Kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient

Abstract

A kit and a method are described for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, the orthodontic implant device comprising a frame (1) superimposable on an external surface of the palate (P) and / or mandible of the patient, the frame (1) having at least one fixing hole (2) extending through a section of the frame (1), and being sized and shaped to receive a bone mini-screw (3) and a drill guide (4) therein, the drill guide (4) being sized and shaped to receive the bone mini-screw (3) therein, the drill guide (4) being removably fastened to the frame (1) via the fixing hole (2) when the drill guide (4) is fastened to the frame (1). The bone mini-screw (3) is in communication with the respective fixing hole (2) via the drill guide (4).

Description

KIT FOR FIXING A FIXABLE ORTHODONTIC IMPLANT DEVICE TO THE PALATAL AND / OR MANDIBULAR BONES OF A PATIENT

[0001] The present invention relates to a kit and a method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient.

[0002] In general, the present invention relates to instruments or tools for implanting, means to be attached to the jawbone for consolidating natural teeth or for attaching dental prostheses to them; dental implants; implant tools.

[0003] In particular, the present invention relates to connection devices for joining an upper structure with an implant element, e.g., spacers with an additional screw, connection devices for joining an upper structure with an implant element, e.g., spacers with positioning means, positioning or guiding, e.g., of implant tools drills.

[0004] The prior art is represented by US patent application US 2021 / 0244514 A1 concerning a subperiosteal fastening kit comprising a subperiosteal dental implant device and a drill guide attachable to it, the subperiosteal dental implant device having a frame engageable with the jawbone of a patient and a fixing hole sized and shaped to receive a bone screw therein, the drill guide having an elongated guide channel sized to receive a helical bit therein and being removably attachable to the frame of the subperiosteal dental implant device, with the guide channel being in communication with the fixing hole when the drill guide is fastened to the frame of the subperiosteal dental implant device. A subperiosteal dental implant device of the method is intended to be fixed to a patient's mandible and be engaged with a drill guide having a threaded section.

[0005] In the embodiment shown, the subperiosteal dental implant device comprises one or more implant heads extending from the frame. The implant heads, or at least a portion thereof, may be integral (or a single piece) with the frame, i.e., they may be manufactured simultaneously with the frame as a single piece, or they may be removably mounted / engaged with the frame. Each implant head is configured to engage with a replacement tooth or a plurality of connected replacement teeth. In the particular embodiment, the frame has two implant heads, each having an internally threaded socket capable of receiving an intermediate threaded connector to provide engagement between the replacement tooth and the implant head, or a threaded connector portion of a replacement tooth to directly mount the replacement tooth on the implant head. In an alternative embodiment, the implant heads may be devoid of the above-described internal threaded socket, with each replacement tooth being connected to the corresponding implant head in a manner different from screwing into a threaded socket (e.g., the replacement tooth could be permanently connected to the corresponding implant head). Healing caps may be mounted and fixed to the implant head with mechanical fastening, such as a screw, until the replacement tooth is engaged with and fixed to it. In particular, the prior art is represented by patent document KR 102 088 353 B1.

[0006] The subject of the present invention concerns the use of orthodontic mini-screws, TADs, i.e., skeletal anchorage devices used in orthodontics to overcome some limitations of traditional appliances and to achieve dental movements that have been considered difficult to accomplish until now, with the dual advantage of easy insertion and no need for patient cooperation.

[0007] Orthodontic mini-screws can be inserted both in the vestibular and palatal areas.

[0008] Various types of orthodontic mini-screws for insertion in the palate are known, produced and applied with one-visit or two-visit programming systems to allow the mini-screw to be made with its own bushing and its own fixing screw to which the orthodontic device can be attached and soldered.

[0009] These fixing screws for palatal or vestibular use, due to the particular shape of their head, are used to attach traction elastics in orthodontic therapy or to serve as an anchorage for an orthodontic appliance through a frame adherent to the palate or mandible of the patient.

[0010] The prior art does not solve the problem of treating a patient wearing an orthodontic device fixed to the mandibular or palatal bones using connection means such as bone mini-screws, without encountering misalignments between the orthodontic device and the palatal and / or mandibular bones.

[0011] During the fixation of the device to the mandibular and / or palatal bones, the screws inserted into the holes of the orthodontic device's frame undergo micro-movements that result in the generation of auto-tensions that are difficult to discharge and are perceived by the patient.

[0012] According to the prior art, each mini-screw abuts against the frame of the orthodontic device. During the insertion of the screws into the frame's holes, there is an increased risk that the micro-movements of the plurality of screws will not allow the auto-tensions generated to be discharged.

[0013] The aim of the present invention is to solve the aforementioned problems of the prior art by providing a kit and a method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient that allows creating an intermediate cushion between the mini-screws and the orthodontic device.

[0014] A further aim is to provide a kit and a method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient that allows separating the orthodontic device from the patient without having to move the mini-screws inserted into the palatal and / or mandibular bones.

[0015] These and other aims and advantages of the invention, as will become apparent from the following description, are achieved with a kit and a method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient as described in the independent claims.

[0016] Preferred embodiments and non-obvious variants of the present invention form the subject of the dependent claims. It is understood that all the attached claims form an integral part of the present description. It will be immediately apparent that numerous variations and modifications (for example, relating to shape, dimensions, arrangements, and parts with equivalent functions) can be made to what has been described without departing from the scope of protection of the invention as it appears from the appended claims.

[0017] The present invention will be better described by some preferred embodiments, provided by way of example and not limitation, with reference to the attached drawings, in which:

[0018] shows a top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0019] shows a perspective view of an embodiment of the relevant components taken from the previous figure;

[0020] shows a perspective view of a first component of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0021] shows a top view of the previous figure;

[0022] shows a sectional view according to line V-V of the previous figure;

[0023] shows a front view of some relevant components of an embodiment of a phase of the method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0024] shows a sectional view according to line VII-VII of the previous figure;

[0025] shows a perspective view of a further component of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0026] shows a perspective view of a tool of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0027] shows a front view of some relevant components of an embodiment of a further phase of the method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0028] shows a sectional view according to line XI-XI of the previous figure;

[0029] shows a perspective view of a second component of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0030] shows a top view of the previous figure;

[0031] shows a sectional view according to line XIV-XIV of the previous figure;

[0032] shows a front view of some relevant components of an embodiment of a phase of the method for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0033] shows a sectional view according to line XVI-XVI of the previous figure;

[0034] shows a first top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0035] shows a perspective view of an embodiment of the relevant components taken from the previous figure;

[0036] shows a second top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0037] shows a perspective view of an embodiment of the relevant components taken from the previous figure;

[0038] shows a third top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0039] shows a perspective view of an embodiment of the relevant components taken from the previous figure;

[0040] shows a fourth top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention;

[0041] shows a perspective view of an embodiment of the relevant components taken from the previous figure;

[0042] shows a fifth top view of an embodiment of the kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, according to the present invention; and

[0043] shows a perspective view of an embodiment of the relevant components taken from the previous figure.

[0044] Referring to,, it can be noted that a kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient refers to an orthodontic implant device comprising a frame 1 superimposable on an external surface of the palate P and / or the mandible of the patient.

[0045] Referring to,, the frame 1 has at least one fixing hole 2 extending through a section of the frame 1.

[0046] Referring to,, and,, the fixing hole 2 is sized and shaped to receive a bone mini-screw 3 and a drill guide 4 therein.

[0047] Referring to figuresto, the drill guide 4 is sized and shaped to receive the bone mini-screw 3 therein.

[0048] The drill guide 4 is removably fastened to the frame 1, via the fixing hole 2, when the drill guide 4 is fastened to the frame 1.

[0049] Advantageously, the bone mini-screw 3 is in communication with the frame 1 via the drill guide 4.

[0050] The drill guide 4 comprises a drill guide body 41 with an elongated guide channel 42 extending through it.

[0051] Referring to figuresto, when the drill guide 4 is fastened to the frame 1, the drill guide body 41 is in communication with the fixing hole 2 via an external threaded protrusion 43.

[0052] When the bone mini-screw 3 is fastened to the drill guide 4, the elongated guide channel 42 is in communication with the bone mini-screw 3 via an internal threaded protrusion 44.

[0053] Referring to,,, the bone mini-screw 3 is adapted to pass through the drill guide 4, the bone mini-screw 3 comprising a threaded stem 31 with a shaped end 32, the shaped end 32 being sized smaller than the threaded stem 31 and connectable to a shaped tool 5.

[0054] The shaped tool 5 comprises a tool collar 51 able to position itself in abutment with respect to the drill guide 4 at the edge of a tool shoulder 45.

[0055] Referring to figuresto, when the drill guide 4 is not fastened to the frame 1, a permanent bushing 6 is connected to the frame 1 and to the bone mini-screw 3.

[0056] The bone mini-screw 3 is in communication with the respective fixing hole 2 via the permanent bushing 6.

[0057] The permanent bushing 6 is screwed to the fixing hole 2 and to the bone mini-screw 3 via a threaded protrusion 61 and via a threaded channel 62.

[0058] A kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, in which the orthodontic implant device comprises a frame 1 with at least one fixing hole 2 extending through a section of the frame 1, comprises a bone mini-screw 3, a drill guide 4 removably fastened to the frame 1, and a permanent bushing 6.

[0059] Such a kit may include a shaped tool 5 connectable with the bone mini-screw 3 and with the permanent bushing 6.

[0060] A method of fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, is executable with the aid of a kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, when the orthodontic implant device comprises a frame 1 superimposable on an external surface of the palate P and / or the mandible of the patient, the frame 1 having at least one fixing hole 2 extending through a section of the frame 1, and the kit comprises a bone mini-screw 3 for said at least one fixing hole 2, a drill guide 4 removably fastened to the frame 1, the drill guide 4 being adapted to receive the bone mini-screw 3 therein when the drill guide 4 is fastened to the frame 1, and a permanent bushing 6 connected to the frame 1 and to the bone mini-screw 3 when the drill guide 4 is not fastened to the frame 1.

[0061] Referring to figuresto, the method includes the following steps:by means of an interlocking connection and / or a connection by elastic deformation of the frame 1 with respect to the patient's teeth, positioning the fixable orthodontic implant device to the patient's palatal and / or mandibular bones,;connecting the drill guide 4 to the frame 1, the drill guide 4 being aligned with the fixing hole 2, when the drill guide 4 is fastened to the frame 1,;connecting the bone mini-screw 3 to the drill guide 4 so that the mini-screw 3 is guided as it screws into the palatal P or mandibular bones,;separating the drill guide 4 from the frame 1,;screwing the permanent bushing 6 along the bone mini-screw 3, the permanent bushing 6 connecting the bone mini-screw 3 to the frame 1,; andrepeating the procedure starting from step b), connecting the drill guide 4 to the frame 1, referring to an additional fixing hole 2, and similarly for all the remaining fixing holes.

[0062] The procedure is performed using a shaped tool 5 provided with a tool collar 51 to allow the bone mini-screw 3 to position itself in abutment with respect to the drill guide 4.

Claims

Kit for fixing a fixable orthodontic implant device to the palatal and / or mandibular bones of a patient, the orthodontic implant device comprising a frame (1) that can be superimposed on an external surface of the palate (P) and / or mandible of the patient, the frame (1) having at least one fixing hole (2) extending through a section of the frame (1), said at least one fixing hole (2) being sized and shaped to receive a bone mini-screw (3) and a drill guide (4), the drill guide (4) being sized and shaped to receive the bone mini-screw (3) and being removably attached to the frame (1) via the fixing hole (2), when the drill guide (4) is fastened to the frame (1), the bone mini-screw (3) being in communication with the frame (1) via the drill guide (4), the drill guide (4) comprising a drill guide body (41) with an elongated guide channel (42) extending therethrough, the drill guide body (41) being in communication with the fixing hole (2) via an external threaded protrusion (43), characterized in that the elongated guide channel (42) is in communication with the bone mini-screw (3) via an internal threaded protrusion (44), when the bone mini-screw (3) is fastened to the drill guide (4).Kit according to the previous claim, characterized in that the bone mini-screw (3) is adapted to pass through the drill guide (4), the bone mini-screw (3) comprising a threaded stem (31) with a shaped end (32), the shaped end (32) being sized smaller than the threaded stem (31).Kit according to Claim 2, characterized in that a shaped tool (5) comprises a tool collar (51) able to position itself in abutment with respect to the drill guide (4) at the edge of a tool shoulder (45).Kit according to any one of Claims 1 or 2, characterized in that it comprises a permanent bushing (6) connected to the frame (1) and to the bone mini-screw (3), when the drill guide (4) is not fastened to the frame (1).Kit according to Claim 4, characterized in that the bone mini-screw (3) is in communication with the respective fixing hole (2) via the permanent bushing (6).Kit according to Claim 5, characterized in that the permanent bushing (6) comprises a threaded protrusion (61) and a threaded channel (62), said threaded protrusion (61) and said threaded channel (62) being configured to allow the permanent bushing (6) to be screwed to the fixing hole (2) and to the bone mini-screw (3).Kit according to Claim 6, characterized in that it comprises a shaped tool (5) connectable with the bone mini-screw (3) and with the permanent bushing (6).

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