DRILL JIG FOR AN ORAL SURGERY INTERVENTION

Abstract

The invention relates to a drill jig (1) for an oral surgery intervention in a patient, said drill jig (1) having a temporary dental device (5) in which a drill guide (3) for guiding a drill in the jaw of the patient is provided, and at least one holding element (4), connected to the temporary dental device (5), for temporarily fastening the drill jig (1) to the set of teeth (2) of the patient.

Claims

1. A drill jig for an oral surgery on a patient, the drill jig comprising: a temporary tooth, in which a drill guide is provided for guiding a drill into the jaw of the patient, and at least one holding element connected to the temporary tooth for temporary fastening of the drill jig on the dentition of the patient wherein the at least one holding element is connected to the temporary tooth by a detachable connection, wherein the at least one holding element comprises an opening adapted to one or more teeth of the dentition of the patient for positioning the drill jig on the dentition of the patient.

2. The drill jig according to claim 1, wherein the detachable connection is formed by a material constriction or a perforation.

3. The drill jig according to claim 1, wherein the temporary tooth comprises at least one holding web for connection to a tooth surface.

4. The drill jig according to claim 3, wherein the holding web is preferably formed by a connection section of the temporary tooth to the at least one holding element.

5. The drill jig according to claim 1, wherein the temporary tooth comprises a connection point on a side facing the jaw of the patient in the inserted state for the indirect or direct connection to an implant.

6. The drill jig according to claim 1, wherein a bushing is inserted into the drill guide.

7. The drill jig according to claim 6, wherein the bushing is metallic.

8. The drill jig according to claim 1, wherein removable stop elements are provided in an edge region of the drill guide for drilling depth limitation of the drill.

9. The drill jig according to claim 1, wherein at least one surface of the temporary tooth is formed by an opaque material.

10. The drill jig according to claim 9, wherein the opaque material is a tooth coloured material.

11. The drill jig according to claim 1, wherein the temporary tooth comprises a lock for a tool.

12. The drill jig according to claim 11, wherein the tool is a cup.

13. A method for an oral surgery on a patient, comprising the steps of obtaining a drill jig for the oral surgery, the drill jig comprising a temporary tooth in which a drill guide is provided for guiding a drill into the jaw of the patient and at least one holding element connected to the temporary tooth for temporary fastening of the drill jig on the dentition of the patient, wherein the at least one holding element comprises an opening adapted to one or more teeth of the dentition of the patient for positioning the drill jig on the dentition of the patient, positioning the drill jig on the dentition of the patient by means of the opening adapted to the one or more teeth of the dentition of the patient, drilling into the jaw of the patient through the drill guide provided in the temporary tooth, inserting an implant into the jaw of the patient, detaching the holding element from the temporary tooth, and fastening the temporary tooth on the dentition of the patient or on the implant inserted into the jaw of the patient.

14. The method according to claim 13, further comprising the step of: upon wound healing, replacing the temporary tooth with a permanent dental prosthesis.

15. A method for an oral surgery on a patient, comprising the steps of obtaining a drill jig for the oral surgery, the drill jig comprising a temporary tooth in which a drill guide is provided for guiding a drill into the jaw of the patient and at least one holding element connected to the temporary tooth for temporary fastening of the drill jig on the dentition of the patient, positioning the drill jig on the dentition of the patient, drilling into the jaw of the patient through the drill guide provided in the temporary tooth, inserting an implant into the jaw of the patient, detaching the holding element from the temporary tooth, and fastening the temporary tooth on the dentition of the patient or on the implant inserted into the jaw of the patient.

16. The method according to claim 15, further comprising the step of: upon wound healing, replacing the temporary tooth with a permanent dental prosthesis.

Description

[0026] The invention is explained in more detail in the following on the basis of preferred embodiments, to which it is not limited however.

[0027] FIG. 1 shows a drill jig, as is known from the prior art.

[0028] FIG. 2 shows a drill jig according to the invention on a dentition of a patient in a first embodiment.

[0029] FIG. 3 shows the drill jig according to the invention of the first embodiment in a different view.

[0030] FIG. 4 shows a drill jig according to the invention on a dentition of a patient in a second embodiment.

[0031] For comparison, FIG. 1 shows a drill jig 1′ already known from the prior art, with a plurality of through holes as drill guides 3′. To fix the drill jig 1′ on a dentition of a patient (not shown), the drill jig has holding elements 4′, which are adapted to the teeth of the patient. During an oral surgery intervention, the drill jig 1′ is placed onto the dentition and a drill is guided through the drill guide 3′, in order to place the drill holes for the dental implants. After the intervention, the drill jig 1′ is removed and the fitted implants are protected using a separately manufactured temporary tooth (not shown). In contrast to the drill jig according to the invention (cf. FIGS. 2 to 4), drill jigs from the prior art do not have an integrated temporary tooth and can therefore be disposed of as a whole following the drilling as they cannot be put to any further use.

[0032] By comparison, FIG. 2 shows the drill jig 1 according to the invention in a first embodiment, which in the illustration shown is placed on a dentition 2 of a patient. For fixing, the drill jig 1 advantageously has two holding elements 4, between which a temporary tooth 5 is arranged. In FIG. 2, the temporary tooth 5 is inserted between two natural teeth of the dentition 2. In order to guide the drill onto the jaw of the patient during the intervention, the temporary tooth 5 comprises a drill guide 3. Preferably, the drill guide 3 is realized as a channel 6, which leads from a first side of the temporary tooth 5 to an opposite second side and penetrates the temporary tooth 5. Expediently, the channel 6 is straight, i.e. free of curvature, and closed except for two end-side openings 7 on the opposite sides of the temporary tooth 5. The dashed lines indicate that the drill guide 3 essentially runs inside the temporary tooth 5 and is only accessible through the end-side openings 7.

[0033] After drilling, the drill jig 1 can be taken from the dentition of the patient and the temporary tooth 5 can be detached from the holding elements 4 by hand by means of repeated bending or with the aid of a corresponding tool. For easier detachability, the temporary tooth 5 can be connected to the holding elements 4 by means of a detachable connection. In particular, it is beneficial to this end if the detachable connection is formed by a material constriction or a perforation (cf. FIG. 4). After the detachment of the temporary tooth 5 from the holding elements 4, the temporary tooth 5 can be placed at the position provided therefor in the dentition 2 of the patient. This is generally the position at which the temporary tooth 5 was placed during the intervention for guiding the drill. For aesthetic reasons, at least one side of the temporary tooth 5 can be produced from tooth-coloured material. To simplify the production, the entire drill jig 1 may be manufactured from the same tooth-coloured material.

[0034] To fasten the temporary tooth 5 on the dentition 2 of the patient after removal of the holding elements, the temporary tooth 5 can, as in the exemplary embodiment shown, comprise at least one holding web 10 for connection to a tooth surface 11, wherein the holding web 10 is preferably formed by a connection section 12 of the temporary tooth 5 to a holding element 4. The temporary tooth of the first embodiment is therefore particularly suitable as a non-implant-supported temporary tooth. The detachable connection between the temporary tooth 5 and a holding element 4 is preferably arranged on the end of the holding web 10 assigned to the corresponding holding element 4.

[0035] For improved fixing of the drill jig 1 during the intervention, it is beneficial if the holding elements 4 are formed for placement onto one or more teeth for positioning the drill jig 1 on the dentition 2 of the patient. This can be seen in particular from FIG. 3, which shows the drill jig 1 in a view from below, i.e. with a view onto the side facing the dentition 2 of the patient in the use state. In particular, the at least one holding element 4 can comprise an opening 13, preferably an opening 13 adapted to one or more teeth of the dentition 2 of the patient, for positioning the drill jig 1 on the dentition 2 of the patient. This opening 13 can be formed inter alia by means of an open cavity or a bulge of the holding element 4, which on the inside, i.e. the side facing the dentition in the use state, represents a negative or one or more teeth of the patient.

[0036] A second embodiment of the drill jig 1 is illustrated in FIG. 4. Like the first embodiment, the temporary tooth 5 is inserted between two holding elements 4 and comprises a drill guide 3 realized as a channel 6. Instead of the connection sections 12 or holding webs 10 described above in connection with FIG. 2, the temporary tooth 5 is connected directly to the holding elements 4 by means of a detachable connection 8, which connection may be formed inter alia by means of a material constriction or a perforation 9.

[0037] The temporary tooth 5 of the second embodiment is suitable for use as an implant-supported temporary tooth 5 in particular. For this purpose, the temporary tooth 5 may comprise a connection point (not shown) adapted to the implant on a side facing the jaw of the patient in the inserted state for the indirect or direct connection to an implant. Advantageously, the connection point may comprise a thread, using which the temporary tooth 5 can be connected to the implant. Preferably, the connection point is realized in such a manner in this case that in the connected state to the implant, the temporary tooth 5 is at least partially rotatable with respect to the implant, in order to enable subsequent adjustments of the temporary tooth 5 with regards to its position. An intermediate piece may also be arranged as an adapter between the connection point and the implant, wherein the connection point is adapted to the intermediate piece in this case.