligned in a circular shape at the upper end thereof; a cutting upper part extending downward from the saw teeth; and a cutting lower part protruding downward from the cutting upper part with an expanded diameter.