ES2594496B1 - Device for locating the occlusal plane in a traditional articulator based on virtual work - Google Patents
Device for locating the occlusal plane in a traditional articulator based on virtual work Download PDFInfo
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- ES2594496B1 ES2594496B1 ES201500452A ES201500452A ES2594496B1 ES 2594496 B1 ES2594496 B1 ES 2594496B1 ES 201500452 A ES201500452 A ES 201500452A ES 201500452 A ES201500452 A ES 201500452A ES 2594496 B1 ES2594496 B1 ES 2594496B1
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- articulator
- splint
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/08—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator
Abstract
Dispositivo de localización del plano oclusal en un articulador tradicional a partir de un trabajo virtual.#Dispositivo de localización del plano oclusal en un articulador (2) a partir de un trabajo virtual caracterizado porque comprende un cuerpo base (3) y una férula (1) situada sobre el cuerpo base (3), donde la férula (1) comprende una huella dentaria (6) dentaria de un paciente, tales que con el cuerpo base (3) fijado a una rama del articulador (2) la huella dentaria (6) localiza la posición del plano oclusal del paciente en el articulador (2) en su posición real en el espacio, adicionalmente el cuerpo base (3) comprende una superficie de unión al articulador (4) y una superficie de recepción de la férula (5) paralelas entre sí y separadas una distancia (D), donde la distancia (D) es distinta según el articulador (2) sobre el que se sitúa.Device for locating the occlusal plane in a traditional articulator from a virtual work. # Device for locating the occlusal plane in an articulator (2) from a virtual work characterized in that it comprises a base body (3) and a splint (1 ) located on the base body (3), where the splint (1) comprises a dental footprint (6) of a patient's tooth, such that with the base body (3) attached to a branch of the articulator (2) the dental footprint (2) 6) locates the position of the occlusal plane of the patient in the articulator (2) in its real position in the space, additionally the base body (3) comprises a joint attachment surface (4) and a splint receiving surface ( 5) parallel to each other and separated a distance (D), where the distance (D) is different according to the articulator (2) on which it is placed.
Description
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descripciondescription
DISPOSITIVO DE LOCALIZACION DEL PLANO OCLUSAL EN UN ARTICULADOR TRADICIONAL A PARTIR DE UN TRABAJO VIRTUALDEVICE FOR LOCALIZATION OF THE OCLUSAL PLANE IN A TRADITIONAL ARTICULATOR FROM A VIRTUAL WORK
SECTOR DE LA TECNICATECHNICAL SECTOR
El dispositivo de control de posicionamiento del piano oclusal en un articulador es de aplicacion en la industria de la implantologla dental principalmente en la realization de ciruglas ortognaticas donde la localizacion del piano oclusal para realizar la cirugla ortognatica a partir de unos datos reales es de vital importancia en el exito de la cirugla.The positioning control device of the occlusal piano in an articulator is of application in the dental implantology industry mainly in the realization of orthognathic surgeries where the location of the occlusal piano to perform orthognathic surgery from real data is of vital importance in the success of the surgery.
ANTECEDENTES DE LA INVENCION Y PROBLEMA TECNICO A RESOLVERBACKGROUND OF THE INVENTION AND TECHNICAL PROBLEM TO BE SOLVED
En muchas ocasiones, las alteraciones en el esqueleto facial provocan defectos en la oclusion dentaria que no se pueden corregir mediante una ortodoncia y que requieren de un tratamiento de cirugla ortognatica, en el que se corrigen los defectos a los que un tratamiento de ortodoncia no llega.In many cases, alterations in the facial skeleton cause defects in dental occlusion that cannot be corrected by orthodontics and that require orthognathic surgery treatment, in which the defects that an orthodontic treatment does not reach are corrected .
El objetivo de la correction de los huesos maxilares realizada por la cirugla ortognatica es lograr una oclusion adecuada, restablecer la funcion masticatoria y mejorar la estetica facial, para lo que se modifica el piano oclusal del paciente. Para ello se corrige la posicion de los huesos maxilares, es decir, el maxilar superior y/o la mandlbula, de modo que la mandlbula se mueve a una posicion mas adecuada, mas estetica, mas funcional y mas saludable; esto se logra a traves de la combination de dos areas o especialidades medico-odontologicas: la ortodoncia que mueve los dientes y la cirugla maxilofacial que mueve los huesos en los que se apoyan los dientes.The objective of the correction of the maxillary bones performed by the orthognathic surgery is to achieve an adequate occlusion, restore the masticatory function and improve facial aesthetics, for which the patient's occlusal piano is modified. For this, the position of the maxillary bones is corrected, that is, the upper jaw and / or the jaw, so that the jaw moves to a more adequate, more aesthetic, more functional and healthier position; This is achieved through the combination of two areas or medical-dental specialties: orthodontics that moves the teeth and the maxillofacial surgery that moves the bones on which the teeth rest.
En la cirugla ortognatica, despues del primer analisis facial, se realizan una serie de mediciones (estudio cefalometrico) y se cuantifica la magnitud de la desproporcion entre los huesos maxilares y se planifican unos movimientos quirurgicos a realizar en los citados huesos maxilares, siendo muy exacta la relation entre dicha planificacion y el resultado final.In the orthognathic surgery, after the first facial analysis, a series of measurements are made (cephalometric study) and the magnitude of the disproportion between the maxillary bones is quantified and surgical movements are planned to be performed in said maxillary bones, being very exact the relationship between said planning and the final result.
La planificacion de los movimientos a realizar en la cirugla ortognatica, que sirve de gula al cirujano, se plasma en una ferula quirurgica, en la que se muestra la oclusion final que debe tener el grupo de huesos que se esta operando, utilizando como referenda siempre el grupoThe planning of the movements to be performed in the orthognathic surgery, which serves as a gluttony to the surgeon, is reflected in a surgical splint, which shows the final occlusion that the group of bones that are being operated must have, using as reference always the group
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opuesto dp huesos, esto es si se esta operando el maxilar superior, la ferula quirurgica se apoya en la mandibula para mostrar la oclusion de los dientes del maxilar superior sobre la mandibula, y viceversa si se esta operando la mandibula de un paciente la ferula quirurgica se apoya en el maxilar superior para mostrar la oclusion de los dientes de la mandibula sobre el maxilar superior, y si son los dos grupos de huesos los que se tienen que operar se realizan dos ferulas quirurgicas, una primera que se apoya en el grupo de huesos sin operar y una segunda en la que la referenda es el grupo de huesos ya operado.opposite dp bones, that is if the upper jaw is being operated, the surgical splint rests on the jaw to show the occlusion of the teeth of the upper jaw on the jaw, and vice versa if a patient's jaw is being operated the surgical splint it rests on the upper jaw to show the occlusion of the jaw teeth on the upper jaw, and if it is the two groups of bones that have to be operated, two surgical splints are performed, a first that is supported by the group of bones without operating and a second one in which the reference is the group of bones already operated.
Los movimientos a aplicar en la cirugia ortognatica, se plasman en desplazamientos que se cuantifican en los tres ejes del espacio como los desplazamientos del extremo apical de una serie de dientes que se emplean como referencia.The movements to be applied in orthognathic surgery, are reflected in displacements that are quantified in the three axes of space such as displacements of the apical end of a series of teeth that are used as a reference.
Para poder trabajar en los movimientos que se quieren realizar en un paciente es necesario establecer un punto de partida, que viene determinado por el piano oclusal del paciente. Ese punto de partida en la actualidad se obtiene mediante el dispositivo conocido como arco facial, cuya mision es localizar, de forma manual y mediante apoyo en tejido blando, el piano oclusal del paciente. Oicho arco facial, en colaboracion con un articulador, permite posicionar una reproduccion dentaria del paciente en el articulador, con la misma disposition que presenta en el craneo y en concreto con las articulaciones temporomandibulares. En resumen, el arco facial es un instrumento capaz de determinar las relaciones entre los arcos dentarios, pudiendo ser transferidas del paciente al articulador con los mecanismos condilares del articulador.In order to work on the movements that you want to perform on a patient, it is necessary to establish a starting point, which is determined by the patient's occlusal piano. This starting point is currently obtained by means of the device known as the facial arch, whose mission is to locate, manually and through soft tissue support, the patient's occlusal piano. Oicho facial arch, in collaboration with an articulator, allows to position a dental reproduction of the patient in the articulator, with the same disposition that it presents in the skull and specifically with the temporomandibular joints. In summary, the facial arch is an instrument capable of determining the relationships between the dental arches, and can be transferred from the patient to the articulator with the condylar mechanisms of the articulator.
En el estado de la fecnica, una vez se ha localizado el piano oclusal del paciente, se desarrollan las ferulas quirurgicas, a partir del movimiento realizado en reproducciones dentarias del paciente fabricadas en cera y escayola que el tecnico de laboratorio se encargaba de modelar a mano y se busca la posicion final de la dentadura del paciente reproduciendo los movimientos planificados por un cirujano a mano en un articulador, para finalmente, una vez se habia obtenido en la reproduccion dentaria dicha posicion se comprobaba mediante un calibre asociado a una mesa de medida, que los desplazamientos de los dientes de referencia eran correctos.In the state of the art, once the patient's occlusal piano has been located, the surgical splints are developed, based on the movement made in dental reproductions of the patient made of wax and plaster that the laboratory technician was responsible for modeling by hand and the final position of the patient's denture is sought by reproducing the movements planned by a surgeon by hand in an articulator, finally, once the dental reproduction had been obtained, said position was checked by means of a caliber associated with a measuring table, that the displacements of the reference teeth were correct.
Todo el trabajo que se ha realizado hasta el momento parte de la identification del piano oclusal del paciente realizado con un arco facial que se apoya en tejido blando, y donde tienes que imaginar que el piano oseo que pretendes utilizar como referencia para el montaje de los parametros seleccionados, es el real a partir de los tejidos blandos del paciente y laAll the work that has been done so far starts with the identification of the patient's occlusal piano performed with a facial arch that is supported by soft tissue, and where you have to imagine that the bone piano that you intend to use as a reference for the assembly of the Selected parameters, is the real one from the patient's soft tissues and the
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experiencia indica que el porcentaje de error en la localizacion del piano oclusal del paciente mediante el empleo del arco facial es muy alto, lo que se traduce en que la information de partida a partir de la que se desarrollan los estudios para realization de ciruglas ortognaticas es erronea.experience indicates that the percentage of error in the location of the occlusal piano of the patient through the use of the facial arch is very high, which translates into the fact that the starting information from which studies are carried out to perform orthognathic surgeries is wrong.
En la actualidad gracias al desarrollo de la tecnologia de trabajo virtual, el trabajo anterior se esta desarrollando de forma virtual, donde a partir del estudio realizado por un cirujano se desarrollan las ferulas quirurgicas mediante programas de generation de imagenes y movimiento virtual de cirugia ortognatica, que tienen una precision mucho mayor comparada con los metodos tradicionales.At present, thanks to the development of virtual work technology, the previous work is being developed in a virtual way, where from the study carried out by a surgeon the surgical splints are developed through programs of generation of images and virtual movement of orthognathic surgery, which have a much greater precision compared to traditional methods.
Ahora bien, los programas que se emplean para realizar los movimientos virtuales son manejados portecnicos expertos en su trabajo, pero que no estan exentos de poder introducir algun error en los protocolos de fabricacion de la ferula, esto es durante la introduction de los movimientos virtuales en el programa, y el programa reproducira fielmente el error cometido con exactitud para posteriormente fabricar dicha ferula quirurgica mediante una impresora 3d o cualquier otro metodo. E igualmente se parte de la posicion initial que ha proporcionado un arco facial en colaboracion con un articulador, que como ya se ha expuesto, se apoya en tejidos blandos del paciente lo que implica errores de partida en la posicion del piano oclusal del paciente.However, the programs used to perform virtual movements are handled by experts in their work, but they are not exempt from being able to introduce any error in the manufacturing protocols of the splint, that is during the introduction of virtual movements in the program, and the program will faithfully reproduce the mistake made exactly to later manufacture said surgical splint using a 3d printer or any other method. And it also starts from the initial position that has provided a facial arch in collaboration with an articulator, which, as already stated, relies on the patient's soft tissues, which implies starting errors in the position of the patient's occlusal piano.
No se conoce en el estado de la tecnica ningun instrumento que realice un control de la fabricacion precisa de las ferulas quirurgicas obtenidas mediante programas informaticos, que si bien ofrecen una capacidad de trabajo con una exactitud mucho mayor que el trabajo manual que se realizaba antes, no existe en la actualidad capacidad de controlar si los movimientos introducidos en el programa estan bien ejecutados o por el contrario se ha introducido algun error que posteriormente se transmite a la fabricacion de la ferula quirurgica.It is not known in the state of the art any instrument that performs a precise manufacturing control of the surgical splints obtained through computer programs, which although they offer a work capacity with much greater accuracy than the manual work that was done before, There is currently no ability to control whether the movements introduced in the program are well executed or, on the contrary, an error has been introduced that is subsequently transmitted to the manufacturing of the surgical splint.
El solicitante no conoce ningun documento en el que se divulgue un dispositivo similar al dispositivo objeto de la presente invencion.The applicant does not know of any document in which a device similar to the device object of the present invention is disclosed.
EXPLICACION DE LA INVENCIONEXPLANATION OF THE INVENTION
El objeto de la invencion es un dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual que comprende un cuerpo base y una ferula situada sobre el cuerpo base. La ferula comprende una huella dentaria de un paciente.The object of the invention is a device for locating the occlusal piano in an articulator from a virtual work comprising a base body and a ferula located on the base body. The splint comprises a tooth imprint of a patient.
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En el dispositivo objeto de la invencion con el cuerpo base fijado a una rama del articulador la huella dentaria localiza la posicion del piano oclusal del paciente en el articulador en su posicion real en el espacio.In the device object of the invention with the base body fixed to a branch of the articulator, the dental footprint locates the position of the patient's occlusal piano in the articulator in its real position in space.
En el dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual el cuerpo base comprende una superficie de union al articulador y una superficie de recepcion de la ferula, siendo las dos superficies paralelas entre si y estando separadas una distancia fija, pero siendo esa distancia fija distinta segun el articulador sobre el que se situa.In the device for locating the occlusal piano in an articulator from a virtual work the base body comprises a joint surface to the articulator and a receiving surface of the splint, the two surfaces being parallel to each other and a fixed distance being separated, but being that fixed distance different according to the articulator on which it is located.
En el dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual la superficie de recepcion de la ferula comprende al menos dos rebajes en forma de cruz donde se apoya la ferula por medio de una estructura de apoyo.In the device for locating the occlusal piano in an articulator from a virtual work, the reception surface of the splint comprises at least two cross-shaped recesses where the splint is supported by means of a support structure.
La estructura de apoyo del dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual comprende al menos dos piezas lineales en forma de cruz para situarse en correspondencia con los rebajes de la superficie de recepcion de la ferula.The support structure of the occlusal piano location device in an articulator from a virtual work comprises at least two linear cross-shaped pieces to be placed in correspondence with the recesses of the receiving surface of the splint.
En el dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual los rebajes y las piezas lineales comprenden una seccion transversal de igual forma, tal que las piezas lineales se situan en los rebajes.In the device for locating the occlusal piano in an articulator from a virtual work, the recesses and the linear pieces comprise a cross section in the same way, such that the linear pieces are located in the recesses.
En el dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual la ferula comprende unos elementos de conexion entre la huella dentaria y la estructura de apoyo.In the device for locating the occlusal piano in an articulator from a virtual work, the splint comprises some connection elements between the dental footprint and the support structure.
El cuerpo base del dispositivo de localizacion del piano oclusal en un articulador a partir de un trabajo virtual es un cuerpo aligerado con una parte central entre la superficie de union al articulador y la superficie de recepcibn de la ferula que comprende al menos dos columnas.The base body of the occlusal piano location device in an articulator from a virtual work is a lightened body with a central part between the joint surface to the articulator and the receiving surface of the splint comprising at least two columns.
BREVE DESCRIPCION DE LOS DIBUJOSBRIEF DESCRIPTION OF THE DRAWINGS
Para complementar la description que se esta realizando y con objeto de ayudar a una mejor comprension de las caracteristicas de la invencion, se acompaha como parte integrante de dicha descripcion, un juego de dibujos en donde con caracter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is accompanied as an integral part of said description, where with an illustrative and non-limiting nature, the next:
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Figura 1Muestra una vista en perspectiva del dispositivo de la invention.Figure 1 Shows a perspective view of the device of the invention.
Figura 2.- Muestra una vista lateral del dispositivo de la invention.Figure 2.- Shows a side view of the device of the invention.
Figura 3.- Muestra una vista en perspectiva del montaje de la invention.Figure 3.- Shows a perspective view of the assembly of the invention.
Figura 4.- Muestra la situation de una representation radiologica de un craneo con los dos pianos de referenda que se emplean para obtener la huella dental.Figure 4.- Shows the situation of a radiological representation of a skull with the two reference pianos that are used to obtain the dental footprint.
Figura 5.- Muestra la digitalization de un articulador que se emplea en el procedimiento de obtencion de la huella en un programa de trabajo virtual.Figure 5.- Shows the digitalization of an articulator that is used in the procedure of obtaining the fingerprint in a virtual work program.
Figura 6.- Muestra el craneo ya situado en un su position de referenda con la digitalization del articulador sobre la representation del craneo.Figure 6.- Shows the skull already located in its reference position with the digitalization of the articulator on the representation of the skull.
Figura 7.- Muestra el paso en el que una ferula virtual se hace intersecar con la reproduction dentaria del paciente virtual para extraer la huella dentaria virtual.Figure 7.- Shows the step in which a virtual splint is intersected with the dental reproduction of the virtual patient to extract the virtual dental footprint.
Figura 8.- Muestra una ferula virtual con la huella dentaria virtual unida a la estructura de apoyo virtual con unos elementos de conexion virtuales sobre el cuerpo base virtual y todo situado en un articulador virtual.Figure 8.- It shows a virtual splint with the virtual dental footprint attached to the virtual support structure with virtual connection elements on the virtual base body and everything located in a virtual articulator.
A continuation se puede encontrar un listado de las referencias numericas empleadas en las figures y los elementos a los que correspondedBelow you can find a list of the numerical references used in the figures and the elements to which they correspond
1. - ferula;1. - splint;
2. - articulador;2. - articulator;
3. - cuerpo base;3. - base body;
4. - superficie de unibn al articulador;4. - joint surface to the articulator;
5. - superficie de reception de la ferula;5. - reception surface of the splint;
6. - huella;6. - footprint;
7. - estructura de apoyo;7. - support structure;
8. - elementos de conexion;8. - connection elements;
9. - reproduction de los dientes;9. - reproduction of the teeth;
10. - rebajes;10. - recesses;
11. - piezas lineales;11. - linear pieces;
12. - hueco pasante; y12. - through hole; Y
13. - columnas,13. - columns,
14. - primer piano de referenda,14. - first reference piano,
15. - craneo virtual,15. - virtual skull,
16. - segundo piano de referenda,16. - second reference piano,
1D.- ferula virtual.1D.- virtual splint.
2D.- articulador virtual.2D.- virtual articulator.
3D.- cuerpo base virtual,3D.- virtual base body,
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6D.- huella dentaria virtual,6D.- virtual dental footprint,
7D.- estructura de apoyo virtual,7D.- virtual support structure,
8D.- elementos de conexion virtuales,8D.- virtual connection elements,
9D.- reproduce'!on dentaria del paciente virtual,9D.- reproduce '! On the dental patient's teeth,
D. distancia entre la superficie de union al articulador y la superficie de recepcion de la ferula.D. distance between the joint surface to the articulator and the receiving surface of the splint.
REALIZACION PREFERENTE DE LA INVENCIONPREFERRED EMBODIMENT OF THE INVENTION
Es objeto de la invencion un dispositivo de ubicacion de un piano oclusal de un paciente en el espacio, que mediante una ferula (1) posiciona en un articulador (2) traditional el piano oclusal del paciente respecto el piano conocido como piano de Frankfurt u horizontal verdadera, que es el piano a partir del cual trabajan todos los articuladores conocidos. La ferula (1) se obtiene mediante un protocolo de trabajo en una herramienta de trabajo virtual.The object of the invention is a device for locating an occlusal piano of a patient in space, which by means of a splint (1) positions the patient's occlusal piano in a traditional articulator (2) with respect to the piano known as the Frankfurt piano or horizontal true, which is the piano from which all known articulators work. The splint (1) is obtained by means of a work protocol in a virtual work tool.
El dispositivo objeto de la invencion comprueba que la position del piano oclusal obtenida por el trabajo del tecnico de laboratorio es la correcta, y para ello emplea una ferula (1) que situa en el articulador (2) el piano oclusal del paciente.The device object of the invention verifies that the position of the occlusal piano obtained by the work of the laboratory technician is correct, and for this it uses a splint (1) that places the patient's occlusal piano in the articulator (2).
Asi pues el dispositivo objeto de la invencion, donde el producto resultante de un trabajo virtual se comprueba en un elemento fisico, la ferula (1), la calidad del trabajo realizado por el protocolo de trabajo en dicha herramienta de trabajo virtual.Thus, the device object of the invention, where the product resulting from a virtual work is checked in a physical element, the splint (1), the quality of the work performed by the work protocol in said virtual work tool.
El dispositivo de ubicacion del piano oclusal en el espacio objeto de la invencion comprende un cuerpo base (3) estandar (aunque distinto segun el articulador donde se va a situar) y una ferula (1) desarrollada a medida, que se coloca sobre el cuerpo base (3) para posicionar el piano oclusal del paciente respecto la horizontal verdadera del articulador y por tanto del paciente, con el cuerpo base (3) colocado sobre un articulador (2).The occlusal piano location device in the space object of the invention comprises a standard base body (3) (although different according to the articulator where it is to be placed) and a custom developed splint (1), which is placed on the body base (3) to position the patient's occlusal piano with respect to the true horizontal of the articulator and therefore of the patient, with the base body (3) placed on an articulator (2).
El cuerpo base (3) del dispositivo objeto de la invencion tiene diferentes dimensiones segun la marca del articulador (2) sobre el que se esta trabajando, ya que cada marca trabaja con unas dimensiones especificas segun el arco facial que use. Si bien el cuerpo base comprende una superficie de union al articulador (4) y una superficie de recepcion de la ferula (5) que son paralelas entre si, siendo la distancia (D) entre la superficie de union al articulador (4) y la superficie de recepcion de la ferula (5) la que varia segun el articulador (2) sobre el que se situa.The base body (3) of the device object of the invention has different dimensions according to the brand of the articulator (2) on which it is working, since each brand works with specific dimensions according to the facial arch used. Although the base body comprises a joint surface to the articulator (4) and a reception surface of the splint (5) that are parallel to each other, the distance (D) being between the joint surface to the articulator (4) and the Reception surface of the splint (5) which varies according to the articulator (2) on which it is located.
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El piano oclusal del paciente queda localizado en el espacio mediante la ferula (1) ya que dicha ferula incorpora una huella dentaria (6) de la posicion de los molares, premolares e incisivos del maxilar o la mandibula del paciente, de modo que, como ya se ha expuesto, la huella dentaria (6) de la ferula (1) es diferente segun cada paciente.The patient's occlusal piano is located in the space by means of the splint (1) since said splint incorporates a tooth imprint (6) of the position of the molars, premolars and incisors of the jaw or jaw of the patient, so that, as It has already been exposed, the tooth mark (6) of the splint (1) is different according to each patient.
Para localizar en el espacio el piano oclusal del paciente, la ferula (1) se situa sobre la superficie de recepcion de la ferula (5) del cuerpo base (3) y dicho cuerpo base (3) se fija sobre un articulador (2) tradicional. De esta manera se puede conocer la posicion en el espacio del piano oclusal del paciente, respecto el piano horizontal del articulador (2).To locate the patient's occlusal piano in space, the splint (1) is placed on the receiving surface of the splint (5) of the base body (3) and said base body (3) is fixed on an articulator (2) traditional. In this way, the position in the patient's occlusal piano space can be known, relative to the horizontal articulator piano (2).
La ferula (1) comprende en un lateral la huella dentaria (6) en la posicion de oclusion, en el lateral opuesto comprende una estructura de apoyo (7) sobre la superficie de recepcion de la ferula (5) del cuerpo base (3) y unos elementos de conexion (8) entre la huella dentaria (6) y la estructura de apoyo (7).The splint (1) comprises on one side the dental footprint (6) in the occlusion position, on the opposite side it comprises a support structure (7) on the receiving surface of the splint (5) of the base body (3) and connection elements (8) between the dental footprint (6) and the support structure (7).
Para relacionar los datos obtenidos del paciente con el articulador (2) y por tanto posicionar el piano oclusal del paciente en el articulador (2) se relacionan los datos radiologicos obtenidos con el piano de referenda del articulador, que como ya se ha comentado es la horizontal verdadera. Para obtener dicha referenda se realiza un protocolo de trabajo virtual en el que se emplean dos pianos de referenda.To relate the data obtained from the patient with the articulator (2) and therefore position the patient's occlusal piano in the articulator (2), the radiological data obtained is related to the reference piano of the articulator, which as already mentioned is the true horizontal. To obtain this reference, a virtual work protocol is performed in which two reference pianos are used.
Se parte de unas imagenes radiograficas del craneo (15) de un paciente, una vez tienes las citadas imagenes radiograficas se toma como referenda un primer piano de referenda (14) del paciente determinado por varios puntos oseos, con la condicion de que dicho primer piano de referenda (14) sea un piano paralelo a la horizontal verdadera del paciente y consecuentemente a la parte del articulador (2) que representa dicha horizontal verdadera. (ver figura 4)It is based on some radiographic images of the skull (15) of a patient, once you have the aforementioned radiographic images, a first reference piano (14) of the patient determined by several bone points is taken as a reference, with the condition that said first piano of reference (14) is a piano parallel to the true horizontal of the patient and consequently to the part of the articulator (2) that represents said true horizontal. (see figure 4)
El segundo piano de referenda (16) que se utiliza es la vertical verdadera que se emplea como referenda para el centrado del craneo (15) y relacionar la vertical verdadera con los registros obtenidos de las estructuras oseas, al igual que ocurre con el arco facial.The second reference piano (16) that is used is the true vertical that is used as a reference for the centering of the skull (15) and relate the true vertical with the records obtained from the bone structures, as is the case with the facial arch .
Gracias tanto al primer piano de referenda (14) como al segundo piano de referenda (16) se relaciona el articulador (2) con los datos radiologicos obtenidos del craneo (15) del padente.Thanks to both the first reference piano (14) and the second reference piano (16) the articulator (2) is related to the radiological data obtained from the skull (15) of the padente.
Una vez posicionado el craneo (15) del paciente con respecto a la horizontal verdadera y a laOnce the patient's skull (15) has been positioned with respect to the true horizontal and the
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vertical verdadera se introduce en el programa de trabajo 3D una reproduccion del articulador (2D) para comprobar la localization correcta del piano de referenda vertical (ver figura 6).True vertical, a reproduction of the articulator (2D) is introduced in the 3D work program to verify the correct location of the vertical reference piano (see figure 6).
Se introduce en programa de trabajo 3D una ferula virtual (1D) que se hace intersecar con la reproduccion dentaria del paciente virtual (9D) y el programa nos extrae una huella dentaria virtual (6D) del paciente en dicha ferula virtual (1D) (ver figura 7).A virtual splint (1D) is introduced into the 3D work program that intersects with the virtual patient's dental reproduction (9D) and the program extracts a virtual dental footprint (6D) of the patient in said virtual splint (1D) (see figure 7).
En el programa de trabajo 3D se une esta ferula virtual (1D) con la huella dentaria virtual (6D) a la virtualization de la estructura de apoyo (7D) lo que genera unos elementos de conexion virtuales (8D) entre la ferula virtual (1D) y la estrudura de apoyo virtual (7D) situada sobre el cuerpo base virtual (3D) (ver figura 8).In the 3D work program, this virtual splint (1D) is joined with the virtual dental footprint (6D) to the virtualization of the support structure (7D) which generates virtual connection elements (8D) between the virtual splint (1D) ) and the virtual support structure (7D) located on the virtual base body (3D) (see figure 8).
El resultado es una ferula virtual (1D) que reproduce de forma exacta la huella dentaria virtual (6D) del paciente fusionada mediante los conectores virtuales (8D) al cuerpo base virtual (3D), que a su vez puede ser colocada sobre un articulador (2D) que nos va a permitir posicionar sobre ese articulador (2D) los modelos del paciente de una forma exacta, con el objetivo de tener un control de calidad de las ferulas obtenidas en el proceso de fabrication virtual de ferulas de caracter quirurgico.The result is a virtual splint (1D) that accurately reproduces the virtual dental footprint (6D) of the patient fused through the virtual connectors (8D) to the virtual base body (3D), which in turn can be placed on an articulator ( 2D) that will allow us to position on that articulator (2D) the patient's models in an exact way, with the aim of having a quality control of the splints obtained in the virtual manufacturing process of splints of a surgical nature.
Una vez fusionados la huella dentaria virtual (6D), la estructura de apoyo virtual (7D) y el cuerpo base virtual (3D) se convierten en una figura unica y personal de cada paciente que se procede a imprimir en maquinas de impresion 3D que reproducen dicha forma virtual de manera exada.Once the virtual dental footprint (6D) is merged, the virtual support structure (7D) and the virtual base body (3D) become a unique and personal figure of each patient who proceeds to print on 3D printing machines that reproduce said virtual form exactly.
De este protocolo de trabajo en la herramienta virtual se extrae una impresion del piano odusal, cuyo resultado es la huella dentaria (6) que se encuentra en la ferula (1).From this work protocol in the virtual tool, an impression of the odusal piano is extracted, the result of which is the dental footprint (6) found in the splint (1).
Con el dispositivo objeto de la invention situado en una rama del articulador (2) el piano oclusal queda situado en una posicion en la que se puede comprobar si dicha posicion respecto la horizontal verdadera es correcta o no, mediante el uso de una reproduccion de los dientes (9) del paciente, del tipo de las que se han usado hasta la aparicion de los protocolos de trabajo virtuales en los articuladores, cuyas dimensiones vienen reguladas por el articulador (2) sobre el que se va a montar.With the device object of the invention located on a branch of the articulator (2) the occlusal piano is located in a position in which it can be verified whether said position with respect to the true horizontal is correct or not, by using a reproduction of the teeth (9) of the patient, of the type that have been used until the appearance of virtual work protocols in the articulators, whose dimensions are regulated by the articulator (2) on which it is to be mounted.
En una rama del articulador (2) se situa una reproduccion de los dientes (9) del paciente y en la rama opuesta se situa el cuerpo base (3) con la ferula (1) en la que con la huella dentariaIn a branch of the articulator (2) a reproduction of the teeth (9) of the patient is located and in the opposite branch the base body (3) is placed with the splint (1) in which with the dental print
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(6) que representa el piano de oclusion del paciente, y cuando el articulador (2) aproxima la reproduccion de los dientes (9) a la ferula (1), el apoyo de dicha reproduccion de los dientes (9) sobre la huella dentaria (6) de la ferula (1) tiene que ser perfecto, comprobando que el trabajo realizado en el protocolo de trabajo virtual esta bien realizado.(6) representing the patient's occlusion piano, and when the articulator (2) approximates the reproduction of the teeth (9) to the splint (1), the support of said reproduction of the teeth (9) on the dental footprint (6) of the splint (1) has to be perfect, checking that the work done in the virtual work protocol is well done.
Uno de los objetivos del dispositivo objeto de la invencion es evitar que el tecnico de laboratorio tenga que buscar a mano la posicion de oclusion de los dientes en una operation de cirugia ortognatica, ya que ofrece un dispositivo y un procedimiento de trabajo que aseguran que la ferula (1) obtenida mediante metodos virtu ales se corresponde al 100% con la posicion de los dientes del paciente despues de la cirugfa, sin ninguna posibilidad de error.One of the objectives of the device object of the invention is to prevent the laboratory technician from having to search by hand for the position of occlusion of the teeth in an orthognathic surgery operation, since it offers a device and a working procedure that ensure that the splint (1) obtained by virtue methods corresponds 100% to the position of the patient's teeth after surgery, without any possibility of error.
La superficie de recepcion de la ferula (5) comprende dos rebajes (10) en forma de cruz, donde la ferula (1), mediante la estructura de apoyo (7) formada por unas piezas lineales (11) con una forma suplementaria a los rebajes (10), se apoya y queda situada en posicion estatica. La superficie de union al articulador (4) comprende un hueco pasante (12) para la fijacion al citado articulador (2) mediante un tornillo que esta incorporado en el articulador (2).The receiving surface of the splint (5) comprises two cross-shaped recesses (10), where the splint (1), by means of the support structure (7) formed by linear pieces (11) with a supplementary shape to the recesses (10), is supported and is located in static position. The joint surface to the articulator (4) comprises a through hole (12) for fixing to said articulator (2) by means of a screw that is incorporated in the articulator (2).
El cuerpo base (3) en la realizacion preferente de la invencion es un cuerpo aligerado que esta formado por unas columnas (13) que comunican la superficie de recepcibn de la ferula (5) con la superficie de union al articulador (4), pero esta realizacion es una mera election que cumple con la funcion de mantener una distancia fija entre las dos superficies (4, 5). La distancia como ya se ha comentado es fija, pero varia segun el articulador (2) que se vaya a emplear.The base body (3) in the preferred embodiment of the invention is a lightened body that is formed by columns (13) that communicate the receiving surface of the splint (5) with the joint surface to the articulator (4), but This embodiment is a mere election that fulfills the function of maintaining a fixed distance between the two surfaces (4, 5). The distance as already mentioned is fixed, but varies according to the articulator (2) to be used.
En la realizacion preferente de la invencion los rebajes (10) y las piezas lineales (11) tienen una section de forma triangular que aporta estabilidad a la ferula (1) situada sobre el cuerpo base (3). Ademas junto con la configuration en cruz de rebajes (10) y piezas lineales (11) hace que la ferula (1) se situe sobre los rebajes (10) de la superficie de recepcion de la ferula (5), practicamente por efecto de la gravedad y la posicion de la ferula (1) sobre el cuerpo base (3) sea muy estable.In the preferred embodiment of the invention the recesses (10) and the linear pieces (11) have a triangular section that provides stability to the ferula (1) located on the base body (3). Also, together with the cross configuration of recesses (10) and linear pieces (11), the ferula (1) is placed on the recesses (10) of the receiving surface of the ferula (5), practically due to the effect of the gravity and the position of the splint (1) on the base body (3) is very stable.
La invencion no debe verse limitada por la realizacion preferente aqui descrita, sino que el alcance de la invencion viene definido por las reivjndicaciones que se encuentran a continuation.The invention should not be limited by the preferred embodiment described herein, but the scope of the invention is defined by the claims below.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201500452A ES2594496B1 (en) | 2015-06-18 | 2015-06-18 | Device for locating the occlusal plane in a traditional articulator based on virtual work |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201500452A ES2594496B1 (en) | 2015-06-18 | 2015-06-18 | Device for locating the occlusal plane in a traditional articulator based on virtual work |
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| ES2594496A1 ES2594496A1 (en) | 2016-12-20 |
| ES2594496B1 true ES2594496B1 (en) | 2017-11-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3439421A (en) * | 1967-01-09 | 1969-04-22 | Thomas E Perkowski | Method of making orthodontic appliances |
| GB2066667B (en) * | 1980-01-08 | 1984-07-25 | Cubana Export Import | Apparatus for the production of maxillar models through cephalometric analysis |
| EP1172072A1 (en) * | 2000-07-14 | 2002-01-16 | ISP Individual-System Prothetik AG | Device to receive anatomical articulation models |
| DE102009041575A1 (en) * | 2009-09-15 | 2011-04-21 | Ebert, Wilfred, M.Sc. | Positioning aid for cranium-related insertion of upper jaw model into upper jaw base shell for patient during dysgnathia operation, has adaptation surface for fastening to articulator, and retention surface for upper jaw base shell |
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