FR3039984A1 - ORTHESIS OF MANDIBULAR CORRECTION - Google Patents

Abstract

A mandibular correction orthosis, comprising a maxillary orthosis (1) and a mandibular orthosis (11), characterized in that at least one maxillary (1) or mandibular (11) orthosis comprises an unlocking plane (3; 13), and in that each orthosis comprises a connecting device, so as to allow the two maxillary (1) and mandibular (11) orthoses to occupy a binding configuration, in which they are supported against each other at least on the unlocking plane (3, 13) and in which their respective connecting devices are connected and provide a maintenance of the binding configuration of the two maxillary and mandibular orthoses.

Description

Mandibular correction orthosis

TECHNICAL FIELD OF THE INVENTION The invention relates to an apparatus forming a mandibular correction orthosis. It also relates to a method of manufacturing such an apparatus, as well as to a device for manufacturing such an apparatus. State of the art

A person with a bad mandibular position has different negative consequences, including sleep apnea and snoring. In addition, such a person may experience joint pain and headaches. Finally, such a defect can also induce a negative effect on the overall aesthetics of the face. This phenomenon of poor mandibular positioning is increasing strongly today, due to the evolution of eating habits. In general, the mandible occupies a position too far back.

There are devices to correct this positioning defect, called mandibular correction orthosis, or sometimes more precisely mandibular advancement orthosis. To date, the existing devices are however unsatisfactory because they have many disadvantages among which a lack of comfort in the mouth for patients, a lack of user-friendliness during their use, a high cost especially due to their complex manufacture.

Object of the invention

Because of the preceding remarks, the object of the present invention is to propose an improved solution for correcting the mandibular positioning. This correction can lead to a final position of the mandible, by a slow movement over a defined period of time, or to a temporary position, for example in the case of anti-snoring orthoses, the mandible returning to its initial position when removing the orthosis. To this end, the invention relates to a mandibular correction orthosis, comprising a maxillary orthosis and a mandibular orthosis, characterized in that at least one maxillary or mandibular orthosis comprises an unlocking plane, and in that each orthosis comprises a device link, so as to allow the two maxillary and mandibular orthoses to occupy a connection configuration, in which they abut one against the other at least on the unlocking plane and in which their respective connecting devices are linked and maintain the binding configuration of both maxillary and mandibular orthoses.

The connecting device of at least one maxillary or mandibular orthosis can be arranged on the unlocking plane of the at least one maxillary or mandibular orthosis.

The device for connecting the maxillary and mandibular orthoses may comprise a groove on a maxillary or mandibular orthosis and a corresponding rib on the other orthosis, and / or a slide of corresponding shapes on each orthosis to form a dovetail sliding link. and / or at least one pad on a maxillary or mandibular orthosis and a corresponding opening on the other orthosis to allow interlocking connection.

The connecting device can be adjustable, allow an adjustable relative positioning of the two maxillary and mandibular orthoses in connection configuration. The mandibular correction orthosis may comprise a slide linkage device and a set screw arranged in a slideway to form a stop defining the relative positioning of the two maxillary and mandibular orthoses in connection configuration.

The connecting device may comprise several stud (s) and / or several opening (s), suitable for an adjustable interlocking of a maxillary or mandibular orthosis on the other orthosis, elastic interlocking forming a clipping or not. The maxillary orthosis and / or the mandibular orthosis may comprise a first portion in the form of a plastic material gutter providing at least one housing for receiving a tooth and maintaining clipping of said maxillary and / or mandibular orthosis. The maxillary orthosis may comprise a jack allowing a correction of the width of the patient's palate and / or at least one maxillary or mandibular orthosis may comprise a housing exerting an orthodontic correction force on at least one tooth. The invention also relates to a method of manufacturing a mandibular correction orthosis as described above, characterized in that it comprises the following steps: a. Scanning of a dental arch and numerical definition by a computer program of a first attachment portion of a maxillary and / or mandibular orthosis on a dental arch; b. Numerical definition of the shape of at least one unlocking plane of the maxillary and / or mandibular orthosis and of a connecting device of the maxillary and / or mandibular orthosis; vs. Manufacture of the maxillary and / or mandibular orthosis from the digital file obtained by the preceding steps. The step of manufacturing the maxillary and / or mandibular orthosis may include manufacturing by 3D printing or by machining or laser cutting or water jet. The invention also relates to a device for controlling the manufacture of a mandibular correction orthosis, characterized in that it comprises: a module for obtaining initial digital data relating to at least a part of a dentition in an initial dental disposition; a production module capable of producing a digital data file representing an orthosis adapted to said dentition and capable of exerting a mandibular correction effort; a control module for a device for manufacturing the orthosis, from the digital data file produced. The invention also relates to a computer program comprising program code instructions for performing the steps of the method as previously described when said program is executed by a processing unit. The invention also relates to a maxillary orthosis or mandibular orthosis of a mandibular correction orthosis, characterized in that it comprises an unlocking plane and a connecting device, so as to allow said orthosis to occupy a configuration of link, in which it bears on another mandibular or maxillary orthosis, by pressing on at least the unlocking plane, and in which its connecting device is capable of being connected to the connecting device of another mandibular orthosis or maxillary, able to ensure maintenance of the binding configuration of two maxillary and mandibular orthoses.

Brief description of the drawings

These objects, features and advantages of the present invention will be set forth in detail in the following description of particular embodiments given as a non-limiting example in relation to the appended figures among which:

FIG. 1 represents a maxillary mandibular advancement orthosis according to a first embodiment of the invention.

FIG. 2 represents a mandibular advancement orthosis according to the first embodiment of the invention.

Figures 3a to 3c schematically illustrate the cooperation between the maxillary and mandibular orthoses according to the first embodiment of the invention in different connection configuration.

FIG. 4 represents a maxillary mandibular advancement orthosis according to a second embodiment of the invention.

FIG. 5 represents a mandibular advancement mandibular orthosis according to the second embodiment of the invention.

Figure 6 schematically illustrates the cooperation between the maxillary and mandibular orthoses according to the second embodiment of the invention.

FIG. 7 represents a diagram of the system for producing a mandibular advancement orthosis according to one embodiment of the invention.

FIG. 8 represents a flowchart of the steps of the method for producing a mandibular advancement orthosis according to one embodiment of the invention.

Description of preferred modes of the invention

For the sake of simplicity, the same references will be used for the same components or equivalent components in the various embodiments of the invention. The invention is based on a mandibular correction orthosis comprising a maxillary orthosis, intended for fixation on an upper (i.e., maxillary) dental arch, and a mandibular orthosis, intended for fixation on a lower dental arch ( that is to say, mandibular). The two maxillary and mandibular orthoses may occupy a first connection configuration, in which they are interconnected and form a single assembly said monoblock, and a second configuration in which they are separated. For this functional reason, it is considered that the mandibular advancement orthosis implements a concept of "monobloc activable". In the first configuration, the maxillary orthosis serves to support the mandibular orthosis, in a position chosen so that the mandible is in an advanced position relative to its natural position, under the effect of the mandibular orthosis which is supported on the maxillary orthosis, thus exerting a correction of the mandibular positioning. Naturally, the mandibular correction orthosis requires the patient to have the mouth closed in its first configuration which is the active correction position, and it will preferably be worn at night.

According to the preferred embodiments of the invention, each orthosis, maxillary 1 and mandibular 11, comprises a first part 2, 12 intended for attachment to a dental arch. Advantageously, this first part is in the form of a gutter made of transparent plastic material providing recesses or cavities for receiving teeth, and allowing the orthosis to be held on the dentition by an elastic interlocking effect (clipping) on the teeth at these dwellings. For the sake of simplicity, we will call later "gutter" or "dental gutter" this first part 2, 12. We mean by gutter broadly any form comprising at least one housing for total or partial positioning on at least a tooth of a patient, and being fixed by clipping on at least one tooth of a patient. This gutter can have different shapes, include different materials and concern all or part of a patient's teeth. The housing may marry the contour of only a portion of the teeth, the walls of the gutter may have a reduced surface, or even perforated areas. In general, the groove will extend over all or almost all of the dental arch, and will form housing for all or almost all the teeth of this dental arch, thus ensuring a stable maintenance of the orthosis . The gutter thus comprises a vestibular wall, oriented towards the outside of the mouth, which covers all or part of the visible surface of the teeth, and a lingual wall, oriented towards the inside of the mouth, covering the hidden face of the teeth. These two walls are linked by an occlusal wall that covers the top of the teeth. By these three walls which follow the shape of a tooth, the first part 2, 12 of the maxillary 1 and mandibular orthosis 11 fulfills the function of maintaining the orthosis as explained above. These walls are preferably thin and transparent. These first portions 2, 12 preferably extend over almost the entire dental arch, and are symmetrical with respect to a central axis so as not to induce right / left imbalance in the mandibular advancement function. Such a first part 2, 12 of a mandibular advancement orthosis thus has the advantage of being comfortable, aesthetic because not very visible, and easy to manufacture, as will be detailed later. Alternatively, any other first portion for attachment, preferably removable, on a dental arch can be used, not necessarily a gutter.

Then, each orthosis comprises tracks or occlusal unlocking planes, arranged via extensions disposed above the occlusal surface of the dentition, and therefore on the occlusal wall of the first part of the orthosis described above. above. These extensions form unlocking planes 3, 13 or tracks substantially parallel to the occlusal surface. The unlocking plane 3 of the maxillary orthosis 1 is intended to rest on the unlocking plane 13 of the mandibular orthosis 11 in the first configuration of connection of the two orthoses. In this first configuration, this support between the unlocking planes 3, 13 prevents the natural imbrication of the two dental arches in closed mouth position, called occlusion, which allows to modify this natural position of the arches, which is to be corrected, to a position in which the mandible is advanced. Thus, these planes fulfill the function of occlusal unlocking, preventing the interlocking of the dental arches in the closed mouth position, which would no longer allow any relative movement between the mandible and the maxillary. For this, the two extensions have a minimum height to fulfill this unlocking function, while inducing minimal discomfort because they prevent the complete closure of the patient's mouth. In practice, this objective is achieved with a height of the order of 3 mm for each extension, which induces a positioning difference of 6 mm in connection configuration in which the planes 3, 13 are supported, compared to the natural closing position. Preferably, each orthosis comprises two unlocking planes 3, 13, distributed symmetrically on each lateral side of the orthosis.

As a variant, two unlocking planes 3, 13 of respectively a maxillary orthosis 1 and a mandibular orthosis 11, intended to cooperate, may not have such close geometries. For example, the two planes 3, 13 can be arranged at different heights above the occlusal wall of the first part of an orthosis. In an extreme variant, a single orthosis may have an extension with an unlocking plane, higher, which would bear against the occlusal wall of the first part of the other orthosis, which does not really include a dedicated complementary surface. On the other hand, the extensions advantageously form planes which extend over a fairly large surface of the orthosis, for example corresponding to at least two or three teeth, to reach a stable support and implement the adjustable connection which will be explained below. Alternatively, these plans may have other forms, for example shortened. According to another variant, there may be more than two unlocking planes. According to another variant, a single plane may suffice, for example at the level of the frontal extension shown. Finally, these planes can be associated with a setting device, type of adjustment screw, to move them in height and adjust the height chosen for the relative support of the two orthoses.

Then, each orthosis comprises a connecting device, allowing the connection of the two orthoses maxillary 1 and mandibular 2 in connection configuration.

According to the first embodiment of the invention, represented by FIGS. 1 to 3, the maxillary orthosis 1 comprises a plurality of cylindrical openings 4 arranged in an unlocking plane 3 of its occlusal unlocking extension. In addition, the mandibular orthosis 11 comprises cylindrical studs 14 arranged in relief above an unlocking plane 13. These studs 14 have a shape corresponding to the openings 4, to allow the connection between these two elements by interlocking, consisting of by insertion of a stud 14 into an opening 4. This insertion then ensures the maintenance of the two orthoses in the first connection configuration, in the manner of a connection between two pieces of the game known under its trademark "lego" . The holding force exerted by this connection device between the orthoses, consisting of the openings 4 and pads 14 described above, is chosen so as to obtain a reliable hold when wearing the night in first binding configuration, while allowing the disassembly of the connection if the patient wishes by the force exerted by opening the mouth, allowing then to reach the second position of the mandibular correction orthosis.

According to an alternative embodiment, this interlocking can be elastic, the pads and openings implementing a clipping type connection. According to another variant, there may be any number of pads / openings, at least one. One orthosis may have a single stud, and the other several openings, or vice versa. Naturally, the studs and openings may be indifferently inverted, the openings may be on the mandibular orthosis 11 and not on the maxillary orthosis 1. Finally, a stud and an opening may have another geometry that is not necessarily cylindrical, for example triangular, square, polygonal, ellipsoidal, etc.

The fact of having several studs 14 and openings 4 on laterally arranged planes 13, 3, as shown in the figures, has the advantage of allowing several different connections between the two maxillary and mandibular orthoses 1. This allows for example to proceed to a progressive mandibular advance, or to adapt the correction force to the patient concerned, taking into account for example any discomfort felt.

FIGS. 3a to 3c thus illustrate, by way of example, three different possible connections of the two orthoses using three openings 4 and three pads 14 on each plane 3, 13. The maxillary orthosis 1 according to the first embodiment furthermore comprises a 5 palatine bonding surface, extending from one side of the gutter to the other partially marrying the shape of the palace. This surface 5 improves the correct positioning and maintenance of the maxillary orthosis 1. It also forms a reinforcing spacer of the orthosis. The mandibular orthosis 11 comprises another extension 15 in its front part, particularly visible in FIG. 6, arranged above the occlusal wall of the first part 12. This extension is positioned at the level of the opening of the mouth , in the binding configuration of the mandibular correction orthosis, and thus closes the slight opening of the mouth induced by the occlusal unlocking of the orthosis.

According to the second embodiment of the invention, represented by FIGS. 4 to 6, the maxillary orthosis 1 comprises a groove 6 arranged on the unlocking plane 3, which comprises a circular section truncated at its connection with the plane 3. At its inner end, for positioning towards the bottom of the mouth, the groove 6 comprises a screw thread in which is screwed a set screw 7, which forms a stop as will be explained later. The mandibular orthosis 11 comprises a rib 16 arranged on the unlocking plane 13, which comprises a truncated circular section at its connection with the unlocking plane 13. The shape of the rib 16 corresponds to the groove 6, so that the rib 16 can be inserted into the groove 6, through its forward end 8 opening, then slid within this groove to abut against the adjusting screw 7. This stop thus defines the relative positioning of the two orthoses in the first connection configuration, particularly illustrated by the front view of Figure 6, wherein the groove is positioned in the rib. As a remark, the stop is arranged so as to come in opposition to the natural effort exerted by the mandible which tends to want to resume its natural position which is correct. In the illustrated example, the mandible tends to occupy a position too far back, and will naturally exert a force backwards on the mandibular orthosis, which thus naturally maintains its rib bearing against the stop.

The shape of the groove / rib components prevents any spacing of the two orthoses in a direction having a vertical component to the unlocking planes 3, 13, by a dovetail sliding connection principle. It allows their separation only by the reverse sliding of the rib in the groove, so in a direction parallel to the unlocking planes. Thus, the grooves and ribs shown may alternatively take other forms, forming all slides forming a dovetail slide connection.

In both embodiments, the relative position of the two orthoses in their connection configuration is optionally adjustable. To ensure this adjustment, a relative direction of movement of the two orthoses is made possible by the components of their respective connecting device. It is noted that this direction guarantees a displacement in the direction of the mandibular advance. The components providing the connecting function remain substantially equidistant between the two lateral sides of the orthoses, which is manifested by their positioning in a direction occupying substantially part of the diagonal of the unlocking planes 3,13.

Naturally, the invention is not limited to the two embodiments shown. In particular, the connecting devices can be in other forms, allowing a connection with a reliable hold for example during the sleep of a patient, while allowing the release of the two orthoses in a second configuration. The connection is therefore removable. As a note, in connection configuration, the two orthoses are linked by the connecting devices, which are such that they allow the two unlocking planes of the two orthoses to come into contact. The connecting device is advantageously arranged in extensions comprising unlocking planes, but not necessarily. It may comprise two lateral parts symmetrically arranged with respect to the front-rear axis of the orthosis, or alternatively only one part or more of two may be suitable. For example, the connecting device could be integrally arranged on a single frontal extension of the orthoses. On the other hand, the mandibular correction orthosis, which includes a maxillary orthosis and a mandibular orthosis, was particularly illustrated for correction consisting of a mandibular advancement, which corresponds to almost all the necessary corrections. Of course, the same concept can be implemented for any other correction direction. In addition, the two orthoses can be attached to one another in their rear part, in an articulated manner, or be completely independent, in the second configuration of the mandibular correction orthosis.

Finally, the mandibular correction orthosis may alternatively perform complementary corrective functions, for example of the orthodontic type. In particular, a jack can be arranged at the spacer 5 of the maxillary orthosis, which could be formed of two independent and movable lateral parts relative to each other under the effect of this jack, to put implement a function of enlarging the palate. On the other hand, the first part of the orthoses, fixed on the dentition, can have a corrective action of the individual position of one or more tooth (s) incorrectly positioned (s), according to a conventional orthodontic approach. Thus, the gutter may include a housing for a tooth slightly offset from the tooth it covers so as to exert a corrective force on the tooth, in a known manner. The invention relates to a mandibular correction orthosis, comprising a maxillary orthosis and a mandibular orthosis. It also relates to a maxillary orthosis and a mandibular orthosis as such. The invention also relates to a rapid and low-cost method for manufacturing a mandibular correction orthosis.

The method of producing a mandibular correction orthosis applies separately to a maxillary orthosis (1) and a mandibular orthosis (11), or to both orthoses more or less simultaneously, (for this reason we will use the term simplified "orthesis" later, this term may mean maxillary or mandibular orthosis or mandibular correction) is implemented by a system shown in Figure 7 and comprising the following elements: - an image capture device 31, - a control device 30 and - a manufacturing device 32.

The manufacturing method comprises a first step E1 for obtaining initial digital data relating to all or part of a dentition of a patient. The step E1 comprises an image capture sub-step E10 during which the image capture device 31 takes digital images IM, (with i = 1, 2, ... N where N is the total number captured images) of all or part of the dentition. The image capture device 31 is advantageously an intraoral camera intended to take images directly inside the patient's mouth. Alternatively, a three-dimensional model of all or part of the dentition of the patient can be manufactured beforehand, in a known manner, by molding made from an impression of the dentition, and then taking digital images of the model using the image capture device.

The image data IM, (with i = 1, 2, ..., N) represent all or part of the dentition of the patient. They are transmitted to the control device 30 and received by the control device 30 during a transmission substep E11. The step E1 for digitizing the dentition and for transmitting initial digital data IM, is followed by a step E2 of virtual 3D representation of all or part of said dentition of the patient, from the initial digital data received (that is i.e. IM image data,). A component of the controller 30 processes the received image data IM, and generates an initial digital data set, denoted DATA0, representing a virtual three-dimensional model MOD0. This MOD0 model represents virtually all or part of the patient's teeth. It is represented virtually, for example by display on a screen of the control device 30, to allow an operator to view and manipulate it virtually if necessary. The representation step E2 is followed by a step E3 of elaboration of the mandibular correction to be performed. For example, the appropriate mandibular advancement range is developed, either from the obtained numerical data and from a virtual representation using the MOD0 model, or directly to the patient himself. This step can be performed in a manner known from the state of the art.

Alternatively, this step E3 may optionally include the development of one or more modifications made virtually on one or more modeled teeth to obtain an orthodontic correction of the dentition. Thus, during step E3, it is possible to create a three-dimensional virtual model MODi of at least a portion of the modified dentition of the patient. This model MOD-ι is defined by a dataset DATA !. In all cases, these data include parameters representing the mandibular corrections to be made.

The steps E2 and E3 are executed by a software component of the control device 30. The modified appearance of the mandibular arch, and possibly teeth, is here obtained by a virtual manipulation of the mandibular arch, and possibly a or several teeth, performed by an operator using man-machine interface means 25 of the control device 30. Note that any method of the state of the art for defining the mandibular correction can be implemented.

The method continues with a step E4 of producing a digital data file virtually representing a orthosis Gi adapted to the dentition of the patient and artificially reproducing the envisaged mandibular correction. By the expression "adapted to the dentition of the patient" is meant that the orthosis is adapted to conform to the shape of at least a portion of the teeth of the patient, for, in the embodiment envisaged, to allow a fixation. by clipping the orthosis. In particular, the first part of the orthosis comprising walls adapted to conform to the shape of one or more patient support teeth, that is to say the gutter, is developed.

As a remark, the step E4 implemented in the case of an orthosis to be clipped on the teeth may comprise several substeps, among which: in a substep E41, the digital data representing the occlusal shape of the orthosis at the level of the support teeth, that is to say representing the first part of the gutter type of the orthosis, are obtained by constructing the negative of a virtual model MOD0 representing all or part of the dentition of the patient, established at step E2; in another substep E42, the digital data representing one or more gingival ends of this first part of the orthosis, vestibular and / or lingual sides, are obtained. A first approach considers the digital data of the virtual model MOD0, representing all or part of the patient's dentition, and the gingival ends of the orthosis are established from the ends given by the virtual model. A second approach is to fix average pre-stored tooth heights in an electronic memory for certain categories of teeth, and to base the calculation of the gingival extremities on these average values and the knowledge of the type of tooth considered. The gingival extremities of the orthosis are calculated to correspond to the real boundary between the actual dentition and the actual gingiva; another substep E43 makes it possible to establish at least one occlusal unlocking plane. For this, the practitioner works advantageously on a virtual representation of the first part of the orthosis, established by the two previous substeps. This first part of the orthosis can be presented on a screen of the control device, via a human machine interface. This representation can be associated with the representation of the real dentition of the patient. Then, the practitioner can choose in a digital library, present on an electronic memory of the control device, one or more unlocking planes formed on particular extension models, and virtually position said extensions and their plans on the first part of the control. brace. A software component can assist the practitioner to achieve the ideal overlay of the high and low unlocking planes; another substep E44 consists of a positioning of the connection device of the orthosis. In a similar manner, the practitioner chooses from a library the linking device which seems to him the most adapted and positions it on the still incomplete incomplete representation of the orthosis.

As a remark, the two substeps E43 and E44 mentioned above could alternatively be automated, a software component automatically positioning the extensions on an occlusal wall of the first part of the orthosis made from the dentition of the patient, and taking into account the desired mandibular advancement parameter.

The digital file Fi representing the orthosis Gi thus contains a set of digital data defining the structure of the orthosis and possibly data useful for the construction of the orthosis G-ι. It is determined automatically from the virtual model MOD0 and / or MOD-i of all or part of the patient's dentition and mandibular correction data, as created in the previous steps. The digital file Fi of the orthosis Gi may also contain instruction data intended to control the manufacture of the orthosis Gi by the manufacturing device 32.

The process then proceeds to a step E5 of manufacturing the orthosis, denoted Gi. The manufacturing is carried out by the manufacturing device 32. It can use a manufacturing technique by addition of material, for example by three-dimensional printing. Alternatively, it can use a manufacturing technique by subtraction of material. In this case, the orthosis is for example manufactured by machining a block of material, or laser cutting or jet water.

During the manufacturing step E5, the manufacturing device 32 is controlled by commands obtained from the digital file corresponding to the orthosis to be manufactured. In this case, the controller 30 transmits manufacturing control instructions 32 to the manufacturing device 32 (e.g., 3D printing control instructions or machining control instructions, depending on the technique used). Alternatively, the controller 30 could transmit the F-ι file to the manufacturing device. In this case, the manufacturing control instructions would be generated from the F-ι file directly by the manufacturing device.

The material used for the manufacture of the orthosis may be a biocompatible material. It is advantageously recyclable. This makes it possible to recycle worn orthotics to make new orthoses.

Thanks to the production of a digital orthosis construction file, it can be manufactured directly, without intermediate step of realizing a three-dimensional model of the patient's dentition. With this, the orthosis can be manufactured in the dentist's office quickly. A single visit to the dentist may even be sufficient to obtain the initial DATA0 data representing the patient's dentition (in whole or in part), then construct the orthosis and have it tested on the patient.

The device for controlling the manufacture of an orthosis comprises the following modules: a module 20 for obtaining initial digital data representing all or part of a dentition of a patient, in this case IM image data ,; a module 21 for creating virtual models MOD0, MOD-i representing all or part of the patient's dentition, in its actual appearance and optionally in a modified appearance in a variant with orthodontic function; a production module 22 able to produce at least one digital data file representing a virtual orthosis Gi adapted to the dentition of the patient 21; an interface 23 for connection with the manufacturing device 32; a control module 24 able to control a device for manufacturing the orthosis, from the digital data file; man-machine interface means 25; a processing and control central unit (CPU) 26, here comprising a microprocessor, to which all the elements 20-25 of the device are connected and intended to control its operation. The invention also relates to a system comprising the image capture device 31, the control device 30 and the manufacturing device 32. The three components 31, 32 and 33 of the system are here separated. The image capture device 31 and the manufacturing device 32 may be connected to the wired or wireless link controller. Alternatively, the image capture device 31 and / or the manufacturing device 32 may be integrated with the controller 30. The invention also relates to a computer program comprising program code instructions for executing the steps of the method previously described when said program is executed by a processing unit, in this case the unit 26.

Claims (13)

A mandibular correction orthosis, comprising a maxillary orthosis (1) and a mandibular orthosis (11), characterized in that at least one maxillary (1) or mandibular (11) orthosis comprises an unlocking plane (3; 13) , and in that each orthosis comprises a connecting device, so as to allow the two maxillary (1) and mandibular (11) orthoses to occupy a binding configuration, in which they are supported against each other at least on the unlocking plane (3, 13) and in which their respective connecting devices are connected and provide maintenance of the binding configuration of the two maxillary and mandibular orthoses. 2. mandibular correction orthosis according to the preceding claim, characterized in that the connecting device of at least one maxillary (1) or mandibular orthosis (11) is arranged on the unlocking plane (3, 13) of the at least a maxillary (1) or mandibular (11) orthosis. Mandibular correction orthosis according to one of the preceding claims, characterized in that the device for connecting the maxillary (1) and mandibular (11) orthoses comprises a groove (6) on a maxillary or mandibular orthosis and a rib (16). ) corresponding on the other orthosis, and / or a slide of corresponding shapes on each orthosis to form a dovetail sliding connection, and / or at least one stud (14) on a maxillary or mandibular orthosis and an opening ( 4) on the other orthosis to allow interlocking connection. 4. mandibular correction orthosis according to one of the preceding claims, characterized in that it comprises an adjustment device associated with the connecting device, to allow an adjustable relative positioning of the two maxillary (1) and mandibular (11) orthoses in link configuration. Mandibular correction orthosis according to the preceding claim, characterized in that it comprises a sliding link device and a set screw (7) arranged in a slideway to form a stop defining the relative positioning of the two maxillary and mandibular orthoses. in link configuration. 6. mandibular correction orthosis according to claim 4, characterized in that the connecting device comprises a plurality of stud (s) (14) and / or several opening (s) (4), suitable for an adjustable interlocking of a maxillary orthosis or mandibular on the other orthosis, elastic interlocking forming a clipping or not. 7. Mandibular correction orthosis according to one of the preceding claims, characterized in that the maxillary orthosis (1) and / or the mandibular orthosis (11) comprises a first portion (2, 12) in the form of a gutter made of material plastic housing at least one housing for receiving a tooth and ensure a maintenance by clipping of said maxillary orthosis (1) and / or mandibular (11). Mandibular correction orthosis according to one of the preceding claims, characterized in that the maxillary orthosis (1) comprises a jack allowing a correction of the width of a patient's palate and / or in that at least one maxillary (I) or mandibular (11) orthosis comprises a housing exerting an orthodontic correction force on at least one tooth. 9. A method of manufacturing a mandibular correction orthosis according to one of the preceding claims, characterized in that it comprises the following steps: a. Scanning of a dental arch (E1) and numerical definition (E41, E42) by a computer program of a first part (2, 12) for fixing a maxillary (1) and / or mandibular (11) orthosis on a dental arch; b. Numerical definition (E43) of the shape of at least one unlocking plane (3, 13) of the maxillary (1) and / or mandibular orthosis (11) and of an orthosis connecting device (E44) maxillary (1) and / or mandibular (11); vs. Fabrication (E5) of the maxillary (1) and / or mandibular (11) orthosis from the digital file obtained by the preceding steps. 10. A method of manufacturing a mandibular correction orthosis according to the preceding claim, characterized in that the manufacturing step (E5) of the maxillary orthosis (1) and / or mandibular (II) comprises the manufacture by 3D printing or by machining or laser cutting or water jet. 11. Control device for the manufacture of a mandibular correction orthosis, characterized in that it comprises: a module (20) for obtaining initial digital data relating to at least a part of a dentition in a provision initial dental a production module (22) capable of producing a digital data file (Fn) representing an orthosis adapted to said dentition, including at least one unlocking plane (3, 13) of a maxillary orthosis (1) and / or mandibular (11) and a connecting device of the maxillary (1) and / or mandibular (11) orthosis, and able to exert a mandibular correction effort; - A module (24) for controlling a manufacturing device (32) of the orthosis, from the product digital data file. A computer program comprising program code instructions for performing the steps of the method according to any one of claims 9 or 10 when said program is executed by a processing unit (26). 13.Anaxillary orthosis (1) or mandibular orthosis (11) of a mandibular correction orthosis, characterized in that it comprises an unlocking plane (3; 13) and a connecting device, so as to allow said orthosis to occupy a configuration of connection, in which it is supported on another mandibular orthosis (11) or maxillary (1), by pressing on at least the unlocking plane (3, 13), and wherein its device of link is able to link with the connecting device of another mandibular orthosis (11) or maxillary (1), adapted to ensure maintenance of the binding configuration of two orthoses maxillary (1) and mandibular (11).