摘要:
A drill limit system includes a holder having drill stops removably coupled thereto and configured to receive a drill bit therethrough, and a platform coupled to the holder and configured to engage a tip end of the drill bits when received through the drill stops, wherein the holder and platform are movable relative to each other so that the position of the drill stops relative to the drill bits may be selectively varied. A method for attaching drill stops to a drill bit includes providing a holder and a platform movable relative to each other, the holder having a plurality of drill stops removably coupled thereto, inserting a plurality of drill bits through respective drill stops, moving the holder and platform relative to each other to select a desired height of the drill stops on the bits, and engaging the drill stops to the drill bits at the selected height.
摘要:
A system for endodontic therapy includes a radio-opaque tray having three or more fiduciary markers embedded in the tray, a leveling device, and one or more bite stops arranged to ensure maintenance of adequate bite registration or impression material between opposing teeth to allow 3D reconstruction of occlusal surfaces.
摘要:
A method, device and system for modifying the gingival margin of a patient is disclosed. A method includes obtaining an electronic model of the dentition of a patient, determining an incision path along the gingival surface based on the electronic model, generating and fabricating a guide arrangement to assist in cutting the gingival surface of the patient, mounting the guide arrangement to the dentition of the patient, and cutting the gingival surface of the patient with the assistance of the guide arrangement. A guide arrangement includes a mounting portion and a template portion coupled to the mounting portion along the gingival surface of the guide arrangement and positioned to provide a desired incision path. A system includes a three dimensional scanner, a computer system and a fabricating device.
摘要:
The invention relates to an intraoral device for automated preparation of the teeth with a view to performing partial or peripheral dental restoration, which includes: a splint (1) suitable for being positioned in the mouth of a patient, said splint including a means (13) for maintaining the position thereof inside said mouth; at least one mobile cutting tool (2) combined with said splint; and an electronic management unit which makes it possible to control said cutting tool, characterized in that: said cutting tool (2) is configured so as to cut at least the labial surface of the tooth (D1) to be prepared, said tool being mounted on a mobile carriage (23) moving along a rail (24) attached to the splint (1), opposite the labial surface of the tooth (D1) to be prepared, said rail having a curvature that matches the dentition (D) of the patient; said splint (1) includes at least one 3D digitization tool (4) arranged such as to digitize at least the labial surface of said tooth to be prepared, said digitization tool being connected to the management unit (6) so that the digitized data can be transferred to said management unit; and said management unit is configured so as to control the movement of said cutting tool (2) in accordance with the digitized data.
摘要:
The illustrated embodiment of the invention encompasses an apparatus for intraoral imaging of teeth of a patient which includes a camera, a robotic arm coupled to the camera which arm is capable of rotating the camera for selectively positioning the camera into the mouth of the patient, at least one sensor coupled to arm to sense the relative position of the teeth and/or mouth with respect to the camera, and a controller coupled to the at least one sensor and arm for controlling the arm to avoid any collision between the teeth or the interior of the mouth and the camera and/or arm, where the controller further selectively moves the arm to track any movement of the patient to keep the camera in a constant relative position with respect to the teeth or mouth.
摘要:
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.
摘要:
The invention concerns a dental drill system (1), comprising a drill (2) having a drilling part (3) with a first end (4) configured for drilling a hole in a jaw bone and a shank part (5) with a second end (6) configured for connection to a drill-rotating device and a guiding sleeve (7) for guiding the drill (2) during drilling, wherein the guiding sleeve (7) has a first side (8) intended to face the drill-rotating device and a second side (9) intended to face the jaw bone during a drilling operation, and wherein a guiding through-hole (10) extends from the first side (8) to the second side (9). The invention is characterized in that a rim (11) extends at least partly around the circumference of the drill (2), and in that the system (1) comprises a drill stop sleeve (12, 121) that is capable of being brought onto the drill wherein the drill stop sleeve (12) is provided with a recess (13) extending circumferentially around an inner side of the drill stop sleeve (12, 121), wherein the relative dimensions of the rim (11) and the recess (13) are adapted to allow the drill stop sleeve (12, 121) to be snap-locked onto the drill (2), and wherein the guiding sleeve (7) comprises a flange (14) that defines an end position for the drill stop sleeve (12, 121).
摘要:
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.
摘要:
A gingival graft stabilizer has an elongate member and slanted arms extending from opposing ends of the elongate member. An anterior guide extends from one of the arms and a posterior guide extends from the other arm. The anterior guide includes spaced protrusions extending from an upper end of the anterior guide. The posterior guide includes spaced protrusions extending from opposing sides of the posterior guide. During suturing of a gingival graft, a dental surgeon holding the elongate member can stabilize and position a gingival graft on anterior gingiva using the anterior guide or on posterior gingiva using the posterior guide. Sutures can be made in the spaces between and around the protrusions of the anterior guide or the posterior guide.
摘要:
A method of making a machinable puck of a hard, solvent free, substantially non-hydrophilic polyurethane elastomer for use in fabricating dental appliances. The elastomer has a hardness of not less than about Shore D65. A first polyester or polyether polyol with a functionality greater than two and a molecular weight greater than one hundred is reacted with an isocyanate prepolymer prepared from one or more branched polyester or polyether polyols with a functionality greater than two; and then blending prepolymer and first polyester or polyether polyol with nanoparticles and colorants as needed. In one embodiment, the polypropylene glycol triether and the isocyanate prepolymer comprises dicyclohexylmethane 4,4′-diisocyanate. The machined, elastomer appliance is able to be heated in hot water to make it flexible and formable for individual, customed-fitting for the patient.